Originally Posted By telsonman:
Alright, so I finally found the rifle that I had been looking for, a Gunsite scout in 308 with the laminate stock, stainless barrel, and flash hider. This will be used for a woods gun on deer, hogs, and coyotes if they run through.
Anyway, I reload my own 308, and my go to for my savage 10 is a 165gr Sierra game king. Now I'm curious what grain works best in the Gunsite just so I don't have to waste a ton of time reloading 165s and 150s. I had a savage that I couldn't find the right load for, and I tried everything. It ended up like federal blue box 150s from Walmart. Strange. So if someone here can steer me the right way on of the rugers prefer the 150s or the heavier 165/168, then it would help me out tremendously.
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AFAIK, most Ruger GSRs were made with a 1-10" twist barrel. By all means verify this, and report back with cited info.
1-10" ROT is ideal for bullets about 150gns, all other things being equal. It is common for expert handloaders to make ctgs which will greatly exceed, in accuracy, modern factory made ctgs. Milsurp ctgs, are usually well below commercial ctg level of accuracy.
FWIW, I make "generic, Milsurp ctgs", using a chronograph to determine bullet velocity with handloads compared to genuine Milsurp ammo, as well as stated official bullet velocities. I spend a "good deal" of time and effort in case preparation, and it pays off.
Suggest you shoot your Ruger GSR rifle with many suitable types of ammo and take careful notes. Eventually the ammo your rifle "likes" will become apparent.
Stock up.
At the same time, strongly suggest trying out different types of optics. Likely the proper choice of optic will serve better than the "exact" bullet.