Ok heres my story. I use goex FF in my TCA white mountain carbine. I wanted to try those pyrodex 50 gr pellets, but TCA reccomended against it. They say you need more spark than a percussion cap to get consitent fire, so I just never tried it. I am one of those guys that find something that works and sticks to it, and I dont plan on making any changes until the end of muzzle loader season. But I am finding in my area that goex FF is getting harder and harder to find. As it is now, I have to drive into the next town just to get it, and since they are the only place, they are charging more and more. With everybody's experience, what are my other options. The place around the corner from my house sells this black powder substitute, but they are willing to order me anything. Any suggestions. I just bought an inline, that i will probably hunt next year, but I love shooting that white mountain carbine, it has some sentimental value. Help me out please.