Not much, I've always used it, I have a few pounds of IMR 8208XBRThat's a pretty fast powder for that combination. Do you have any slower burning powders?
ThanksIMR 4831 would be a better choice. Probably between 50 and 52 grains.
Yeah I'm not sure why I want to shoot them but I've always like the bigger bullets.That 153 has the longest bearing surface any of the hybrids, would definitely go for slower powders
