I'm using IMR 4451 in one of my 6.5x47's with 140 Hybrids. It's kicking H4350's butt and I've been religiously using H4350 for the 6 years i've been shooting my two 6.5x47's. With 1 gr extra, it's running 100 fps faster, SD's are single digit and accuracy is .36 moa at 1010 yds; on multiple occasions. Not selling my H4350 but it's getting shelved in the back.
Alan
