Wonderfully Different Remington R51

[@deaconblue949]

Mine works just fine with most of the ammo that I have tried. 99% of the idiots out there that want to rip on the gun in the comments have never even held one much less shot one. I have heard about some other folks complain about feeling pain in the web of their hand and it could be that it is impinging on a nerve in that area. The low bore axis causes the recoil to go more straight back rather than a rotation in the upward direction in other pistols. Thanks for posting a fairly positive review.

[@realQuestion]

It's the movement of the grip safety pinching your hand. Thanks for the video.

[@edmak1349]

Shoots low when using conventional sight picture. Use front sight dot instead of tip of front sight and you'll be dead on. Curl thumb down instead of thumb over thumb hold and you'll have a more comfortable range session. Gun is real accurate if you do your part. I must agree with the disassembly procedure. It is a pain to take apart. I just blast mine with Gun Scrubber then oil it with Lucas gun oil. Runs great. Hope this helps.

[@6.5mm_is_the_best_mm]

Yep. R51 has combat sight picture. Accuracy is not bad and recoil has less muzzle flip due to low bore axis. Interesting oddity to add for the collection for $200 bucks. You can get the Crimson Trace laser grip for $30.

[@jonathanhudak2059]

Good tip Ed Mak, I'll have to try that with mine next time I'm out thanks.

[@NYOB0001]

Thanks for the advice on the sight picture. I'll try that. I've been having a hard time finding the right sight picture. I have the Crimson Trace laser which works well. But I want I be able to use the iron sights.

[@adrianotero7963]

Have one of the revised ones.....bought it because I also have the old 380 version......so far I have had no problems with it......teardown is a bear so I do it every second range outing......so far so good.....I like the different working action and then grip safety....intend to keep it ....paid real cheap....

[@hatemafandi]

I own one. It had some issues in the beginning. However, after shooting a 150 rounds, it became flawless.

[@tomdevol6035]

I bought one of these a few years ago, and aside from a few teething problems in the mags, I like it. Just a bit of filing at the top and it's good to go. My only complaint is my old arthritic hands have a hard time stripping it. It's fun to shoot though. I'm gonna keep it and have my son strip it for cleaning.

[@guylynn8640]

I own one and although I have others that I like better, my R51 has been flawless.

[@hailtothe_rooster1572]

I have an original Remington model 51 I found inside a closet, in a house I bought back in ‘05. Got ahold of the previous owner of 15yrs and they never seen it..... so it was a score a guess. Cleaned it up, got new mags, and it’s ran pretty good until recent. Needs a new recoil spring for sure but other than that it’s been a fun find.

[@jonathanhudak2059]

I wanted one of these sometime after they first came out. But it seemed like they didn't last on the store shelves very long before they were being pulled by representatives from Remington. I talked with a local gun store owner and he said they've had a lot of problems with these. Sometimes the guns would come into the store and be missing the magazines and just things like that. Other people I had talked to also had nothing but bad things to say about them. Then I found one several years later used at the LGS for a reasonable price. $200-$250, (I'd have to double check) mine must be one of the newer ones after Remington supposedly ironed out all the problems. It's a cool little gun. I always liked the original ones that were made in 380 and 32 Caliber back in the twenties and thirties so the thought of having a modern one in 9 mm appeal to me. And like Graham says it's just a different pistol. I must have gotten a good one because I have had zero problems with it. It feels good in the hand hand, points naturally and is a good shooter. I like it. Other people that I have let shoot it also liked it. I've never tried shooting any steel cased ammo through it but have tried a variety of different bullet weights bike 115, 124 and 147 grain. I do agree it can be a bear to get it apart and back together again but as others have said in the comments if you practice and do it regularly it becomes easier and you'll get more familiar with it. Cool to see a new review on these and one that is positive. Great video Graham thanks!

[@andrewpoloni4197]

Might be a nice collector’s item down the road if Remington does in fact file for bankruptcy. We love TactiKitty!

[@evanacey1414]

They already filed for bankruptcy in 2018.. This will be their 2nd time filing for bankruptcy in as many years.

