Yep no problem with your loads. I have had my 21 at the limit with the Rowland but since have scaled back. I run my 250s at 1200 from the 21 with no issues. We have been loading .45 Super loads (25,000psi) from the wheelguns with no issues.
Ok sounds good.... My 21 runs like a champ.... Others on here have said that a different crimp is needed....A roll crimp....I cant find other dies for 45 acp to crimp differently though... I currently use lee dies...