Re: 270 Winchester Ackley Improved
Originally Posted by darndt
I will have my 270 ai build back next week. Going start load work with rel 22 and 7828 and 130 and 140 pills
I've found R-22 and Imr 7828 worked the best with large rifle mag primers like CCI 250
130's don't have a good BC but they go pretty good with R-22 62 gr. 140 SPBT's 60 gr of R-22 and 150's with 58 gr The 7828 again with the mag primer uses about 1.5 grains more for each respective pill weight.
Of course start a couple of grains less on the powder and work up to these amounts.
.270 Ackley improved 29 inch 1.250 dia. target barrel 7mm STW 28 inch 1.250 target barrel. I also love my .458 mag for varmints and the biggest game in the world.
Last edited by budlight; 01-25-2011 at 12:38 PM.