03-08-2011, 12:45 AM
The 8 twist will stabilize just about any of the bullets suitable for the Grendel without issues, including the 140's. However...weights above 123 really push the cartridge. While some people have had success with the 129's and 130's, most think that the 110-123 range is ideal.
The 120 AMAX is not the best choice, its got a blunt ogive in comparison to the 123 AMAX which is specifically engineered for the Grendel. That 123 bullet shoots REALLY well in almost every Grendel that I've heard about. It's a "go to" bullet for people having problems finding accuracy.
For really long range stuff, beyond 600 meters, most people find the 108 and 123 Lapua Scenars to shoot the best. They are the same bullet profile, differing only in 15 grains of weight.
All that said, my best groups, .25 5 shot groups at 100 yards, were all either 100 or 120 grain Nosler BT's over BLC2, a powder which burns very dirty for me. I shot them well out to 700 yards, but never tried them at longer range, never having the opportunity.
I'll be the first to admit that I did not test the Lapuas anywhere near as extensively as I did the Noslers, since I had no where local to buy Lapuas and the Noslers shot so well!
Bill
The 120 AMAX is not the best choice, its got a blunt ogive in comparison to the 123 AMAX which is specifically engineered for the Grendel. That 123 bullet shoots REALLY well in almost every Grendel that I've heard about. It's a "go to" bullet for people having problems finding accuracy.
For really long range stuff, beyond 600 meters, most people find the 108 and 123 Lapua Scenars to shoot the best. They are the same bullet profile, differing only in 15 grains of weight.
All that said, my best groups, .25 5 shot groups at 100 yards, were all either 100 or 120 grain Nosler BT's over BLC2, a powder which burns very dirty for me. I shot them well out to 700 yards, but never tried them at longer range, never having the opportunity.
I'll be the first to admit that I did not test the Lapuas anywhere near as extensively as I did the Noslers, since I had no where local to buy Lapuas and the Noslers shot so well!
Bill