Author Topic: barrel length (Read 1621 times)

outlawsix · « **on:** December 23, 2002, 03:27:20 PM »

Do you fellas feel that a 24" barrel for a .50 cal is long enough or should I try for something longer. The reason I'm asking is that the factory TC encore barrels are 26" yet only 25" are rifled. The other inch is their QLA system. Wondering what kind of velocity I would be losing if I were shooting say a 295 gr power belt in the two barrels. Thanks a lot.

KING · « **Reply #1 on:** December 23, 2002, 03:35:18 PM »

Outlawsix. If it helps any, you loose or add roughly about 50 fps per inch of barrel. I have not heard of any of the guys that shoot in-lines complaining of losse of projectile speed in thier rifles. If,fer instance the fps is 1800,what you would gain with another inch is probably not not worth worring about for a hunting arm. Plenty of ooooommmmf there...King

outlawsix · « **Reply #2 on:** December 23, 2002, 03:43:46 PM »

Thanks a lot. I figured it couldn't be that much but was curious. Thinking about using 777. Have heard it has a lot of power compared to pyrodex. In the big schem of things 50fps isn't much. Thanks.

savageT · « **Reply #3 on:** December 24, 2002, 04:11:01 AM »

Quote from: outlawsix

Do you fellas feel that a 24" barrel for a .50 cal is long enough or should I try for something longer. The reason I'm asking is that the factory TC encore barrels are 26" yet only 25" are rifled. The other inch is their QLA system. Wondering what kind of velocity I would be losing if I were shooting say a 295 gr power belt in the two barrels. Thanks a lot.

outlawsix,
I think it depends on the twist rates. With a fast twist 1:28, a short barrel is adequate and with slow 1:66 twists, the longer barrels are superior....also give you a longer sight plane to improve accuracy w/open sights.

outlawsix · « **Reply #4 on:** December 24, 2002, 05:10:26 AM »

It is the 1-28" twist.

savageT · « **Reply #5 on:** December 24, 2002, 05:38:15 AM »

Quote from: outlawsix

It is the 1-28" twist.

That will work fine....If you look at a hawkins you'll see that T/C uses a 28" barrel w/ 1:48 twist. You aren't going to find 1 inch barrel length for every inch of twist. It's the path length the bullet travels that counts.

savageT