The Firing Line Forums - View Single Post - long barrel ballistics with pistol calibers

Brian Pfleuger · February 28, 2014, 10:31 PM

I set up QuickLoad to include barrel friction and asked for a max .45LC load in a 10" barrel. It says RL-7 gets me about max speed with reasonable case fill. I then looked at a 24" barrel with and without barrel friction. It still thinks Rl-7 is the powder to do it.

It says that speed would max out at 1,358fps at 15.8", remain roughly flat until 17.5" and then drop to 1,296fps at 24"

February 28, 2014, 10:31 PM	#3
Brian Pfleuger Moderator Emeritus Join Date: June 25, 2008 Location: Austin, CO Posts: 19,578	I set up QuickLoad to include barrel friction and asked for a max .45LC load in a 10" barrel. It says RL-7 gets me about max speed with reasonable case fill. I then looked at a 24" barrel with and without barrel friction. It still thinks Rl-7 is the powder to do it. It says that speed would max out at 1,358fps at 15.8", remain roughly flat until 17.5" and then drop to 1,296fps at 24" __________________ Nobody plans to screw up their lives... ...they just don't plan not to. -Andy Stanley