waterboy411
Beginner
- Jan 15, 2005
- 23
- 0
Hi all. Been a while since I've posted here. Anyhow, I'm needing a starting load for Alliant RL-22 in the 7mm SAUM. I'm shooting 150 Nosler ballistic tip bullets, and using Winchester WLRM primers. My Nosler #5 manual has data for the 160 and 175 grain bullets using RL-22, but not for the 150 grain bullets. I have already tried RL-19 and H4831(regular cut) with good results. Just wanting to try RL-22 is see how it does. The H4831 loads seem to be a bit more consistent, but both are accurate. BTW, these loads are being fired in a Ruger 77 mark II(22" barrel) 7mm SAUM rifle. The loads I have tried so far are 58.0 grains with RL-19, and 60.5 grains with H4831, both with the 150's. The RL-19 loads seem to have a "sharper" recoil for some reason. A shooting buddy of mine helped me zero my scope in a couple of weeks ago, and he observed the same recoil differences as I did. He also noticed a difference in report of some of the RL-19 loads. Some loads sounded different than others. Any thoughts on this? I've read on the net about RL-19 sometimes having wide swings in pressure, and being especially temperature sensitive. These RL-19 loads were all loaded at the same COL, same primer lot, and same powder can. I've also read that RL-22 is less temp sensitive than RL-19, but I can't confirm that with personal experience. Thanks in advance for your help. Howard. :?: