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jetinteriorguy · November 20, 2019, 05:21 PM

Today I shot ten rounds of each of these loads over the MagnetoSpeed. The heavier load definitely exhibited better accuracy. The interesting part is that the MV is identical to the original load even though it's .9 gr more powder. It also didn't seem to exhibit any more increase in effort to lift the bolt than the lower charge. I also measured the case length on the fired rounds and compared to full length sized cases they averaged .003"-.006" longer. This is for both charges. As far as case life, with the original charge I have fired at least 600+ rounds using the same 100 cases and the primer pockets all still pass a go-no go gauge no problem. One other interesting thing, this charge is only .1gr heavier than the load I shoot in my AR10. The difference is the AR10 ammunition is loaded quite a bit further into the case in order to fit in the magazine, but it's also using Nosler brass which is a little larger case capacity and I believe also a harder brass.

November 20, 2019, 05:21 PM	#25
jetinteriorguy Senior Member Join Date: April 28, 2013 Posts: 3,173	Today I shot ten rounds of each of these loads over the MagnetoSpeed. The heavier load definitely exhibited better accuracy. The interesting part is that the MV is identical to the original load even though it's .9 gr more powder. It also didn't seem to exhibit any more increase in effort to lift the bolt than the lower charge. I also measured the case length on the fired rounds and compared to full length sized cases they averaged .003"-.006" longer. This is for both charges. As far as case life, with the original charge I have fired at least 600+ rounds using the same 100 cases and the primer pockets all still pass a go-no go gauge no problem. One other interesting thing, this charge is only .1gr heavier than the load I shoot in my AR10. The difference is the AR10 ammunition is loaded quite a bit further into the case in order to fit in the magazine, but it's also using Nosler brass which is a little larger case capacity and I believe also a harder brass. Last edited by jetinteriorguy; November 20, 2019 at 05:47 PM.