Right now I'm shooting 147 gr sns casting coated, NLG flat points in mixed brass over 4.0-4.1 gr of WSF
Recoil is light, and I chrono'd them running right around 940 fps out of the storm lake 9mm conversion barrel I have in my m&p 40
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147 gr X-treme bullets plated RN
4.2 gr CFe Pistol powder
Winchester small pistol primers
Avg. 952 fps
COAL: 1.125-1.130
Light taper crimp
147 gr SNS Casting RN
4.0 gr CFe Pistol powder
Winchester small pistol primers
Avg. 942 fps
COAL: 1.125-1.130
Light taper crimp
Both loaded on my Dillon XL650
Last edited by NickDrak; 06-19-2016 at 01:15 AM.
a) It's hard to measure without an optical comparator. Shout out to my QA geek homies. If you're doing it with hawksbill calipers, be sure to use the thin edge at the tip, and try to get the calipers as level as you can, and measure at the very end of the case. It's a taper.
b) That's a little crimped. That's not necessarily a problem and I get a similar depth on FMJs and am happy with it. With plated bullets, you might see some deformation which detracts from accuracy. If you have an inertial bullet puller, pull one of the critters you measured at 0.373" and see if you're creating a cannelure. If so, back the last die off an eighth of a turn and repeat.