BORESCOPE BLUES - 33XC

33XC SAGA CONTINUES

[@Michael-rg7mx]

Those marks had to be left over from the drill. It was severe galling. Lack of chip removal.

[@quarterminutemagnums]

Dear Sir - Barrel going back to Brux; let's see what they say........thanks.

[@long-range-eliminator]

Thanks for all the video and information. Great job. I know this gun has drove you bonkers, but if anyone can figure it out, you will !

[@quarterminutemagnums]

Dear Sir - the relentless pursuit of perfection; bonkers indeed. Thanks.

[@cbsbass4142]

Enjoy watching your work.

[@quarterminutemagnums]

Dear Sir - Thank you.

[@blindboyjonny]

I am pretty sure that you know this, but after the blank is drilled and reamed, then honed using a crosshatch pattern and stones to take out any of the machining marks. The micro scratches that are in it is what’s being seen with the board still. Pretty typical.

[@quarterminutemagnums]

Dear Sir - perhaps...................thanks.

[@charlesmullins3238]

Looks like a extra groove n one side

[@quarterminutemagnums]

Dear Sir - it does look "weird" but not jumping to any conclusions yet..........thanks.

[@Accuracy1st]

I've had multiple custom rifles built. I was always under the impression that the builder pushed patches and brush through it BEFORE test firing it which, in my opinion, should always be done simply because of the chambering process. What I found once I started using a borescope is that almost every cut rifled barrel or button rifled barrel I have had imperfections like a bullet traveled over metal shavings, even thread like appearing metal that would lay over lands and grooves, and embedded them into the rifling EXCEPT a few which are 3 Shilens, 1 Broughton, and a Bartlein and Brux. My Obermeyer, Kriegers, Liljas, Hart, all had imperfections and as it turned out, none of those rifles were cleaned before firing the first shot. Either Iosso or JB bore paste should be used in the throat once chambering is finished in my experience and opinion - not a lot needed but it makes the bore look like it did once finish lapping was completed. I have multiple cut rifled pre-turned blanks on hand from multiple manufacturers and I've scoped them all. The cleanest or as close to perfect appearance as you can get are my Brux and Benchmark barrels. What does that mean? I don't know and I also don't know if it will have any bearing on accuracy

[@quarterminutemagnums]

Dear Sir - excellent information, thank you. By the time one of our guns fires its first shot, dozens of patches have passed through it. If you watch our in the field test firing videos, you will note we always begin by pushing Kano-Kroil and numerous patches through a new unfired barrel. Thanks....

[@Accuracy1st]

@@quarterminutemagnums Yes I have seen that and when you and I spoke on the phone a few months ago you reiterated that. Your customers appreciate your efforts I'm sure.

[@cbsbass4142]

You may have to scope them when you get them...just to compare later. That being said, I got a EABCO Accuracy barrel in .260 Rem with a 1/8 twist that shot .395 at 100 yards after break-in which called for use of JB bore paste. That was with first load tried, once fired brass, FL resized, 120 grain ELD match over 4831SC. Never scoped the barrel. It was advertised as 2 pass button rifled. With the Choate tactical stock and Timney at 2lbs, it was less than $1000 to build on an old Stevens 200 243 short action. I think the barrel at the time was $239 I try to do a break in, because I didn't with a Model 70 Featherweight in 7X57. And I can clean all night and still it's dirty. The Choate, I would pretty much call a bench rest stock, compared to what I am used to. Another friend online got a 70 Featherweight in .257 Roberts. Shooting wild groups to 3-4 inches. Checked his with a bore scope and the lands were uneven.... apparently from the factory. Sad to see Winchester Discontinuing so much, but it their QC is going to trash..well,.,.,.it's just sad. I've worked on my 7X57 to get to MOA, as it initially shot greater than 2MOA. Most of it load work seating depth (it's deep throated) and cranking torque on the action screws to about 50In lbs. Don't want to crush the wood.

[@quarterminutemagnums]

Dear Sir - thanks for the insight. Appreciated......

[@Strutingeagle]

Slug that bore.

[@quarterminutemagnums]

Dear Sir - going back to Brux............thanks.

[@planeiron241]

looks like the barrel could be cleaned, full of carbon black streaks, use isso bronze brush patch and scrub the shit out of it..then look at it

[@quarterminutemagnums]

Dear Sir - I am done; barrel going back to Brux, will report on their findings. Thanks.....................

[@long-range-eliminator]

Could this have been cause from the swagging process of dull carbide tooling ?

[@long-range-eliminator]

As I said I think it's bad tooling that cut the rifling.

