I am geting frequent misfires out of my T/C Black Mountain Magnum sidelock. I am using 777 (100gr), musket cap and powerbelts. It seems that if I leave the gun loaded overnight or even several hours, it misfires. This happens with both a clean and a fired barrel. I don't have this problem at the range where I fire several shots in succession. I hunt in North Fla. where the humidity is high. I have an acquaintance who hunts with a T/C Hawken but experiences no problem. I am using loose powder.
Would switching to a No. 11 cap solve anything ?
Should I load any differently ?
Any help is appreciated.
I use No 11 caps and they work fine for me.
When you load your powder, do you have the hammer down on the nipple, or half cocked?
I like to trickle the powder down the barrel and tap on the off side of the lock to get powder in the flash channel. If the hammer is down you could get an air block, and prevent the powder from getting into the channel.
If you have a high humidity problem, and are keeping the gun loaded over night, you might pull the nipple and put some fresh powder under it, before going on the hunt the next morning. This is what I like about hunting with traditional Ml's. Each one is different, and you have to get to know the gun.