Guys first I would like to thank you for all your help. Just when you think you figured it out another question pops up.
I am shooting an 1893 Carcano with gain twist rifling. When I shoot the original bullets from pulled cases it shoots very well, and is accurate. When I shoot 160 gr lee bullets size to .268 the bullets strike sideways at 25 yards. I am using 5744 with velocity around 2000fps, as per the loading data. The groove diameter is .267-.268. The bullets are seated to touch the rifling and are lubed with liquid ALOX. Should I size larger(modify the mold) or use a lighter bullet?
Thanks NS