[@edwinmcnew4389]

I love the style of gun and rotating barrel!

[@axlsane427]

Different, yes, "Wonderfully Different" maybe is an overstatement... but, you know, wonder is in the eye of the beholder.

[@Bigdaddylobo1]

So many love to pile on negative comments with zero experience with this firearm. I love mine. Once you accept that it is NOT a 7+1 and use it as 7 or a 6+1, the failure rate disappears. The magazines are oversprung. I like to use Winchester 9 mm NATO and the gun runs really well with that round. Yeah, it's a little snappy. But it feels good in your hand, it has a nice heft to it, and I like the looks. And I hit what I'm shooting at with it. I wouldn't recommend it as an only gun, but I also like 'different' guns, and this one's a keeper. Oh, and yes, I have invented swear words taking this thing down and reassembling it. It gets easier with practice. Not so easy that it’s a breeze, but easier.

[@GBGuns]

The internet is awash with folks who like to comment without experience and simply echo what they think someone else said. Thanks for providing actual content.

[@jonathanhudak2059]

Bob Chaney good info and glad you like yours as well. I agree. Yeah it's too bad that God has gotten a bad rap. A lot of people just go by what I have heard from others and just automatically assume that it's no good even though they have never shot one. I wish more people would give them a try and they might find that they have a nice size 9 mm pistol that is fun to shoot. Somebody does a video that describes what the changes were. I think it had something to do with the magazines but supposedly there was a way you can tell if you have a newer one over an older one. Mine must be one of the newer ones as I have had no problems with it. The only thing I don't like about it is when it comes time to take it apart and clean it! LOL

[@jonathanhudak2059]

Gun has gotten a bad rap not God..??typo, d'oh!

[@christopherwg4236]

Yeah I agree mine runs really good I did have to send it in at first for a bolt fitment. but since then I have over eight hundred rounds through it and it runs great!

[@BloodiedYetUnbowed]

Mine also only malfunctions when using 7+1. Is there any way to fix this? I seen a video by HrFunk where he tries to alter the magazines to fix that issue, but none of the stuff he tried works. I feel like Remington would only need to modify the magazine to get it working with 7+1 and this gun would sell much better.

[@jeffwilson1217]

Out of all the gun reviews that I have watched, this gun by FAR has the most hate! That only fueled my desire, along with the uniqueness to want to buy it. I like to, BEFORE even going to the range, to sit and rack the slide in, take it apart, oil it, reassemble, and rack it some more. I keep the mags fully loaded to break the springs in. I can field strip, and reassemble it in the dark. This one was by far, the tightest functioning, longest to break in. But, by the time I got to the range, I was pleasantly surprised! I must be one of the lucky ones, that you read about, OCCASIONALLY, that has never experienced any malfunction of any kind. It has begun my favorite, and yes, I can and do trust my life with it. I have ran several boxes through it, including my self defense loads. To help out the rest of you, and increase LUCK, I saw a video a month ago where the man claimed he had THE permanent solution to the magazine problem. He simply cut approximately 3/16 off of the follower legs, to give it a little room, in a fully loaded mag. I checked them out, compared with my other pistols mags. Sure enough, all the other ones had a little extra room. You could STILL depress the last round a little with a mag loader. So, even though I haven't experienced any problems, I went ahead and did just that, using a Dremel tool, in all three of my mags. Now, there IS a definite difference in the action, when I rack in a round slowly, in a fully loaded mag. Pretty smooth now ☺️.

[@retthok]

Lately, for summer I've been carrying the NAA Guardian .380 with the ARX Inceptor ammunition. Very reliable and minimal recoil impulse. Cool is good but I need to have reliability if I am concealed carrying.

[@GBGuns]

Did you see how the ARX did in our 380 V 9mm article? That's good stuff!

[@allicat2551]

I bought one because I really liked the feel.of it in my hand and the slim design. Then I saw bad reviews. I took it to the range and it did lock up on me twice. I would assume it's the same issue everyone complains about. I will take it out and try it again soon. Most likely will keep looking for a more reliable conceal carry gun.

