20BR Loading info
I will assume you have your case forming down pat!
I use only use V V N135 powder, I started off with 31grs. and got a crono reading of 4127fps. with a 39gr. sierra an thought, "hmm", that seems a little HOT so I backed off .3ths of a grain for a 30.7gr. groups were good around
.260 . I tried the 40 grain V-Max and they were OK? Also tried the Nos. 40gr.
and they were tad better than the V-Max. Something I should mention is that I measured loaded rounds neck diameter and the Nos. 40 grainers were
.0003ths bigger?
I was trying to get the best load and decided to bump the load of V V n135 to 30.8 and got a group (with 39gr, Sierra's) of .141 I thought that was good enough! Forgot to add that 30.8 of 39gr. Sierra's ave. was 4060fps.
Best to ya
Jack
Last edited by OMJ; 06-02-2008 at 12:20 PM.
Reason: added
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