Dale it sounds like your planning an accurate target gun or ? Good for you no matter the intent.

Suggest laying out the program. What kind of action/gun would you be mounting this barrel on, which brand of barrrel and the CAST dimensions of the bullet with your alloy? Are you intent on high fps or is accuracy your main goal? Suggest assuming nothing.

You have a minor mixup with the decimals as .0002 is 2-TEN thousandths. Your then figuring 2 THOU of interferance with the nose-- which is to the heavy side.

And your link doesn't go to the bullet and I don't know what the 332 looks like.

Be glad to offer input but knowing the de-tales is the place to start.