lemoyne...Yep, sure have...Used to do a little competitive shooting as well...
Used to have to pound it down the bore with a short starter and a mallet...
After my retna tore, I gave that up...Dropped down a ball size and really concentrated on trying different patching material and lubes...

Most of my shooting is casual targets and hunting now and found a smaller ball and thicker patch was easier to load and pretty accurate...

My rifles both have Ed Rayle barrels with .015 rifling, that might make a difference as well...