I bought a used CVA Frontier the day before yesterday. I bought it on a whim after hearing a guy advertise it on "Swap and Shop" which is a local morning radio show.I probably paid too much for it at $180.The gun looks great,and has a good bore,and plenty of brass on it,and has a nice carving of a Bison on the stock.I got about 20 balls,a starter,and some of that bed ticking patch material,and a can of #11primers,and a jug of Pyrodex.I bought some of them Pennsylvania conical bullets on sale as well.I went out to the farm to shoot it yesterday, and was surprised at the way the powder looked.It has a price tag of $16 on it,so I assume it is old.Is it supposed to be a medium gray color, and the consistency of crumbled dry dirt?.I loaded it up with 70 gr.and one of the Pennsylvania bullets,and when went to put my cap on the nipple it didn't want to go.I pushed it on anyways, and it didn't go off. I tried it again, and still it would not fire I put another primer on, and with the muzzle in a safe direction I put another cap on, and shoved it on the nipple with the bullet starter.I had to shove it hard.I tried it and the gun went off.I tried a few more times,and had mixed results.I noticed that the nipple on the gun is chrome color, which I found odd but I just figured It was a replacement. I came to the conclusion that the guy I got it from probably never shot it,or thought it didn't function right.I assume the nipple was for a bigger cap.I took the nipple off,and filed it down,and the caps go on with hard finger pressure,and I fired 6 shots with no misfires.I noticed the flat pin that holds the stock on the barrel fits pretty loosely ,and I would hate to lose it.Is there a way to prevent the pin from backing out?.Should that bracket that dovetails into the barrel that the pin goes through mate so loose to the barrel that it falls out without the stock being on,or should it fit tight like a dovetail sight?.I was pleased enough with the accuracy of the gun,and feel that with some practice, and load tuning it will make a pretty good shooter.I never loaded any balls in it yet,but I plan to.I watch videos on YouTube,and most people don't seen to lube their patch.Why is this? Does the patch need lubed?,and if it does would sizing wax be a good lube?What is good lube? I know I have asked a lot of questions, so this is the last one for now.How long can you leave a rifle loaded with Pyrodex without risking corrosion?..Thanks