kneelingatlas Posted November 24, 2014 Share Posted November 24, 2014 http://blog.westernpowders.com/2014/11/powder-position-and-pressure/ I just read this article on the Ramshot blog, anyone have any experience to share? Link to comment Share on other sites More sharing options...
njl Posted November 25, 2014 Share Posted November 25, 2014 If you have a chronograph, it's easy enough to measure. I did this one day a while back with two .45acp loads: .45acp 200gr Precision FP (moly coated lead), 4.8gr WST 1.195" OAL, CCI LP.I tested these in my 21SF by pointing the gun up (or down) before each shot.UP: I did 2 strings...just to be sure, and got 840 and 849 fps averages.Down: 758 fps average.45acpZero 185gr JHP, 5gr WST, 1.195" OAL, CCI LPI tested these in both my 21SF and 30S.21 UP: 852 fps21 Down: 770 fps30S UP: 804 fps30S Down: 707 fpsWith this load, ES and SD were much smaller for the UPs than the Downs.In all of these, there was a very noticeable difference in recoil between the ups and downs. I'd heard of position sensitivity, but I was amazed by the size of the effect. Link to comment Share on other sites More sharing options...
BeerBaron Posted November 25, 2014 Share Posted November 25, 2014 that's one more good reason to load open major and have a nice full case of powder!! Link to comment Share on other sites More sharing options...
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