Velocity vs Barrel Length for Handguns - The Firearms Forum

Caneman · 12-03-2011, 10:43 AM

I gotta share this website with you... here these guys have done some really impressive testing to demonstrate how bullet velocity is affected by barrel length...

Last year I was developing a load for my 4" .357 Magnum and couldn't understand why I wasn't getting 1500 fps from my loads like they did from the load book... then i didn't really understand very well how a longer barrel increases bullet velocity, all other factors being equal... anyway, check out this website here:

Ballistics by the Inch

and they share their data for free here to download:

Raw Data

after reviewing their data, i soon understood why i would never get 1500 fps out of my 4" bbl and have the gun remain in one piece, and going for a target velocity of 1250 fps was more realistic...

enjoy

carver · 12-03-2011, 10:50 AM

I have a short cut on my desk top to this site! It will answer a lot of questions!

12-03-2011, 10:43 AM	#1
Caneman Advanced Senior Member Join Date: Oct 2010 Posts: 1,263	Velocity vs Barrel Length for Handguns I gotta share this website with you... here these guys have done some really impressive testing to demonstrate how bullet velocity is affected by barrel length... Last year I was developing a load for my 4" .357 Magnum and couldn't understand why I wasn't getting 1500 fps from my loads like they did from the load book... then i didn't really understand very well how a longer barrel increases bullet velocity, all other factors being equal... anyway, check out this website here: Ballistics by the Inch and they share their data for free here to download: Raw Data after reviewing their data, i soon understood why i would never get 1500 fps out of my 4" bbl and have the gun remain in one piece, and going for a target velocity of 1250 fps was more realistic... enjoy -->

12-03-2011, 10:50 AM	#2
carver TFF Moderator/Host Join Date: Jul 2008 Location: DAV, Deep in the Pineywoods of East Texas, just west of Shreveport, LA Contributor Posts: 11,266	Re: Velocity vs Barrel Length for Handguns I have a short cut on my desk top to this site! It will answer a lot of questions! __________________ Y'all be safe now, ya hear! Lamentations Chapter 5: 1. Remember, O LORD, what is come upon us: consider, and behold our reproach. 2. Our inheritance is turned to strangers, our houses to aliens. 3. We are orphans and fatherless, our mothers [are] as widows. 5. Our necks [are] under persecution: we labour, [and] have no rest. 16. The crown is fallen [from] our head: woe unto us, that we have sinned! 21. Turn thou us unto thee, O LORD, and we shall be turned; renew our days as of old.