I know my Elite 45 with a 1-30 will shoot them fine upto a 360gr. Actually i think that was my best 100 yard group ever with it. I never tried anything heavier. A Knight Original 1-20 would likely shoot the heavy weights really well. I probably wouldn't waste my time either cutting a 45cal 1-28 but i might consider it if needed on a 1-20 just because it should shoot 400gr+ conicals better with the faster twist.
Last edited by Gm54-120; 06-29-2011 at 07:12 PM.