Back in the sixties I was shooting a .44 Magnum revolver, using Elmer Keith's 250 grain SWC that I had cast myself. I had used Lyman's black bullet lube when sizing and lubricating the bullets, and they were loaded over 22.0 grains of 2400, just like Elmer used to do. I was shooting at a paper target mounted on the face of several bales of hay.
After firing 50 rounds or so, I noticed smoke coming the hay. I tore the bale apart and found it was smoldering inside, right where the bullets were hitting. I could only conclude that the bullet lube was hot enough to ignite the hay. First and only time I ever experienced something like this, but it made me more careful when shooting cast bullets into anything that resembled tinder.
