bobeyerite
New member
DZ,In all the books I have. I found only 1 formula for 1255 Fps and that uses 30.5 grains HS-7 powder in a Federal Paper Base case. That powder has not been made for years. It has been replaced by Longshot pretty much. That is why I said you have to reduce to 1 1/8 ounce to get the speeds you want. Longshot produce's to much pressure to be produce a safe heavy load like 1 1/4 ounce in 16 gauge. The book I found that formula in was printed in 1995, so It really tells a story there.---Bob