A top competitor at my club shoots 240 LSWC over 5.2 Bullseye in magnum cases with CCI MAGNUM primers.
Sounds crazy, but I tried the load both ways, reg and magnums, and magnums win.
I believe the magnum primer ignites the powder better in that big case.
3/13/2015 LSWC 240 Bullseye 5.2 LO 703.0 HI 753.0 AVG 731.3 ES 50.00 SD 9.89
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-jwk-
US Army '72-'95
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