[@quarterminutemagnums]

Dear Sir - unknown. Going back to Brux. Will report results. Thanks.

[@raoulmorejohn9478]

Looks to be a good candidate for some Tubbs final finish. Reminds me of a Mcgowen I had. The brux barrels I have scoped have been much better than that. I have a Hawkeye scope that shows everything good or bad. I always scope new blanks, life is to short not to. Keep up the in depth video's, great content 👍

[@quarterminutemagnums]

Dear Sir - going back to Brux, let's see what they have to say. Thanks.

[@scottstruif3939]

Cutter chatter marks must be removed by hand lapping

[@rickyspeakman4445]

I won’t use hornady brass for it has proven on a few occasions that it can not shoot at good as other brass I use. Brush could have let one go out of their quality control so it is hard to tell, but until the new barrel is put on anD shot. You won’t be able to say it’s the barrel. Also, the reamer could be off a little.

[@quarterminutemagnums]

Dear Sir - exact same Manson reamer that produced the first two very accurate rifles. Thanks.........

[@maxcoatlhunter4322]

Very interesting Mr. West! Another great and informative video. It coould be that, when they finish building the barrel it had some metal shavings inside and they fired/tested the barrel without cleaning it? I hope you share with us what the manufacturer finds out. Thank you Sr. and God bless!

[@quarterminutemagnums]

Dear Sir - Mr. West? Adam West? Batman???????? Thanks.

[@Hammerback0]

I see what she sees in the streaks, it may be in the borescope, where the end is off. Just a guess, i know u are frustrated, I dont blame u. Good luck with it, hope u get it lined out.

[@quarterminutemagnums]

Dear Sir - appreciated.........thanks.

[@edkennedy7480]

Great work!

[@quarterminutemagnums]

Dear Sir - thank you.

[@tallyman15]

It'll be interesting to see what Brux finds.

[@quarterminutemagnums]

Dear Sir - will report findings when I have them. Thanks.........

[@long-range-eliminator]

Have you checked the twist ?

[@quarterminutemagnums]

Dear Sir - 1-10" but only with tight patch on a rod. Thanks..........

[@donnelhuddleston2478]

What would it cost to get you to build a basic long range (1K plus yards) rifle in something like a in the .30 ultra Mag - to 416 Barret caliber class?

[@quarterminutemagnums]

Dear Sir - cost is completely component dependent; expensive parts, expensive gun, etc........Please just phone us for details. Thanks.

[@breconsatchwell3250]

Photos look fantastic 👍🏼 that’s the best way to do that kind of stuff. Is your camera Canon, Nikon or something else?

[@quarterminutemagnums]

Dear Sir - Canon pocket. Thanks...........

[@scottstruif3939]

Cutter chatter marks. Barrel should have been lapped before shipped.

[@quarterminutemagnums]

Dear Sir - All Brux barrels are lapped. Thanks.

[@Accuracy1st]

At the 36 min mark where the borescope video starts again, the asymmetric appearance is most likely the borescope not being exactly centered. This is common because it doesn't take much for the lights to make that appear the way it does. The thinner heavier carbon marks are centered in the grooves typically and the more diffuse wider lighter carbon is on the top of the lands. Still, I am eager to see what Brux has to say about the barrel. If I ever build a 33 XC it will have 4 grooves

[@quarterminutemagnums]

Dear Sir - For proprietary reasons known only to them, none of the top barrel manufactures will make a 4 groove .338 barrel. And, as far as I know, only Bartlein makes a 5 groove, 5R. I do not know why and they will not tell me. Like you, I also prefer and order 4 groove when available, but we have also had some excellent 5R barrels. Thank you, appreciate your insight.

[@Accuracy1st]

@@quarterminutemagnums Krieger makes 338 5R barrels. 5R is one of their main offerings. I have barrels from Boots Obermeyer in 5R. Benchmark barrels has this on their website: "Barrel blanks are produced in all of the standard contours and with the option of 2, 3, 4, 5, 6 and 8 land/groove configurations and a variety of twists in most calibers" All of my cut-rifled Benchmarks are 5R because that's what they had in stock. I'd wait 12 months to get a 4 groove cut-rifled barrel but I don't know if they will do a 4 groove 338 barrel. You could reach out to Ken at K&P barrels and see what he offers. I'm told his steel comes from Germany and his barrels are cut-rifled. I'm told he worked for HS Precision building their barrels for decades. I'm having a 7PRC build right now with a K&P barrel 8 twist #5 contour

[@quarterminutemagnums]

@@Accuracy1st Dear Sir - thanks for the information. I will do more research. Thanks.