[@christopherwg4236]

I had to send mine back 2 Remington when I first bought it you can also send it to a gunsmith 4 bolt fitment..since then my gun has run flawlessly I have about eight hundred plus rounds through it it's actually a very well-built pistol just has a questionable reputation.

[@scottcrawford4148]

Super close group at 7 yards - nice shooting!

[@SmittySpeaks]

This looks like a Dollar Store water pistol. I also used to get that "sting" from my Kahr CW9

[@DemiDeity777]

Would it be possible to have that safety pinned?

[@JacksonWalter735]

Picked one up at a pawn shop near me in Houston, TX for $86. While I wouldn't trust my life with it (too many failure to feed issues), it's still a fun gun to shoot at the range. Just don't overpay for the R51 if you do plan on purchasing one.

[@bluntman420ification]

Remington as a company just sucks nowadays

[@BenMcneil-hk8xv]

I called customer service because my stock broke they answered the phone. "YA" I go is this Remington the guy goes ya I said I'm looking for customer service, he goes ya, are you customer service? YA. You want to know why Remington's failing it's their employees, they don't care if the company goes under!!! I bought a cheap 770 30-06 took it home free floated the barrel polish the bolt and shoot a mile with it. I bought it at Walmart for $230.00

[@whspioneer89]

I got mine from Classic on sale for $230 with 2 magazines

[@nimbly1693]

Does it work now? I would totally have it if it worked!

[@wichitajj6475]

Mine was 100% reliable when downloaded by 1. I was also pleased with the astetics and the accuracy of the gun. Takedown alone was the only reason it needed a new owner

[@gunfisher4661]

That`s the way mine is , got some nice walnut grips for it and still have it. One day when I get some time and extra ammo I hope to cure the download by 1 issue.

[@markw6265]

A couple tricks for reliable functioning, keep the bolt, rails, barrel / bushing well lubed. Not any different than any semi auto. Load full mags with slide open. Don't load it 7+1. Rem should have made the mags a 1/4" longer if they wanted to advertise it as 7+1. I run warm 125 gr HP handloads exclusively and it runs like a top. I probably wouldn't recommend it to a novice shooter though.

[@AOMartialArts]

I liked the idea of the R51.... Heard horror stories about them though.

[@totallynotawerewolf2936]

Just a little work will make them reliable

[@jonathanhudak2059]

Rob Hodge....if you can find one for a good price secondhand and it's a newer one, try one out you might like it! :-)

[@treedoor]

This is my favorite gun to shoot. It feels awesome, and looks awesome. I can easily shoot one-handed bullseyes with this thing at upwards of 15-20 yards. But... you just have to accept that it might not take kindly to hollow points, or loading 7+1. I wish the mechanism it uses would be put into a higher quality gun.

[@evanacey1414]

Under this definition a high point could also be considered “wonderfully different”.

[@GBGuns]

No, a high point is just a blowback pistol. You've got a bit to learn. Hi-Points are also incredibly reliable but I net you didn't know that either. You can hate for the sake of internet hating, just not on my channel.

[@Jerry-Parker]

Excellent video ! 👍

[@craighouse1279]

Sometimes I eat nachos and my crap is "wonderfully different"

[@CaveWyatt]

Craig House I “wonder” what Remington eats.

[@SCSlimBoiseID]

I actually like the R51 Gen2 a lot, but I, like you, get the stinging "red hand" whenever I shoot it. It doesn't seem to be slide bite - I'm at a loss to figure out what's doing it. I've put about 300 rounds through the Gen2 with no failures to fire, feed, or extract. It's proven itself nicely accurate at combat distances and has been 100% reliable with everything I've fed it, from 115 grain to 147 grain FMJs, as well as an assortment of hollow points (such as Hornady's 124 grain XTP). I made the mistake of buying one of the first iteration of the R51 - a true POS right out of the box. It jammed, failed to feed, failed to fire, fired out of battery, double-fed, and generally behaved badly. I happily sent it back to Remington when they issued the recall and opted to trade up for their 1911 clone. Later, when the Gen2s came out, I cautiously waited to see what other shooters reported about them. When it looked like they'd been given the all-clear, I picked one up and have been very happy with it ever since (save for the red-hand stingy thing). You put on a nice review of the R51 here - very enjoyable to watch. Be well, and stay safe.

