T tayhot Well-Known Member Joined Nov 26, 2009 Messages 169 Location NM Feb 15, 2012 #1 Looking for loads for 338 rum, specifically for 300 gr Bergers. I have A few powders to use, retumbo, h1000, and 7828
Looking for loads for 338 rum, specifically for 300 gr Bergers. I have A few powders to use, retumbo, h1000, and 7828
B bigngreen Well-Known Member Joined Nov 24, 2008 Messages 8,830 Location SW Montana Feb 15, 2012 #2 I'm loven 90.5 gr of Retumbo right now for just over 2800 FPS with a 300 OTM in a 28in barrel.
royinidaho Well-Known Member Joined Jan 20, 2004 Messages 8,950 Location Blackfoot, Idaho Feb 15, 2012 #3 bigngreen said: I'm loven 90.5 gr of Retumbo right now for just over 2800 FPS with a 300 OTM in a 28in barrel. Click to expand... Hmmmmm, two inches of barrel approach ~32FPS/inch not considering difference between Retumbo and 50 BMG and slight difference in charge weight and rifle/barrel differences. Interesting!
bigngreen said: I'm loven 90.5 gr of Retumbo right now for just over 2800 FPS with a 300 OTM in a 28in barrel. Click to expand... Hmmmmm, two inches of barrel approach ~32FPS/inch not considering difference between Retumbo and 50 BMG and slight difference in charge weight and rifle/barrel differences. Interesting!
Outlaw6.0 Well-Known Member Joined Feb 18, 2010 Messages 3,531 Location Gillette, WY Feb 16, 2012 #5 I'm running 90.0 grns Retumbo w/ 300 SMK. (sorry, Bergers are too long for my mags). Velocity for 5 measured 2780fps w/27 bbl.
I'm running 90.0 grns Retumbo w/ 300 SMK. (sorry, Bergers are too long for my mags). Velocity for 5 measured 2780fps w/27 bbl.