TESTED: Sierra 6mm 107gr MatchKing Bullets

[@RumblestripDotNet]

You are more likely to see the great white buffalo than 8208.

[@halfdollar86]

H4985 has been a tough one the last several months as well.

[@nekoghostgunner1129]

I've been looking for more 8208 for my 5.45 load development, but I have basically given up on finding it now and am likely going to play with CFE223 and Staball Match to develop a replacement load.

[@Rushshooting67913]

There is 8208 all over the place here in southwestern pa

[@briansupermag3918]

​@Halfdollar 86 been looking for that for over a year with no luck😢

[@hawaiiangunner]

Lol you're showing your age with that comment! So am I lol😂😂😂😂

[@The4GunGuy]

Great video Gavin. I couldn't find Berger's during Covid, so went to SMK 107's in my 6mm BRA and have never looked back. Very consistent as you mentioned and I'm running them slower for PRS (~2790 fps) with impacts on 1 MOA targets at 1,000 yds. The big plus is that they are cheaper and more available than Berger's.

[@briansupermag3918]

Ain't that the truth. I am looking for .243 109 berger hybrids. I want to give them a try. Got 115 vld target and 108 elite hunters to play with . Oh and a few hundred 110gr A Tips. Its a scavenger hunt for components

[@jonathanlogan6647]

I've used both 105s and 107 in my 6 dasher. The gun loves both of them. Hard bullet to beat as it's just so universally loved by all 6mm caliber guns

[@halfdollar86]

I use 107 smk and h4350 in 6cm. It’s one of my most consistent and accurate loads.

[@balazra]

H4350 ( AR2209 ) is a rebranded ADI (Australian defence industries) powder. They are a long way behind production due to supply lage quantities to Europe and moving location of their factory 2 years ago.

[@halfdollar86]

@@balazra yes I am aware. I use a lot of the extreme series and some of their shotgun powders that ADI makes. They are absolutely some of my favorite powders. Some are harder to get her in my area (Ohio Valley USA) than others. Varget, H4350, Benchmark, H322, H4831 and 50BMG has been readily Available in my area for a good while now. 8208 and Clays has been hit and miss. H4895, Retumbo, H1000, International, Universal, H4198 have been hard to come by in my area lately. Every area is different it seems.

[@aaronbrock6437]

That’s my combination in 6 cm too 39.9. 20 off the lands A little over 3000 fps and a single digit sd

[@mikerush1915]

I'm using the Sierra 107s in my 6 BR Impact. First trip out with no load development I got 5 shot groups in the .3s, second trip out I made first round impacts on steel out to 872 yards with 65 rounds through a prefit barrel I torqued on in a driveway. They are working great for me!

[@douglash.8862]

YUP,.. I'm using them, in a 6 XC Tubb Chamber, Version One, 1-7.5 Twist, Criterion Barrel with, a Light "Jam" into Rifling, @ 2,950 FPS and getting, "BugHoles", in the 2's & 3's ! IF, "Jamming" Bullets, Reduce the Powder chg about, a 1/2 a grain or, so ! I start Powder / Load, "Work-up's at,.. .020 to .025, "Off" Jam, to find, Max SAFE, Powder Charge, then Reduce when moving Bullet closer to, my Jam point. StaBall 65 and N-160, produced best accuracy for, my 6 XC

[@briansupermag3918]

Love that you just posted this. I just got my 500 pack of these 107 smk in the mail. While I have no actual experience yet, I will soon. Will be shooting it in my custom MPA build.

[@johnknouse8846]

I love the heavier (105-115) bullets in my 6mm creedmoor build, with a Shilen 1:7 twist barrel. Super easy to load for.

[@paunchouspilot6757]

My best 5 shot group at 1k was just over 5 inches using H4350, Lapua brass from a Ruger RPR. Low ES and SD with the 107s.

[@guardianminifarm8005]

Great builds. Good offerings. SMK is an old tried & true in all of our rifles over the years. Thank you

[@gmanbeavis]

243W is far the most popular 6mm overall. Surprised it hardly got mentioned in this video. Been kicking ass since 1955.

[@antitactical]

31.5grs of varget in a 6 dasher. 107 smi .005 off the lands. Consistent sub .3 moa 2960fps 30" bartlien with a kelbly panda action.