[@christopherwg4236]

Why would they even release a gun like the r51 gen 1 without some type of testing and quality control?I understand why the gun has had such a bad reputation if all I've heard about it is true. It firing out of battery and everything else I have the Gen 2 and it seems like a good gun I have about 800 rounds through it had to send it to Remington one time but since then it runs great.

[@SCSlimBoiseID]

@@christopherwg4236 They probably slicked up the demo units they sent to gunwriters - made sure they weren't buggy. Just a guess.

[@GBGuns]

I bought this online, it's not a demo gun.

[@SCSlimBoiseID]

@@GBGuns Wasn't commenting on your example, but replying to @Christopher Whiting re: those early Gen 1 editions that all the gun rag writers wrote about right around the time that the first R51s hit the gun store display cases. I bought one back then and it was a POS right out of the box, as many other buyers found out.

[@rob10ring]

And still more Megadeth! Since their concert is postponed, I won't get to see them this month. I'll have to come here instead. This gun got panned pretty hard, but at inexpensive prices, it is interesting. Reminds me of the folly of the Colt all-American 2000, that I got on clearance. It actually shoots well. As far as Remington, something needs to change. I really would like to see America's oldest gun maker survive and thrive again.

[@ironwolfF1]

Having watched other R51 vids, the fact that it functioned without any issues is sorta noteworthy. I guess they fixed the gun's worse flaws, then again, I'd have to see waaaay more than two magazine's worth of ammo going down range to be sold on the Vers. 2.0. If I had to guess, I'd say that the 'stinging hand' issue is related to the lightness of the pistol, or the design of the grip safety... 9mmP is not a wimpy round. I suspect shooting +P rounds would be even more unpleasant.

[@richki.24]

2 weeks ago a buddy of mine went to buy his 1st firearm, the shop he went to had a RP9 ..... he calls me and asks if $450 is a good deal on the Remington RP9 ...... I said don't you dare spend that much on the RP9 ..

[@PPMOCRG]

Rich Ki. Thank goodness that he asked you before making that mistake.

[@BloodiedYetUnbowed]

RP9 is a good gun. Haven't had any problems with mine. But 450 is pretty high for one.

[@richki.24]

@@BloodiedYetUnbowed , yeah $450 is very high for an RP9 considering right before the plandemic they were going for about $250-$275 ..

[@BloodiedYetUnbowed]

@@richki.24 Yeah I just looked, they're around 375 now on Gunbroker. 250-275 is an absolute steal on the RP9. I haven't had single problem with the RP9. I think it's a good looking gun, feels good in my hand, great magazine capacity, functions flawlessly. Are there better guns out there? Sure there are, but not for 275 bucks.

[@richki.24]

@@BloodiedYetUnbowed , I told my buddy just to buy a S&W MP 2.0 or Glock if spending close to $500.

[@cedric2276]

Looks like a Taurus Spectrum

[@DonMeaker]

Mine works fine. I only shoot it with +P 124 grain ammunition. "Pedersen Hesitation Lock"

[@totallynotawerewolf2936]

I find that if you have smaller hands that snappy feel goes away

[@GBGuns]

That makes sense if you can get your whole hand on the gun.

[@CzechoslovakGunStories]

Nice video! I would buy one just because of the interesting system and since it is very good looking.... I like things that work differently... I just recently bought a 9mm PCC, trigger sucks, bolt hold open works only when you don't want it to work, it is heavy and bulky... but I liked the design and the price was good... so what :D

[@gunfisher4661]

May not be able to get one now that Remington is going down, but I don`t expect them to be worth that much even so in the future. I bought mine because it was different more of a conversation piece than any thing but to me it`s a good shooter and accurate .

[@jonathanhudak2059]

Cool name Czechoslovakian Gun Stories... rozprávas po Slovensky?

[@CzechoslovakGunStories]

@@jonathanhudak2059 každý čech umí slovensky :) jasnačka

[@jonathanhudak2059]

Czechoslovak gun stories....vidim. Odkial ste?

