I have also used H414 (30 06) R19 (.243 and 300 Win) BLC2 (222 Rem) and haven't had the same issues I had in my 7mm with R22. Admittedly I have spent the most time at the bench lately with the 7 and I have gotten pretty picky. Maybe the sometimes severe summer humidity is another factor in my experience as well more likely is that the others haven't seen as much variety in conditions so I haven't been as sensitive to the sensitivity. I'm not saying R 22 is bad I'm just saying that for me Retumbo seems to work better.
Mmmm.....I have never seen this....even shooting summer to winter back here.
Perhaps me calling it temp sensitivity is incorrect or premature. Maybe blaming it on the powder at all is wrong it is after all a sample of one rifle, shooter and load combination. The rifle shot well with the R22 140 TTSX combo, it accounted for my best buck ever, longest shot ever, best 200 yard group ever and my FIL's best also when I had him shoot my rifle at a distant buck. It worked pretty darn well overall, it still shot good, I just had to tweak it a couple clicks here or there as time went on. It got frustrating.
RL 22 is a fine powder it has worked really well for a lot of years for many people (including me) in the 7 RM and others, or they wouldn't sell so much of it. I wasn't trying to bag on anyones favorite powder, just sharing my experience that my rifle does shoot better more
consistently with Retumbo and the 150's.
I guess the bottom line is I don't
know for certain if it was "temp sensitivity" that was the issue all I know is that it was sure frustrating for me adjusting POI all the time whatever the cause.
Sorry if I offended anyone.
