Hello prdator. 10-4 on your review and test results. I live in extreme northwest North Dakota and I know from experience, like you, RL-22 is very impressive from the hot days of summer through our -30F winters. This powder really is impressive out of my Browning X-Bolt chambered in .280 Remington. From my sled it'll shoot 1" to 1.25" groups at 200 yards with 140 gr Berger Hunting VLD's in summer or winter with RL-22. In the 30+ years I've been shooting \ reloading I've learned that I can depend on RL-22.
Happy Shootin'
NDMarksman
