So far, I haven't experienced that but it may be because my rifles all have Patent Breeches.Idaho PRB said:Something I have found is that they leave a small amount of powder still in the barrel. I popped a cap to make sure the ignition channel was dry the morning after I used mine for the first time and BOY! was that BOOM! a big suprise. I would just take that into consideration as you could load right on top of that powder and think you were shooting your "Pet Load" when actually you would be shooting 10-15 grains more.
Idaho PRB