[@hawaiiangunner]

Ballistic gel testing with Sierra match kings are amazing!!!! I know it says not to on the box, but I've been shooting axis deer with Sierra matchking for over 20 years. I love it they don't even take one step. drop every single time right where they stand!! And there's no exit wound!!!

[@tonydevich7937]

I'm just getting started on a 6 dasher h.s precision barrel , a dave manson reamer for berger 105's,im going to try the 107's also using varget powder

[@JohnDonohue-ft5kf]

It's hard to ignore results like that and I also had very good results with Sierra, but if I want the best long-range performer, it would be Lapua’s Scenar-L bullets for me. They are King, IMO

[@natinnh1]

Just ordered 500 yesterday. Planning on loading for 6 Creedmoor.

[@alisonvine6471]

Love these SMK's in my Savage 12 br, super accurate and shot sub .3 first time out. 30.3 GR Viht N-150 does the trick !

[@tommybrowning6576]

I’m shooting the 107’s factory loads through a 23lb 6 creed with excellent results. Well below a 1/2 moa

[@drtywk]

Any chance you are working on some testing with these in a 6 ARC gas gun?

[@TomSuveg]

Love you channel. I use the 107 smk’s in a custom Remington 700 in 6 GT. 33.6 grns of Varget, Federal 205m primers seat .040 off the lands. 2960 fps with a sad of 9 and a es of 21. This combo produces consistent 1/4 MOA groups

[@oatmealsavage82]

I've got a load with them in my 6br that has an repeatable SD of 2 and shoots 5 round groups in the.3s

[@kurtjensen7930]

I’ve had excellent luck with the 115dtac with 1 7.7 twitch with a 6 creedmoor. Dtac made by sierra. Another option.

[@Jeff_Seely]

I've been wanting to try these in my 6 mm Creedmoor. The rifle really seems to do quite well with burger 109gr hybrid target bullets.

[@Dave-cf2ng]

Having a heck of the time with the new 177gr SMK.

[@Ntmoffi]

Would love to see you guys test some 6.5 bullets in the 100-130 grain range.

[@bobbybell36]

Great video, You posted the velocity with the 6mm GT but not with the 6mm Arc, Could you post those?

[@lancewatkins8677]

I think the g7 bc is way under rated. I've shot thousands of these through my 6 bra's and have found a default g7 bc of .283. 7.5 twist. Lot to lot it might change a few points in either direction but I start testing at .283

[@jimmy04svt]

I run them in a 243 at 3060fps. The g7 bc I am using .275. It works at distance. Also I have had other shooters at matches tell me the same. Bc trueing would be a good episode

[@lancewatkins8677]

@Jimmy Riley the newer pointed ones?

[@jimmy04svt]

@Lance Watkins yes. I have been running 107s for about 5 years in matches. They are very consistent and that bc is what I have stuck with for most of that. I shoot it past 1000 yards quite a bit

[@CorwinBos]

Great versatile bullet. I use it in 6 Grendel and 6 Creed. Velocities seem really good. Better than a 105 or 109 Berger by about 50 fps at the same powder charge from my guns.

[@brucegillespie654]

Gavin I use the 107 Smk in 6 BR ,6 BRA , 6 xc for mid range competition they work well but in total honesty the Berger line of 105,108,109 beat them out in competition.They are plenty good enough for steel shooting out to 600 in my experience.Powders I have used in the above calibres Varget ,8208 BRX ,N-150 ,H4350

[@briansupermag3918]

Bruce I was hoping someone would bring that up. Kind of what I would expect. I got 300 115gr bergers vld target ready to load.

[@brucegillespie654]

Brian there’s a saying with the benchrest and F Class community .Shoot Berger ,shoot better.Those 115 vld targets work well in my Xc .For me just touching lands back to about -005 @@briansupermag3918

[@briansupermag3918]

@@brucegillespie654 thank you for the response I am just getting into more precision reloading. Mostly a hunter but now getting bit by the accuracy bug to make better ammo.

[@brucegillespie654]

Well have fun it’s a deep rabbit hole but very rewarding.There’s lots of great mentors out there !

[@balazra]

Varget (AR2208), 8208, H4350 (AR2209) is a rebranded ADI (Australian defence industries) powder. They are a long way behind production due to supply lage quantities to Europe and moving location of their factory 2 years ago.

