Hope this is the correct place to post this question, and I tend to ask lengthy questions once I start typing...lol... I have an older Knight Wolverine and a Remington 700ML. Black powder shooting is not really a thing I want to spend a lot of time with, but I will usually hunt once or twice a year with it. Realistic shots for me will be 75 yards max. I've always used sabots, but they are a real bear for me to load with a fouled barrel even with the Harvester crushed rib ones.The last several years I've been using the inexpensive TC Cheap Shots with Harvesters. Since I began casting, I thought now might be a good time to think about full bore conicals. Dad gave me a single cavity mold that came with a blackpowder kit gun he built decades ago, that has no markings, so I cast a few using lead pipe ingots and tin (Thanks Dusty for the tin!). They are not perfectly round, with about .001 to. 002 runout. The bottom bands are .499 to .501, the center bands are .501 to .503, and the forward bands are .505 to .507. I pulled the breech plugs of both rifles and ran one bullet each down and back out. The bullet had only slight resistance (but still required pushing in) until the top band, which required a bit of a tap, but then slid down much easier than a sabot. (This is with a clean barrel). I am getting about .005 into the grooves, but obviously the grooves are deeper than that. I guess my question is, is this enough groove depth to get spin, or a total waste of time to even try them? Looks like my bore is about .501, but have not slugged for actual groove depth. *This particular bullet did not get a good crisp flat base but most did..