Hi George,
Can I use a heat gun to get the curl out of the end of the patchworm? Or do you have any other recommendations?
I know about the straw trick but it doesn't really work on my .357. The straw trick does work pretty good for my .25.
Hey there, if by "end" you mean the pointed tip end, then the best way might be to submerge it in boiling water for a few seconds. But do not submerge the rod end with the .20 cal end stop. I assume that you want pointed end straighter for easier passage through a moderator. Success with the straw also depends a lot on a close fit between the straw and the moderator exit hole.