Thanks...I was wondering how much the short barrel changes things.
Should I worry a lot about the bullet style (SWC, HBWC, DEWC, etc), type of primer (manufacturer), COL, etc. or is the main concern bullet weight and amount of powder as long as I seat the bullet at approximately the correct depth? (Since I am only looking to "design" a low recoil, 30 foot practice round, after all. )