Heavy bullets in .30-30

That's interesting Ric. Let me tell you my findings.  I have a pre 64 Model 94 Winchester in 32 Winchester special. You know that has a slower twist of 1 in 16 then your 1in 12 30-30.  I'm shooting a 217 grain Loverin type bullets designed by another friend on another forum. It's a wider bearing ban Loverin then the Lyman type for an example. Even more negatvie to the bullet is it's undersized to the groove which it .321 in my rifle. The bullet mics at .317 as I shoot it.  I've shot it both lube and also powder coated.  I'm using 29 grains of 3031 powder for a muzzle velocity of 1996 fps. I was totally blown away that it shoots into 1/2 inch at 50 yards and also very very well at 100 yards. My rifle wears a 1x Weaver scope on a quit detache Paul Jagaur mount. That's hardly any manification at all to speak of, but it makes aiming more precise then the buckhorn iron sight.  Don't fall into that twist trap. You need to try something, that's not supposed to work, and see what it does before condeming it. BTW I guess that load of 30-31 powder must be bumping that small for groove bullet up pretty decent. The load showed no signs of high pressure on the brass and the recoil wasn't heavy either.