New Cal. New Build

[GaSwamper]

I've personally been getting 2800 fps average with a 90gd and 1680 powder with .7" grouping at 100yds... I have also been getting 2675 avg from a 100gr Accubond with MOA accuracy at 100 yds using the same powder... Ive got .4" grouping with 22.0gr of RE7 that still pushes a 90gr GD to well over 2600fps

100gr. Accubonds and 1680 really seem to shine across the board. I could actually get better numbers with these vs. The 90s without overgasing. But gotta luv what those cheap gold dots do to things they hit, definite man stoppers.

[MDWS]

So what are the ballistics like on this round? Does it shine with short barrels like 300 BLK or is 16" optimal?

We got 2400fps with a 90 grain Gold Dot out of an 8.2" barrel.

My ears were burning so I thought I'd chime in...

[GaSwamper]

We got 2400fps with a 90 grain Gold Dot out of an 8.2" barrel.

My ears were burning so I thought I'd chime in...

Well the man himself, welcome. Note that when the 8.2 was in my possession at was at the generosity of MDWS, I did not push any loads because quite simply it was not my upper to do so with. If any mistake on my part would have happened (yes they can happen)I wouldn't have been able to forgive myself. I stayed in safe zones with my loads, but 2400fps would definitely have been attainable. I expect the 10.5 " to give a nice boost.

[Dstrbdmedic167]

I think you'll have no issues getting close to 2600 with the GD and right powder combo from the 10.5" barrel


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[MDWS]

Well the man himself, welcome. Note that when the 8.2 was in my possession at was at the generosity of MDWS, I did not push any loads because quite simply it was not my upper to do so with. If any mistake on my part would have happened (yes they can happen)I wouldn't have been able to forgive myself. I stayed in safe zones with my loads, but 2400fps would definitely have been attainable. I expect the 10.5 " to give a nice boost.

I'm glad you enjoyed it, and thanks for providing the opportunity for others to shoot it as well. Your 10.5" should get to about 2500 safely with a 90GD if you play with some different powders.

Oh and thanks, happy to be here.

[GaSwamper]

Well look what came in the mail today! 10.5'' MDWS .277 Wolverine Barrel!

[Dstrbdmedic167]

Giggidy giggidy!!

[DutyUse]

Goodluck with the build. I wanna hear your thoughts after you've shot it for awhile

[GaSwamper]

And here she is 10.5'' .277 Wolverine Pistol. Only had time for a function check so far but she performed flawless. More tests to follow.

[Gaspipeshooter]

And here she is 10.5'' .277 Wolverine Pistol. Only had time for a function check so far but she performed flawless. More tests to follow.

That didn't take long! Looks good!

[GaSwamper]

Well I been piecing this thing for a while so she was pretty much sitting ready for the barrel. After getting to use the 8.2'' upper for a few weeks the lower was battle tested so to speak and already had some baseline loads ready.

[GaSwamper]

Quick range test today before the afternoon bowhunt. Thrilled, numbers are on track and was shocked at a 100yd group I was able to pull off after a sight in at 50yds. This is a new virgin barrel btw. For a 10.5'' I really wasn't expecting it this tight. Rounds tested were as follows.
90gr GD, 22.8gr AA1680, WSR primers
Muzz. Vel.
2478
2476
2483
2498 Confident at 23gr I can bust 2500fps

[GaSwamper]

Testing update. Several rounds im still developing but these two are done for now and happy with the results.
90gr Gold Dot, 23.0gr AA1680, OAL-2.14, Muzzle Vel. Av.- 2568fps
95gr TTSX 22.3gr AA1680, OAL-2.23, Muzzle Vel. Av.- 2539fps
The gold dots could be pushed faster but I like the 100yd expansion at this speed, the last test yielded a quarter size slug and retained 85gr of 90gr.. I fear any faster would fragment. The 95's also gave me .5'' grouping at 100yds.

[mustangfreek]

Damn..that thing turned out to be a good little shooter it looks like..you'll have to keep us updated how it holds up,..

[GaSwamper]

Thanks Mustang, refined my 95 TTSX load after looking at them they were too close on the lands, I like this load a little better.
95 TTSX 22.0gr AA1680 CCI 450 primer OAL 2.19 Muz. Vel. 2528fps
Pic of expansion test at 100yds.