Hey guys... wanted to post this data for anyone who may be interested. I worked up a load for my rifle. My grendel did not really like this round, but rather likes the 120-123 gr rounds instead (will post this in another thread.)
My rifle: Sabre Defense 20" bbl w/ a 1 in 9 twist, DD upper, Adams Arms piston system, Bushnell elite 4200 6-26x50 w/ illum. Mil-Dot reticle.
Data:
I wanted to work up a load with the Ramshot TAC for the 130gr Berger round, but couldn't find much data. I started with a low amound of powder that I was sure was safe and worked my way up based upon data from multiple 129 gr rounds that the TAC was used with. This is what I found.
Grains/FPS
24/2117 FPS
24.5/2140 FPS
25/2195 FPS
25.5/2240 FPS
26/2260 FPS
26.5/2300 FPS
27/2350 FPS
With all of the powder used above, I was carefully watching my brass (which was hornady amax brass that had already been used about 4-5 times) and I had absolutely 0 signs of over pressure. The best group for my rifle was the 27 grains since my barrel likes around the 2350fps mark, although at best it was a 2-3 inch group at 100 yards. All of the rest of the rounds were ALL over the place, didn't have any grouping - i'm talking about 12 inch spread most of the time, looked like a shotgun hit it. I was using the Caldwell Lead Sled (shooting rest) while shooting in the prone, so they were very stable shots.
Hope this helps some of you in determining your load with the Ramshot TAC!
My rifle: Sabre Defense 20" bbl w/ a 1 in 9 twist, DD upper, Adams Arms piston system, Bushnell elite 4200 6-26x50 w/ illum. Mil-Dot reticle.
Data:
I wanted to work up a load with the Ramshot TAC for the 130gr Berger round, but couldn't find much data. I started with a low amound of powder that I was sure was safe and worked my way up based upon data from multiple 129 gr rounds that the TAC was used with. This is what I found.
Grains/FPS
24/2117 FPS
24.5/2140 FPS
25/2195 FPS
25.5/2240 FPS
26/2260 FPS
26.5/2300 FPS
27/2350 FPS
With all of the powder used above, I was carefully watching my brass (which was hornady amax brass that had already been used about 4-5 times) and I had absolutely 0 signs of over pressure. The best group for my rifle was the 27 grains since my barrel likes around the 2350fps mark, although at best it was a 2-3 inch group at 100 yards. All of the rest of the rounds were ALL over the place, didn't have any grouping - i'm talking about 12 inch spread most of the time, looked like a shotgun hit it. I was using the Caldwell Lead Sled (shooting rest) while shooting in the prone, so they were very stable shots.
Hope this helps some of you in determining your load with the Ramshot TAC!
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