Anyone have experience with Buffalo Ball-ET bullets in slow twist rifles? Are they sufficiently accurate? Thanks
Why not name the ML make / model?
At the very least, tell us how long your barrel is.
Maybe even offer-up how far you expect to shoot these Ballets
Lastly, what powder and how much powder volume are we talking about here.
For example: A powder like 777 FFF will send that bullet flying out of your bore differently than (lets say) Pyrodex FF. So trajectory and distance will be affected.
Judging by your twist of 60, I'm guesing your ML is a Lyman Great Plains Rifle. That means long barrel and shorter-than-normal conical. Personally, having never owned a Lyman, I wouldn't expect improved accuracy & distance, over-that of a roundball with pillow-ticker patch.
I once ran out of roundballs at the range with my 1:66 twist Shenandoah. So I switched MLs - then after about 10 shots with it, I put down my inline T/C Omega with 1:28 twist and grabbed some of it's leftover 200gr XTPs with Harvester ribbed sabots to shoot in that 1:66 twist Shenandoah. I was shocked at how well the paper target looked at 50 yards, using 75gr Goex FFF.
I didn't have the guts that day to venture over to the 100 yard range there.There would be no friggin' way anyone on a messageboard like this one would believe me, had I told them the next day that my 100 yard paper targets looked good enough to hunt with that deer hunting season, using a sabot bullet with a 1:66 twist barrel roundball gun.
So I chickened-out (never moved to that 100 yard range) and went home instead. I do believe I made the right call and not waste my precious time experimenting with a crazy idea like that.