[@grantballantyne1522]

I love the 107 I shoot them in my 6creed I have for a while now and they are great

[@barryd.thomassr.9156]

just yesterday 107 Sie. 29.6 CFE .718 group at 100yds

[@ehector68]

I love that Timber stock, I need one for Howa mini

[@kennethhoffman2521]

I shot those in a fast twist 243 win I had. Was ridiculously accurate and was very insensitive to changes in the particular application I had.

[@stevenallen8357]

My 6mm-06 Ackley is about shot out, so I have ordered a new barrel that I will send to cryo. This time I am going with a 284 Shehane-6mm wildcat. I have loved the 107s SMKs with H4350 in a 6mm Dasher. The old 6mm-06 Ackley liked H1000, I am hoping that the new 284-based round will as well.

[@balazra]

H4350 (AR2209) and H1000 (AR2217) is a rebranded ADI (Australian defence industries) powder. They are a long way behind production due to supply lage quantities to Europe and moving location of their factory 2 years ago.

[@hawaiiangunner]

I hope Hornady one day does a 6 ARC with a bi-metal case. I'd love to see how fast they could push that 107 in a small AR15 frame!!!

[@MrMagoo321]

Good stuff Gavin. I like how detailed you get. Very entertaining videos great job

[@user-nu8qm7cm5x]

Using 107SMK for 6mm ARC. 22" Satern Barrel gas gun, 28.8g LeverEvolution, CCI 450 primer, running about 2580 FPS when temp was 41^F. Seems to work well, Havent gone past 600 yds with it yet.

[@2kfbbuff]

How do you like your satern barrel so far? I recently purchased a 22" from grendel hunter. I only have 120 rounds through it so far but it seems to shoot well. Groups are getting tighter every range trip. Seems to like the 105gr factory ammo currently.

[@andyfleetwood2182]

.243ai?

[@michaelmeyers1827]

I havenvt loaded any I buy Hornady match ammo

[@joesashiify]

Would a 6mm bullet fit a 243 case? Still learning here.

[@waynemayle865]

6mm an 243 run the same bullets

[@tacticalrabbit308]

6mm Remington is another and 243win

[@oif3vetk9]

These seem to be the go to for the PRS crew I shoot with when we can't get Berger 105 hybrids. I haven't tried them but those that have seem to like them. I'm playing with 6 ARC hornady 105 bthp and N540 with CCI 400 primers. I run gas gun so anything under .875" I'm pretty happy. lol Oh, the ultradyne Apollo Max, that brake is insane! Tried it on my gas gun just for fun and wow! That rifle hardly moved! Had to laugh though, the brake was causing my ground tarp to lift off the ground when I fired. (It's a military rubberized "tarp" so it's not exactly light like a walmart tarp.) I'll be putting the EC tuner/brake back on but the ultradyne is going on my Dasher when that gets built later this month/early next month.

[@W5rr2nG]

I’ve had the best results in my 6 creed with 110 A-Tip and these 107s. I’ve shot every single bullet from 103-110 grain. 107 SMK is MONEY

[@W5rr2nG]

And I’ve trued them.. the G7 is higher than listed

[@Slate264]

@@W5rr2nG what did you true your g7 to be? Mine came out around .276

[@W5rr2nG]

@@Slate264i Got .280. Some say the numbers are for before they were pointing them. I’ve shot thousands of them though. The green box is slept on.

[@Slate264]

Hey Gavin, what was your experience with the BC for this bullet? Through testing, I found BC to be around .547 g1 Out to 1k or about .276 G7 and not as lows as you put for applied ballistic #s. Let me know what your experience was with it

[@briansupermag3918]

I would love to hear his findings too. Wonder if we can get him to try.

[@michaelmeyers1827]

I use 108 grain in my 6mm creedmoor

[@chrisfisher3900]

Mdt makes a specific 6mm arc mags

[@Ultimatereloader]

I need to get some!

[@MyLonewolf25]

I’d love to see this in 6mm creedmoor

[@treece1]

6bra, 30.5 imr 4350. 107 smk. 2740 fps. Very wide node

[@dconner0256]

You should try the Lapua 105 bullets. I have had good luck with them in my 6 dasher.

[@llwellynantel3932]

How would this work in a .243 win.