[@CzechoslovakGunStories]

@@jonathanhudak2059 kousek od Ostravy :)

[@wbwills2]

Like different too .& this is a longer look ,by far, than I’ve taken of the R 51(2)up to this point. My friend has 1.stayed over night recently on his couch. Rusty nails...lamb chops...more rusty nails = couch.he had been cleaning A few old revolvers, a polymer CZish clone of some sort, and the replacement for recalled R51-1. Was on the coffee table in front of me the whole time. That was the only gun on the table I never touched. Not once. The rest of them, check them out top to bottom and a couple multiple times. That has never happened with a table full of guns. Subconscious maybe.?.Somethings just don’t grab you I suppose.?. Or even reach out and poke you in this case.DK??? But thank you for your time. Have a good one

[@wbwills2]

He likes it . Or ,I would venture to say ,has nearly identical feelings towards it as you do. thats all that matters.

[@GBGuns]

Yup, not a gun I love to shoot, but I appreciate that it's a unique operating system

[@CaveWyatt]

“Wonderfully different”. Well, I suppose “wonder” is a good word for it.

[@bigredone1030]

As in “ I wonder why this cancer has not been discontinued yet”.

[@scottschreiber6008]

It sounded like you hit all double taps. Don’t sell yourself short!

[@kevinkeener3216]

What garbage can did you find that in?

[@GBGuns]

What's wrong with it?

[@GBGuns]

@Paul Curry this is one of three

[@GBGuns]

For almost every gun we do a tabletop going over features, fit and finish, then a Shooting Impressions video on the way the gun shoots. Sometimes an extra video like this one

[@bigredone1030]

Remington R51 - “It’s probably better than nothing!”

[@josephesquivel4066]

But with a reliability record as the R51, is it really though?

[@Douglas-Ops]

Cool little retro style gun, now even cheaper than the 9mm ammo to feed it, lol Thanks for sharing this 👍🏼

[@MatthewFant]

It’s such a cool looking gun. It’s such a pain in the ass though.

[@Kratos_God_of_50_BMG]

Arex guns? I know you have some videos already, but they are *wildly* underrated, and I think they qualify as Wonderfully Different. Other than the full size Rex Zero 1 being a Sig 226 “clone” of course 😅

[@GBGuns]

A clone of the NB Inat from the Zastava from the 226!

[@GBGuns]

I was the first to cover that gun but no one cared then

[@Kratos_God_of_50_BMG]

Graham Baates Oh you’re right, I forgot about the Inat, Durrr LOL The reasonI brought it up is because I just bought the Rex Delta last week, and not only is it awesome, but the price is under $400. Just thought I would share. Great video by the way! 😁👍🏽

[@Kratos_God_of_50_BMG]

Graham Baates I had a Rex Zero 1 Compact and no one else had even *heard* of them like you said.

[@whspioneer89]

“Interesting ces-(pool?)”

[@sandyweeks5302]

I am very surprised that it's so snappy since it is a blowback pistol. The Walther CCP M2 9mm and the .380 acp are blowback pistols and they have very low recoil.

[@davidpass3584]

Sandy, I think you're confused. Blowbacks are usually snappy. This is NOT a blowback.

[@sandyweeks5302]

@@davidpass3584 yes I think I was confused back then. This was a year ago and i did learn more since then I think lol. The Walther is gas operated right?

[@GBGuns]

The Walther is gas piston delayed.

[@sandyweeks5302]

@@GBGuns Oh ok...thank you so much!

[@GBGuns]

No problem. Never stop learning! I show how it works in the tabletop video

[@frederickvandam121]

I like mine, but mine is more reliable with 6 shells in the mag. 7 shells nosedives a shell when racking it into the chamber.

[@showtime2629]

I'm about 60% sure if this wasn't a Remington product it would preform better.

[@heep34987yt]

Lot of internet parrots bad mouthing the Gen 2, 99% probably never even fired one much less hold one.

