Article: Velocity vs Barrel Length

[Admin]

You can view the page at http://www.northeastshooters.com/vbulletin/content/912-Velocity-vs-Barrel-Length

 

[Golddiggie]

Interesting to see that my new 4.2" GP100 ranks damned close to, if not better than (with some ammo) a 6" barrel.

I'll have to look and see if they have a listing for 45 ACP 1911's with different barrel lengths. Interested to see how my new 1911C (4.3") compares with 6" barrels.

 

[DrBurnsides]

I've always appreciated the Lucky Gunner "Science" articles. Their exhausting testing is really interesting.

 

[bigblue]

Another good resource:

http://www.ballisticsbytheinch.com/

 

[Gibbs]

Love the maths.

 

[strangenh]

Another good resource:

http://www.ballisticsbytheinch.com/

Yeah, this is seriously been-there-done-that for them. Great site.

 

[Crotchrocket]

Interesting.. I've heard it said that a 2" in 357 is pointless because it needs more length to build speed, but looking at their data. A 357 out of a 2" is as fast as a 9mm out of a full size. A cute little .357 revolver might be a decent pocket gun. Both calibers also see about the same increase over full length about 150-200fps. Of course kinetic energy formula is exponential for velocity so an energy chart might be more telling.

 

[Upland]

Interesting stuff. Revolvers have the variables of cylinder gaps and forcing cones that effect velocity. For 38/357 I would think once you go past a 4" barrel the little bit of velocity you gain is not worth it,unless you like the weight forward and the increased site radius of a long barrel.

 

[JRT]

Makes me wonder about all Hornady ammo, I use it in my 357 snubbie and my 9mm.