need help with a minor issue
First a brief history:: When Pa re-instated the early muzzy season, the first year was flint only, then it opened up to include inlines. I have ALWAYS used Powerbelts..With the first flinter I used Goex in the barrel and pan. My first inline was a Traditions E-Bolt-209. I used Pyrodex pellets under the Powerbelt. In both caes all worked well and all the general muzzy function were as expected.
Then they brought out the APP powder with their ad showing hundreds of rounds fired without the need for cleaning. I first used it in my E-Bolt and can't remember any issues. In the last 6 years or so in both my inlines and flinters, after the first shot, I notice the bullet being harder to push down the barrel. after about four or five shots I really have to push on the ramrod to get the bullet to go down. This "friction" occurs about 4 to 6 inches from the muzzle. Once the bullet gets past that restriction, it goes the rest of the way easy. I'm using 100gr 3FG of APP. My questions are: is it possible the charge is too hot? Not enough? Why would that restriction occur in the area of the barrel I mentioned?
The load is extremely accurate and I would hate to compromise that, but I can't figure out why in theses last years that restriction has appeared. When I clean the bore, I use a plastic brush and really work that area and when I fire the gun after that it goes back to the same routine. First shot goes in real easy the entire way down, and subsequent shots have the increasing friction about 4-6" down from the muzzle. And this does it in both my flinter and my inline. Any ideas?
I gotta go agitate the techies!