[@siestatime4638]

Loved the looks, but the squarish corner at the rear of the frame drove straight into the joint of my thumb. Painful. Maybe someone with a different sized hand may get a better fit, but, coupled with the truly evil disassembly/reassembly... I sold it.

[@nunyabidniz2868]

EPIC FAIL: All Remington had to do was bring back the Model 51; instead they redesigned it into a POS disposable gun that doesn't work and eats itself alive. [Hint: never use steel on aluminum for a critical wear interface, like, you know, *the locking surfaces!*]

[@gerryk3114]

I FOLLOWED THE R51 FROM DAY ONE TO ............? I LOVE THE LOOK, BUT I WOULD NOT WANT ONE TO HAVE OR SHOOT, EVEN IF YOU PAID ME !!!! DANGEROUS GUN.

[@christopherwg4236]

Why is it dangerous

[@johnmoorefield76]

Looks like a crappy gun to me. Most definitely nothing I would want to own. I'll keep with my full size or compact size guns! Thanks for the review Graham. Glad it was you that got the crab claw hand! Looking forward to your next video.

[@TacticalTightwad]

Great job, Graham! The clickbait title "Wonderfully Different" sucked me in. I just had to watch anything that used the word "wonderful" to describe the R51!

[@fuzzball7972]

To be fair, he called it 'wonderfully different', not necessarily wonderful :D

[@GBGuns]

Thank you for having reading comprehension.

[@ievgenulrich4074]

why you are wearing "gorka"?

[@GBGuns]

Because it's comfortable. I also wear underwear.

[@user-jetmachinist]

Nah !! theres a lot of better options to choose from.

[@daveb1964]

If anyone is interested, Grabagun.com is giving one of these away this month.

[@davidgiles9751]

Not a knock on the video, but I think I'd rather spend my money on one of the newer Taurus designs vs. any Remington product these days.

[@GBGuns]

I don't take that as a knock at all. I'm not trying to sell anything, just documenting a design that is different.

[@notrightmeow3357]

Great video, but I’ll pass.

[@hillshepherd9444]

Get the SCCY “DVG” with no red dot on it!!!!!!!

[@triggerman1092]

I dont know why but when i say remington r51 i dry heave a little. Lol!!

[@steve37ist]

Last one was2 hits ping ping

[@ratagris21]

It would be nice if they actually ran because it's only purpose is being a paperweight of a pistol. Remington as a company is very flawed and cheesy.

[@corycarlson8712]

Remington ammo kaboomed 2 of my Remington hunting rifles. Mine and my dad's... And their customer service was little more than F off.... I will never touch their stuff again. We had Remington guns from the 1920s.... Never again.

[@brianbrooks9502]

RP9is a horrible gun.

[@Elvis68spec]

Not good platform!

[@coryhenson5059]

This pistol is junk.

[@GBGuns]

Is that your experience?

[@jonathanhudak2059]

Cory Henson, have you ever tried one? I have one and like it a lot. I've never had any issues with it and it is a good shooter and the ergos are pretty good. It can be difficult to field strip but practice makes perfect.

[@petermonck5448]

👍☕😎

[@12_inch_spinnerz]

It's garbage

[@GBGuns]

Is that your experience?

[@12_inch_spinnerz]

@@GBGuns yes, actually

[@bluntman420ification]

The r51 sucks balls

[@AlexKS1992]

Two words, hot garbage. I was impressed when I first saw it years ago but when it hit the market any chance of this pistol succeeding went out the window. Even when Remington released the Gen2 it didn't improve much.

[@MrShtbrick]

Great concept, albeit poorly produced Remington piece of shit.

