TX35W
When you stuffed in all the 15.5 it would hold under the 250 Speer, what kind of velocity did you get?
And how many grains did that stuffing end up being? I was going to jump into some work in my Whelen AI and 9.3x62 but will take all the baseline data I can get. Good words about the lack of pressure with a very full case. This is what I have seen so far in the .308 Win with 155 and 165 bullets.
Thanks in advance,
Rex
58 grains fit in the virgin stuff but I think 60 fit in the fired case (haven't gotten around to loading 60gr yet).
Velocities at 58grains were around 2450 in a 20" and 2540 in a 26" but both those guns have pretty short throats so would definitely be slower in a SAAMI throat.
Judging from the velocity progression I saw, I would guesstimate that 60grains of RL15.5 (more or less) would do about what 58gr of RL15 does (more or less) in a standard Whelen case under a 250. But that is just guessing.
Will hopefully get some more data this week.
