Barnes 127 grn LRX data

[LRRPF52]

Barnes 127 grn LRX cci SR CFE223 32grn 2644fps . .4" at 100. Awesome out to 400. Am out of #41 primers could be better. 24" 1-8 twist SS barrel.

Sorry I didn’t see this earlier.

That load is pushing it a bit even for a 120-123gr cup/core bullet.

If you loaded it long in a bolt gun, you might see sticky bolt lift.

For an AR-15, there isn’t enough mag length allowable to load 32gr of CFE223 under the 127gr LRX and still stay within SAAMI MAP.

2644fps is another indicator of higher pressure with a 127gr monolith.

When I loaded 32.2gr of CFE223 under the 123gr SST at 2.250” COL in the Howa Mini bolt gun, I got 2658fps., which was a 53fs jump in speed over the 31.9gr load prior to it.

Up to 31.0gr, I had very predictable velocity increases for every .3gr of charge weight.

When I loaded the 129gr SST, I was getting sticky bolt lift at 2572fps.

2644fps with a 127gr LRX is screaming out of an AR-15, as a result of excessive chamber pressure.