Rolex Posted March 17, 2013 Share Posted March 17, 2013 Ran out of Zero 125 JHP's. Have been loading these at 1.160 OAL for my open .9 using SVI mags. Now I just got Sierra 115 JHP's, and can not load them as long- profile of bullet head is shorter than the Zero's. SO who has a starting OAL using 115 JHP's? I use True Blue at 7.8gr to make a nice 175pf. Just looking for a starting OAL- Link to comment Share on other sites More sharing options...
DRobson Posted March 17, 2013 Share Posted March 17, 2013 Shorten your OAL the difference between the 124's and the 115's. At least the case volume would be the same. I did this when going from my FMJ to JHP load and if worked great. Link to comment Share on other sites More sharing options...
captray Posted March 19, 2013 Share Posted March 19, 2013 I'm running 115 gr MG JHP at 1.167OAL over 8.7 gr of True Blue. Expect to chrono at 1550 FPS extrapolating from 8.1gr /115 ( 1426 actual) and 124 gr data. Have been shooting this for 2 months now. Comp likes extra gas and load runs cleaner than before. Will give you some rounds to test if you want. Ray Link to comment Share on other sites More sharing options...
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