[@Frostytravels]

the neck looks like heat scoring. The Hash marks look like a contaminate got in during primary set up of the barrel. As the lands and grooves were make it seems like a contaminate or piece of metal came off and scored for a small portion of the barrel. This looks like it came from the manufacture. My opinion is the primary set up and manufacture of the barrel was contaminated. I am sure they use lubricant designed to remove any debris from the process but it looks like this came from the manufacture process. Something appears to have failed when it was made.

[@quarterminutemagnums]

Dear Sir - possibly? Let's wait and see what Brux concludes.......thanks.

[@Frostytravels]

@@quarterminutemagnums Hey thanks for the reply. Seriously like your videos, and your philosophy of life in general. Do it right or do not do it. I am by no means an expert on what you do. Just a humble observation.

[@quarterminutemagnums]

@@Frostytravels Dear Sir - understood. Thanks.

[@long-range-eliminator]

Give trigger tech a look

[@quarterminutemagnums]

Dear Sir - used many in the past. Had some issues. May return to them? Thanks.

[@kilekinney253]

you got a BAD barrel

[@quarterminutemagnums]

Dear Sir - almost certainly, but we will wait on Brux to pass judgement. Thanks...............

[@planeiron241]

teslong is a great borescope

[@quarterminutemagnums]

Dear Sir - for the price point. Thanks........

[@stullhead3531]

Maybe you can shoot a round in gel and recover it and measure the pattern left on the bullet to see something wrong with the rifling?

[@quarterminutemagnums]

Dear Sir - interesting idea. But, how many blocks would it take to stop a 300g Berger going 3,200 Fps???? A LOT!!! Still, send us the blocks and we could try it. Thanks............

[@Accuracy1st]

@@quarterminutemagnums I'd say one 24" block would do it considering it's a Berger, especially at that speed. Would likely fragment by the 15" mark

[@robinepps7274]

@derekmcmurry4263 24" of gel will not be enough! I shot 5 rounds at my back stop @50 yards, ar550 1/2" thick at a 45° angle, and I shot a hole in the steel.

[@robinepps7274]

P.S. I use nothing but 300 grain Berger OTM's

[@quarterminutemagnums]

@@robinepps7274 Dear Sir - hello again. I agree with you, highly doubtful 24" gel block will stop one of these beasts! But, if they send me one, I would try. Thanks.

[@Longshothawk]

Perhaps you sent a few of those extra brass cups that came loose down the barrel? I usee peterson brass in a 300 win and had trouble. When i switched to lapua my groups shrunk by half.

[@quarterminutemagnums]

Dear Sir - Wow, interesting thought!!! Let's see what Brux determines. Will report findings..............thanks.

[@5stargunsandgear]

I had a FFL and also gunsmithed in Texas for several years and funny how people think Gunsmithing and Selling guns is profitable. Well yes you can make a few $ but not much margins are super thin in this business. Matter of fact you run into a issue on smithing and considering your time you maybe working below min wage. Looking at the chamber mouth is the cases getting trimmed way too short when loading causing the damage?

[@quarterminutemagnums]

Dear Sir - all brass trimmed to exact same length as used for previous two 33xc's. That end gap is actually only about 0.010" - 0.012". Thanks...............

[@stevewalter2672]

It looks like Brux doesn't inspect their barrel with a borescope maybe?

[@quarterminutemagnums]

Dear Sir - Ken told me they inspect every barrel. Let's just wait and see what they conclude after I return it.............thanks.

[@long-range-eliminator]

Would the brass not be a tooling issue on their end ?

[@quarterminutemagnums]

Dear Sir - not sure I understand? Thanks.

[@benbaker2893]

What about the Muzzel Brake

[@quarterminutemagnums]

Dear Sir - checked both ends of barrel, just didn't film it. Seemed fine........thanks.

[@jammbbs1688]

I'll shoot any of these for you 😍

[@quarterminutemagnums]

Dear Sir - we always need help. Contact us if local...........thanks.

[@charlesmullins3238]

Boring barrel mites…grind a couple mothballs up and sprinkle down the tube..put yer lips up to it and blow…you’ll see all kinds of different stuff after that…

[@quarterminutemagnums]

Dear Sir - ????????????????........thanks.

[@charlesmullins3238]

@@quarterminutemagnums as nutty as buildin quarter min rifles makes a man you may not need any extra assistance achieving a federal check…

[@quarterminutemagnums]

@@charlesmullins3238 Dear Sir - getting hit in the head a lot helps. Thanks.