m796rider Wrote:I'm glad DoD can use that extra 5% or whatever to defeat barriers, etc.

As a civilian shooter who wants a good general purpose AR15-sized rifle, I'm just not there yet in terms of giving up all my 6.5G handloading gear and affordable ammo to gain that extra little margin of performance. I'm also not very interested in a 14lb match rifle with a 24" barrel and a big scope on top.

It does sound like the sweet spot for DoD is an 18" barrel, as Barrett seems to be contracted to supply the REC7 DI in that barrel length.

hill37 Wrote:At the start of the Valkyrie craze Barrett had a Valkyrie sized Fieldcraft that disappeared when the Valkyrie didn't pan out. Maybe they will bring it back in 6mmArc. I can stop bugging Wilson Combat for a 243 H'mmer.

Quote:Lantac LA-SF15™ 6MM ARC Chambered Rifle & Dedicated E-BCG®
Lantac is pleased to announce the release of its range of 6MM ARC chambered rifles and dedicated E-BCG®
For the past 2 years Lantac has been working closely with Hornady Manufacturing and PROOF Research undertaking testing and development of products that utilise the new 6MM ARC ammunition in a variety of bullet weights. Lantac was one of the first companies to become involved with this new caliber as part of a funded military research project and has conducted extensive evaluation and development work in that time.
Lantac’s new LA-SF15 6ARC 18’’ Rifle+1 gas system delivers 2629 FPS at muzzle with 2457FPS at 100M (109.36 Yards) and 1408 FPS at 800M (874.89 Yards). Energy is 1657 Ft-lb (2246 Joules) at 100M (109.36 Yards) and 475 Ft-lb (644 Joules) at 800M (874.89 Yards) approx.
Lantac has also developed a more compact 14.5’’ Intermediate gassed system that delivers 2483 FPS at muzzle with 2315 FPS at 100M (109.36 Yards) and 1302 FPS at 800M (874.89 Yards). Energy is 1285 Ft-lb (1742 Joules) at 100M (109.36 Yards) and 407 Ft-lb (551 Joules) at 800M (874.89 Yards) approx.
The velocity of multiple barrel lengths was tested to create a clear picture of 6ARC’s capabilities.

grayfox Wrote:Tell forster I'm gonna be in for this cal.

rickt300 Wrote:Well I have to say I will end up with an upper in this new 6MM. Felt the same way about the Grendel. Wonder who will be out there doing autopsy's for us on bullet performance?

am4966 Wrote:Maybe this will mean we’ll get a polymer mag? Since you’d think if it’s made for the 6mm a 6.5mm would work for the Grendel too.

It’s crazy how all of this has hit the market, me personally I wouldn’t buy any barrel That utilizes a gas port location that’s used in standard AR’s of 556/6.5 location. This platform was developed from the ground up and what’s being used those involved is what you should use.

Lemonaid Wrote:BFT any estimates on when a Monster ARC will be available and at what price?

BluntForceTrauma Wrote:My MONSTER 6mmARCs will be priced the same as my 6.5 Grendels. For example, a MONSTER 12 6mmARC will be $133 and a MONSTER 20 will be $149 — at a quality and accuracy level giving nothing away to Faxon and Ballistic Advantage.

Unfortunately, availability is way out there. I guess when you're not Barrett even your reamer orders get put to the back of the line. Seems these vendors had secret advance notice and have already been working on it for 8 months, according to my reamer maker. I first heard of it with the rest of you guys when somebody posted the 6mmARC SAAMI print. Anyway, reamer is due in a month and a half and then, what, two months — at least — after that to complete barrels?

In the meantime, hey, my new design MONSTER UltraLite Three-Prong Flash Suppressors came in!

OneHitWonder Wrote:Since I am low on ammo, and new to the 6.5 Grendel anyway, I may go 6mmARC.

I have found the advertised velocities, of 6.5 Grendel, way below the claims. Even reloads I can’t push much past factory without pressure signs. The pills are not as wide a selection as I would like that work with OAL. I couldn’t get 95gn TNT’s to group. So I was stuck with 123’s that did.



All I lose is a barrel and a die set. The Monster barrel deal is almost too good to pass up. I would love to hear some real world numbers on 85gn to 110gn velocity, per barrel length, and accuracy. I suspect the 12” barrel will be too short to get full powder burn. Being a smaller pipe with similar volume case. Might just be the perfect 14.6” pinned combination.

Well I have to ask mods, that shut my thread down in the reloading section to move it here. There is current product linked. BA and Brownells/Faxon barrels for sale now. That way we can get the Johnny be Quick’s to start load developing.