- Nov 5, 2015
Have you ever encountered a situation where using the same bullet with different powders causes the c.o.l to be changed when switching powders? I can't recall this happening myself. Just wondering. Dan.
I meant using the same bullet but with different powders does it or would it cause the c.o.l. to be changed in order to achieve the same group size. I know not all bullets and powder make good combinations. Let's say you're using a Nosler 165gr AB with RL15 then try Varget with the same bullet. If the established load using Rl15 and that c.o.l. would or could it have to be changed using Varget? Hope this helps. I've adjusted seating depth with a given powder until acceptable accuracy was achieved as we all have. Just hadn't thought having to change c.o.l. when switching powders. It's possible I have done this, just didn't remember. Will search my loading data. Dan.by reading the replies I'm struggling with my interpretation of your question. Are you saying that by changing only powder, could there be a variation in cartridge over all length? If so I would say No. That's the way the post reads. But are you asking if by changing powder, do you need to adjust seating depth as a result the cartridge over all length to achieve the same accuracy then my answer would be Yes. Sorry I'm not quite getting the question