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There's very little data out there on AR-Comp and 95 gr V-MAX in Grendel. I've found a load my 20" 1/9 Grendel really likes, at 29.2 gr of ARComp pushing the V-Max to 2857 fps. That might be OK, but definately seems on the high end of velocity for an AR15. Thoughts on this? Brass seems OK, but that doesn't mean much.
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4x P100 -
FWIW, Speer is saying you can run 30.3 gr, for a 90 gr bullet.
4x P100 -
"Down the floor, out the door, Go Brandon Go!!!!!"Comment
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So you went 1.1 grains lower for an additional 5 grains of bullet weight of a similar bullet design?
Your velocity is a little less than the book number you link?
I wouldn't be concerned, but I would say it is a max end load.
You would need to reevaluate that load in the summer heat.Comment
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I have a 95 Vmax load for my 22" RAP, bolt action.
30.8 gr of Xbr, shoots 2819, 0.695 from a 22" barrel.
However, using that as a quasi-calibrated starting point for comparisons...
In order to show your actual velocity (well, close, 2848 as modeled) from 20" barrel, I get a Pmax of 58,600+ psi...
So, yeah, hot by my estimates (grt loads).
For a 20" AR, 95 Vmax, I would suggest looking more at the range of 2780-2800, using
H335 (mid-high 30.x) and /or Xbr (low-mid 30.x),
These 2 combo's are where I've ended up with Vmax's and accurate, from 20" (both AR and Howa 20) and Pmax estimates around 51,000 psi.
Much nicer on the pieces/parts."Down the floor, out the door, Go Brandon Go!!!!!"Comment
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