The Firing Line Forums - View Single Post - Bullet Diameter

hdwhit · January 21, 2018, 10:18 PM

Lead bullets for 45 ACP are typically 0.452 inches in diameter. Most published data uses lead bullets of this diameter.

If you have - or are going to use - a bullet with a larger diameter you will need to reduce powder charge as the barrel has to draw the bullet to a smaller diameter and that resistance will increase pressure.

January 21, 2018, 10:18 PM	#2
hdwhit Senior Member Join Date: June 22, 2017 Posts: 1,011	Lead bullets for 45 ACP are typically 0.452 inches in diameter. Most published data uses lead bullets of this diameter. If you have - or are going to use - a bullet with a larger diameter you will need to reduce powder charge as the barrel has to draw the bullet to a smaller diameter and that resistance will increase pressure.