My biggest issue was with accuracy on the PR bullets....it's my personal feeling that pure lead bullets are not made to be driven that fast and in a three shot group, there would invariably be one flyer. If I kept them sub 1850 fps, things would tighten up. I've heard guys that swear by them but for me and a couple buddies, as soon as you started pushing them past 1,900 fps, accuracy went out the window. There is a lot of obturation in pure lead bullets and while some is desireable when not using a sabot, I think too much causes the inaccuracy issues. Put them in a sabot and that obturation starts to put some weird pressure points on the pedals of the sabot. While breaking pedals off is quite common and nothing to worry about, with pure lead bullets pushed at high velocities, we were actually seeing the pedals melting off from friction from the extreme obturation of the lead bullet. As the sabot pedals are soft, the obturation isn't uniform and the bullet, being smaller than the bore, actually gets a bit canted in there and causes the accuracy issues...at least that's my theory and I've seen enough sabot with melted pedals to give it some credence. Personally, I think high velocity muzzleloaders need jacketed bulets and is likely why companies like PR try to downplay the 150 grain loads.
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