Cabage

Knurl the TMZ bullet with a pair of bastard files and raise them up a thousandth or two. Its quick and easy. You just roll it between the 2 files about 4 passes depending on how hard you apply pressure.

The Knight blue sabots that came with my Spitfires are really easy to load and after wards they were pretty good and shot much better.

Ive shot Barnes boat tails in non boat tail sabots with good results also but they really need to be snug. IMO the solid copper bullets really seem to benefit from this rough surface against the sabot.