Jimster716's .224 Valkyrie Build Thread

[God Bless America]

... 6.8 Grendel....

Funny you should write that. 6.8 SPC is not the same as 6.5 Grendel. Yet, knowing that, I absent-mindedly loaded five 6.5G rounds in a 6.8 mag last Sunday at the range. I ran them through anyways, and it fed flawlessly. ASC mags both. Might not work for >5 rounds, I have not tried.

[gobler]

Ok..getting a little confused.. for a .224 what mag do I need???

"The 2nd Amendment is a right, not a suggestion"

[97F1504RAD]

Ok..getting a little confused.. for a .224 what mag do I need???

"The 2nd Amendment is a right, not a suggestion"

6.8SPC Magazines

[97F1504RAD]

Jimster, any groups yet?

There's a new barrel out that I haven't seen before. Not too bad a price:

http://palmettostatearmory.com/bsf-2...r1520v001.html

Maybe new on palmettos sight but it’s been out for a bit.

Here are a good selection of .224 barrels https://www.rainierarms.com/barrels/...rie/?limit=all

There are a lot of very pricey barrels out and that BSF is sweet but not sure I can bring myself to spend that much .

[Californio]

How much does your rifle weigh?

My hunting buddies that have purpose built small varmint AR's with 24" bull barrels and 50mm objective scopes, in .20 practical and .223 Rem, they weigh in about 12.5-13lbs.

Also LWRC made Six8 receivers which also uses a special Pmag for a better functioning 6.8 experience, does the 224V suffer from the same issues in AR15 receivers that the 6.8SPC did?

I was reading an interesting article on the .224 and barrel length.

https://rifleshooter.com/2018/02/224-valkyrie-effect-of-barrel-length-on-velocity/

I figure most rifle and barrel mfr's take the position that 18" firing the 90gr SMK has sufficient muzzle velocity and acceptable drop and drift to longer barrels without having to lug around a 24"+ barrel in an AR pattern. I have other AR's so just went with the longer barrel just to eek out some more velocity for 1,300yds+ though I realistically have no idea when I'll have the opportunity to shoot that far.

[SonOfaDI]

I didn't realize it until I got it but it's the suppressor size so its inner diameter is a bit bigger to accommodate a can. It's 18" long and I can't think of any reason why anyone should need 18" of picatinny rail (would've been a smart way to save weight by having rails at each end only). I have another Midwest handguard on a 5.56 and I have no complaints about their products. Well made and affordable.

Angeles Shooting Range goes up to 600yds. I do want to check out the 1,000 yd public range at California Tactical Academy in Piru.




Yes, the only things that are different are the .224 barrel, 6.8 SPC BCG and 6.8 mags.

Hope 2 c u at Piru. Was there the last few Saturdays. Was stretching the legs on .308 and my .223. Left a few marks on the red round with the black center at 1kyds. Son hit the black, dang show off kids....

[sigstroker]

How much does your rifle weigh?

My hunting buddies that have purpose built small varmint AR's with 24" bull barrels and 50mm objective scopes, in .20 practical and .223 Rem, they weigh in about 12.5-13lbs.

Also LWRC made Six8 receivers which also uses a special Pmag for a better functioning 6.8 experience, does the 224V suffer from the same issues in AR15 receivers that the 6.8SPC did?

What issues?

[Californio]

Could be just marketing but it was my understanding it was done for Pmags.

begin paste

"Darren Mellors, the head stud at LWRCi, has released a TON of info on the new Six8 configuration. Six8 is basically a consortium made up of LWRCi, ATK/Federal, and Magpul. Their focus for the past two years has been to optimize an AR-type (NOT AR-compatible) rifle chambered in 6.8 SPCII, a caliber-specific polymer magazine, and milspec ammunition as an integrated system to fulfill a foreign military order. The Six8 guys tested the holy hell out of every aspect of this integrated system and now, finally, the designs are frozen and the companies involved are moving to initial production.

The Rifle
LWRCi has developed a new Six8 rifle that is completely optimized for 6.8 SPCII. The extractor/ejector are new, the ejection port is 20% larger in front to eliminate any problems with ejecting the larger (that 5.56) 6.8 casings, and the magwell has been enlarged to fit a 6.8-specific magazine that is longer and wider than a 5.56 magazine. The new rifle will initially be available in the UCIW (Ultra Compact Individual Weapon) configuration, and the UCIW is the version that will fulfill the 35,000 unit contract for the foreign military entity. All other barrel lengths (12.7, 14.7, 16, etc) will eventually be available as well. You will also be able to buy Six8 upper/lower sets.

What you won't be able to do is buy a Six8 lower and mate it to your standard AR upper. So, the Six8 is basically an intermediate step between a 5.56 AR and a .308 AR. Before the gnashing of teeth begins along with the cry that "they should have just built a rifle around the 7mm Murray!" note that the aforementioned contract drove all the requirements and the purchaser decreed 6.8 would be it.

The Magazine
Magpul is, as we speak, having the mold textured and plated for a brand new Six8 PMAG. This magazine looks very similar to a windowed version of the 5.56 M3 PMAG (which has yet to be released) but is wider, longer, and taller to allow a full 30 rounds of 6.8 ammo to stack correctly for optimal feeding. The plan is to release the mag for commercial sales as soon as possible - even before the LWRCi rifles are available - so guys like me can stock up before anything happens to preclude said stocking up…

Obviously, the Six8 PMAG will only work with Six8 lower receivers.

The Ammunition
Here's where things get really interesting. ATK/Federal has developed an optimized 90gr 6.8 SPCII load to fulfill the ammunition portion of the foreign military Six8 contract. This round has tested extremely well in ballistic gel for terminal effects and has outstanding barrier blind characteristics. Even out of the UCIW's short barrel it is a rather large step up in effectiveness when compared to 5.56. It's not clear whether this same bullet will appear in their commerical Six8 loading. What is clear is that ATK/Federal has dedicated and ENTIRE LINE to producing 6.8 SPCII ammunition. That, according to Darren, means an annual production run of 150 million rounds."

What issues?