Originally Posted by elkhunternm
Originally Posted by DigitalDan
125 Hodgdon H4831 & H4831SC
126 Hodgdon SUPERFORMANCE
127 Winchester Supreme 780
128 NORMA MRP
129 Alliant Reloder 22
130 VihtaVuori N560
131 VihtaVuori N165
132 IMR, Co IMR 7828

Potential RL22 subs. H4831SC might be your friend if you can find any of that. Good luck. Been told that MRP and RL22 are the same powder.
Dan,I have 5 lbs of H-4831,is it possible to get about 2600 fps with a 175 Remington PSP. Also have IMR 7828.

Right now the 175 Rem is seated out to 3.2165" and I can go farther out if need be,this CZ has a long magazine and throat.


My sense of it, and little more: Was a little surprised you got the speed you did with the RL22 frankly, but given that I'd suggest that 4831 just might be a better call than IMR7828/RL25. They are, as I recall, a bit bulkier than either the 4831 or 22, so the question I'd have is whether or not you could stuff enough in there. You recall if you were compressing the charge much with the 22?

I've always held to the popular dogma that a caliber depth seating is pretty much a minimum and with the heavier bullets would be looking for solid neck tension if going long, just to keep things where they belong.

Last edited by DigitalDan; 03/09/13. Reason: Because I phouced up. Whazzit to ya?
I am..........disturbed.

Concerning the difference between man and the jackass: some observers hold that there isn't any. But this wrongs the jackass. -Twain