[@kimballscarr]

Graham... pain and injury production are a product of two things "Rate" and "Pressure". The pain receptors in the sympathetic nervous system work over a range of input rates evolved during evolutionary time. Meaning you can feel pain if the rate is within what a human would experience living in the wild, so to speak, just things you might find out in the natural world that cause pain. However, if the rate of input is higher you will not feel pain... such as a bullet impact. The pain felt IN THAT CASE is later or delayed, cause by tissue damage, and inflammation. Pressure is the primary cause of pain, meaning the pain receptors are primarily pressure sensors. Now what does this mean as to what is going on with the gun. The Pederson Lock used is a delayed blowback. It is different in that it is what is termed a "hesitation delay system" but uses a small independent breech block component mounted in a slide component rather than a "monolithic slide breech block" like most other pistols; his short video shows the basic mechanism in operation... kzbin.info/www/bejne/g2nTgodrjd2cq6M. This video is more complete and longer... kzbin.info/www/bejne/a6TVp5SBmdanfq8 . Hint it operates much like the original Thompson Submachine Gun. The the barrel is not fully fixed, though it might appear that way, but can move forth and back under recoil and by the recoil spring pushing it forward.... not by very much though. The independent breech block is the main mode of operation and delay, Upon firing a round, the barrel, cartridge case, the breech block along with the slide travel backward against the recoil spring pressure a few thousands of an inch caused by the initial momentum transfer recoil launching the bullet. This causes when the barrel travel stops a momentum transfer to the frame of the weapon, a very quick high rate stop and shock to the mechanism though the barrel retention system, the direction to this is about at the same angle as the stop and the breech block shoulder aft and down in reaction force... Newton's 2nd Law of Motion - the vector sum of the forces on a mechanism equal the momentum, then under Newton's 3rd law, an object exerts a force on a second body, the second object simultaneously exerts a force equal in magnitude and opposite in direction on the first object. But their is more...then after the barrel stops in the impact on its stop pin... the cartridge case while still under residual pressure is pushed back in the chamber with the case walls dragging along the chamber walls slightly braking the movement transferred to the breech block and slide by the cartridge case from force of gas pressure and the momentum imparted by the recoil. The case due to the slight reduction in pressure caused by the initial hesitation time delay from the slight movement of the barrel, cartridge case, breech block and slide when the barrel stops against its retaining pin; this prevents the cartridge case from blowing out... à la Graham's case projection testing in the table top... making the case projection from the chamber more. So the initial hesitation delay of the barrel movement prevents the failure of the case due to exposure to only slightly reduced firing pressure, allowing pressure to drop slightly to case survivable levels, THAT IS THE SOLE PURPOSE. This is not like the Thompson SMG as the Thompson relies solely on case stiction under pressure and mass of the breech block, i.e. traditional blow back. The second part of the delay and the main hesitation is the breech block hitting a stop on the frame, and bumping over the stop by incline of the angle of the stop shoulder. This is the main portion of delay. As it changes direction bumping over the stop and tilting the breech block momentum and some of the slide's momentum is transferred at an angle corresponding to the angle of the stop and breech block motion, in the block tilting upward at its aft end. This imparts a slight delay and large momentum transfer to the breech block and the stop shoulder on the frame. The vector sum of this force is divided between the breech block tilt motion, and the motion of the frame down and back at about 45 degree direction. It is a very short and fast impact. This is exactly how the Thompson SMG Blish lock works except there is no impact as there Blish lock is in constant contact with the bolt and the frame, primarily as Blish's concept includes the friction between components. Pederson there is an abrupt impact due to the allowable movement between the breech block and the frame, rather than Thompson SMG friction (compared to the impact transfer), and similar change of motion of the blish lock component. In either case the relatively low mass of the Blish Lock in the Thompson or the breech block in the Pederson design very efficiently transfers the momentum of the recoil force/momentum/motion in a OFF AXIS DIRECTION TO THE BARREL BORE, this reduces muzzle flip and recoil transferred to the shoulder or hand, by redirecting it into the low mass off axis component momentum. However unfortunately, in the R51 Pederson design the impact and transfer of momentum (equal and opposite force, Newton's 3rd law, gets transferred into the frame as a shock and high level of momentum to force transition due to the impact or high rate nature of it. Of course, the direction is right to the web of the hand when in another momentum at a high rate of speed takes place very efficiently transferring the the energy from the momentum into the hand web area! Giving Graham a nice inflammatory reaction! Of course, few gun designers are bio-anthropologists along with educations in physics!

[@kimballscarr]

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[@msfreeman1567]

Your knowledge is vast and appreciated!!