[@waynemayle865]

Ya need a fast twist barrel

[@winstonskafte5505]

Tikka builds 1-8 twist 243s if you ask .

[@zachwynn7670]

I'm curious to see these in ballistics gel

[@nickdadamo4133]

I’m currently testing this bullet in 6 br 1-8

[@Learning_2_shoot]

You mentioned a few 6mm variants. Why wouldn’t it work in a .243 Winchetser?

[@darrinwillis8564]

Why do you not mention the awesome 243 Ackley improved?

[@ardleopard]

Really looking forward to a 6Dasher review as well. 3100fps for the GT is more than respectable but I am curious how much that would drop in a 6Dasher and how small groups you can get. Have you tried the 110gr 6mm sierra match king Gavin? Looots of more BC for only +3gr. Wonder if that is stable and can hold together a small group though.

[@possumpopper89]

I’m curious about the MDT Timbr frontier stock. How soft is the recoil pad? I really like the looks of that stock.

[@loadmastergod1961]

Be curious on velocity with varget. I get 3018 with berger 109s out of my 7.5t 26 inch bartlein

[@KalebFarr]

Buy a new 1-8 243win 700 varmint to test please, then sell it to me cheap😂😂😂😂

[@piratetrooper87]

May I ask, what is the difference between 6GT, 6Dasher, and 6 Creedmoor? Sorry, I'm just new to those calibers.

[@zacharyporter5894]

The 6 GT and 6 Dasher are variants of the 6 BR Norma. The 6 creedmoor is a necked down 6.5 creedmoor which is basically a necked down 308 Win

[@redrock425]

​@@zacharyporter5894The 6GT was originally made out of the 6.5x47. It's not a 6BR derivative 😉

[@WHOTEEWHO]

👍👍💥💥💥

[@MrBoostin18]

6gt would do better with staball 6.5 over staball match.

[@dannymcclellan48]

What jump do you find the 107 shoots best at ?

[@cw2a]

🤘🏼🤟🏽👍🏼🇺🇸

[@2844killer]

Here's the comparison I'd like to see. 105 Berger Hybrid, 107 SMK, 108 ELDM, 109 LRHT. The dang Bergers are never in stock so curious of the 107 vs 108 since they're availible which is best and how the compare to the Berger 105s and 109s

[@calebwhiteknives]

These pills are absolute rockstars in the 6mm ARC. I’ve tested and shot them out to 1250, sub-moa out of my SPR: beastly!

[@ryanbach421]

What powder you using?

[@MartianLivesMatter]

I had this idea for a lightweight budget bolt hunting rifle in 6 ARC . I think it would be a good build video for the channel. 6.5 Grendal Howa mini action(6ARC if available, I think it was releasing in USA) 18" Carbon fiber barrel (Proof Research has an 18" sendoro light that is the same weight as their 16" sendoro) MDT LSS chassis Keep the HACT trigger and just add reduced weight trigger spring. True up action Flute the bolt and get it running smooth in action using lapping agent then nitride coat bolt and action. No muzzle device. Yeah brakes look cool and help with recoil for larger calibers but not needed with 6ARC and just add weight and noise. Plus not everyone has access to suppressors. I think showing the conversion from Grendal to ARC would be interesting even though its just chambering the new barrel. But truing the action and fluting the bolt all part of gunsmithing and machining so plenty of interesting bits to show. Also I dont think Ive seen you do nitride coating, or atleast send off to get it done. I know you like the Bat actions and most of them are nitride coated. And I know you love MDT chassis's. If my memory serves me you did do a build on the HNT carbon chassis but they're expensive.

[@rtabor5808]

I use the 107 smk in my 6cm and my 6BR and the 140 smk in my 6.5 cm with great results

[@williamcrist1887]

I have had great luck with the 107SMK in my 6mm Creedmore. I am about 1/2 way through my second box of 500 now. Load is H-1000 in Lapaua brass CCI450 primer running about 3100fps. I have only been shooting steel and varmints with it so far

[@balazra]

H1000 (AR2217) is a rebranded ADI (Australian defence industries) powder. They are a long way behind production due to supply lage quantities to Europe and moving location of their factory 2 years ago.

[@rolipoli3905]

6 dasher, 30.9 grains varget, peterson brass, 2845 fps, 205mar Sd 2.5 average group .25 @ 100