|12-19-2003, 06:39 AM||#1|
Join Date: Apr 2003
Barrel length vs. Velocity & Accuracy Question
Hi guys! I plan on having a J frame Kit Gun done up in 32 H&R Mag & was wondering if there would be any noticeable difference between a 4" & a 3" barrel accuracy & velocity wise. I know the longer sight radius is usually better for accuracy but it doesn't seem to affect me much in the shorter barrel lengths. I have both a 63-3 2" & a 63 4" & I can shoot the 2" as well as the 4" which really surprised the hell out of me.
I just figured I'd ask some questions before having some custom work done as I don't want to just throw my money away. I know I could go with a bigger caliber but I really like the handiness of the J frame kit guns & it would also see double duty as a house gun for my wife. The 32 Mag is about as much as she can handle & I figure it's better than a 22mag. I'm already set up to cast & reload for the 32mag also. Thanks for any help/ideas guys.
|12-19-2003, 11:02 AM||#2|
Join Date: Jan 2003
Location: NC Foothills
Rule of thumb, you can figure on somewhere between 25 and 50 fps loss
per inch, depending on several things, such as powder burn rate and
bullet weight. Even a change in your firing grip can have some effect.
Sight radius notwithstanding, the length shouldn't have any effect on accuracy. There is a possibility of increased muzzle blast and turbulence from the shorter barrel having a detrimental effect, but it would be hard to
measure, unless the barrel crown isn't true, allowing gas to escape around
the exiting bullet unevenly, so make sure that you choose a good smith
to do the work...one who understands the importance of a good barrel crown.
Even at the maximum loss of about 50 fps, it wouldn't make any practical difference in the real world.
|12-20-2003, 06:28 AM||#3|
Join Date: Sep 2002
I agree with Mr. Travis. Barrel length really has no affect on accuracy, a longer sight radius does make it easier for us to shoot accurately.
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