short barrel velocity loss?

[eg23]

Hello,
Just wondering how much velocity you would lose by switching a 20" barrel to a 12" barrel on a 10-22?

Thanks
Eric

 

[dizzy]

I don't believe any, the powder is burned up in the first 16-18 inches so after that you get a pressure drop not increase.

 

[crazydave]

Anything after 16-18'' expect a 25-50 fps loss per inch taken off.

 

[eg23]

So a 12" barreled 10-22 wouldn't have the power of a pellet gun?

Eric

 

[Dacton]

So a 12" barreled 10-22 wouldn't have the power of a pellet gun?

Eric

if your doing really far target shooting or something then you might notice a difference, but other than that you wont see any changes. Just think of a handgun and how short the barrel is

 

[crazydave]

So a 12" barreled 10-22 wouldn't have the power of a pellet gun?

Eric

The bullets do lose speed, but the pellet gun comment is not even close to accurate. A 6 grain pellet has way less power than a 40 grain chunk of lead moving at the same velocity.
My friends ruger 10-22 with a 12 inch barrel shoots 800-850 fps over a chrony

 

[kodiakjack]

I asked a similar question a while back, (http://www.canadiangunnutz.com/forum/showthread.php?t=496363) and found this website very helpful:

http://www.ballisticsbytheinch.com/

 

[eg23]

Perfect thanks for the replies.

Eric

 

[Until the Angels Fall]

Anything after 16-18'' expect a 25-50 fps loss per inch taken off.

I go by that as well

 

[KDX]

The optimum barrel length for a .22 is 16" from what I remember reading on Rimfire Central.

 

[cyclone]

I sorta like the loss of velocity , from longer barrels , when firing CB Longs......