Re: Reloader 19 Powder in .300 RUM????
R-19 is ok with the lighter bullets. I used 87.0gr behind a 150gr Mk. It shot .75 to 1.25in groups. I found R22 to shoot better.
150 to 155gr bullets: 82.0 TO 91.0
165 to 168gr bullets: 80.0 to 89.0
One Shot,One Kill.