I have been curious to try these bullets in my rifle. Mine has round bottom rifling so my concern would be the skirt not opening up enough to seal the bore properly. My rifle has a 1/66 twist seven groove Rice barrel. I have been told not to bother with them due to leading but I would plan on slathering them with my preferred patch lube which is a 50/50 bees wax and coconut oil that is a fairly thick lube. My main curiosity is how well they will shoot compared to patch and ball.
Have any of you tried them? What were your impressions?
My guess is your rifle is .50 or .54 cal.
Rounded bottom Rice barrel usually means .016" rifling depth. The depth of grooves and the 66" twist cries round ball.
If your rifle was a TC with button rifled .004" depth of rifling, you just might get better accuracy with slugs than round balls.
A .495 ball (Rice Bl.) in a .50, or .535 ball Rice Bl) will kill deer more quickly than any slug you could use in either calibre.
Larger hole, better cavitation, flatter shooting, longer effective range where elevation and drop are immaterial. With either
you can have a 130yard point blank range, something no conical will give you.
To find out how your Rice round ball barrel will shoot those slugs - YOU will have to try them.
I did try some slugs- R.E.A.L. bullets from a Lee mould, in my .45 Flinter's GM barrel 60" twist with .010" rifling depth. They shot OK,
but not as well as properly patched (IMHO) round balls.