txsendero
Well-Known Member
Yes
Norma 270 wsm cases necked down. Rem 9.5 mag primers. 140 Berger. 2.432" to ogive. 57.2gr H4831sc. most accurate load.
RL-17 is good on accuracy too with the 140's but is more temp sensitive. About 56gr.
I tried Retumbo, H-1000, Ramshot Magnum, and H4350 all with the Berger 140's. The first 2 listed were the most accurate in my rifle producing .25-.3moa out to 300yds on paper. RL-17 gave the best accuracy/speed combo but in my opinion if you are shooting with a 24-26" barrel H4831sc is the ticket. Its a little slower but at 300 yds i stopped shooting when 7 shots were inside 3/4". Very good load.
Thanks MuleHunter, any idea of the velocity range you were getting with the H4831SC?