Now gentlemen, I never said the rifle would not shoot PRBs or conicals. Both will shoot satisfactory with the right bullet/powder/charge combo. I was merely saying that the 1:48 is not the OPTIMIM twist rate for either.
I shot a 1:48 for years in PA when only PRBs were the legal projectile. And when conicals were allowed, the transfer required just a bit of load tweeking.
But for a short range woods rifle I said it would be dynamite.