Thread: lengths of barrels

Ahhh so much to learn, I love it. So a shorter barrel makes the projectile drop faster. Is that all? If thats the case and velocitys seem to be the same how long can you go before velcocitys drop and start effecting accuracy.

More drop is because of less speed. Same speed same drop. Iron sights, a longer barrel = longer sight radius = easier to shoot accurately, not relevant with a scope. Shorter barrel of the same thickness, all else the same, will be stiffer than a longer one which may mean better accuracy.

I saw a similar test comparing a 9" tube to a standard 18.5" tube. Resulted in higher velocity and less extreme spread in velocity.

My Walther UIT/LS is 16" and I guess it to have been considered optimum length for "standard" match stuff like Eley Tenex etc. When the extension tube and weights are added, it's a metre from the back of the bolt to the muzzle.



Here's a look through the scope:



Ray.

Originally Posted by Toby

Thanks for that. I want a longer barrel for my gun cause I thought it may increase accuracy over 50m. One more thing I was reading in some forum full of americans they said below 12" may be shorter cant remember precisley but that even HV ammo will only be subs. Is this true?

Not as far as I know. Subs in mine go click. You wouldnt hear it 10 ft away. HV still go bang as they break the speed barrier so it aint slowing them much if at all.

I've heard that going too short can make some subs go super sonic, though I have a 12.5" tube and have not encountered this.

The Remington stuff does it in mine. Some sub, some not.

Why does remington ammo have that funny crimp mark looking thing half way down the shell. My semi hates rems

The Remington .22 I've tried is crap. Inconsistent speeds and bad accuracy in everything.


Win is better, CCI seems best in the guns I've tried but long bullet makes it hard to close bolts.

My 7 year old nephew with my Savage Shorty was hitting a ten inch steel plate at 200 meters 4 out of five times. That's with Winchester 22lr ammo, not so accurate with Federal.

Originally Posted by Nzgunner

My 7 year old nephew with my Savage Shorty was hitting a ten inch steel plate at 200 meters 4 out of five times. That's with Winchester 22lr ammo, not so accurate with Federal.

Wicked stuff, mine seemed to like feds the same as wins but I hated that feds sucked at killing birds which is my main thing to shoot now around home.

Its a shame ammo manufacturers have not developed the ammo recently It would be great to be able to buy late model ammo with ballistic tip and hollow point like the .17 ammo variety available.
(I may be wrong here but have not seen any of those) Even subs with a point would they improve the BC by doing so ?

Originally Posted by Happy

Its a shame ammo manufacturers have not developed the ammo recently It would be great to be able to buy late model ammo with ballistic tip and hollow point like the .17 ammo variety available.
(I may be wrong here but have not seen any of those) Even subs with a point would they improve the BC by doing so ?

Yes

Originally Posted by 7mmsaum

Yes

Short and sweet.... Ha ha Why d ya reckon the manufacturers havn t progressed it ... Any how time to go to the pub... Work is now over till 2013....

Advantage of .22lr is it's cheap, Vmax style bullets not so much, may not work at .22lr speeds either. Also the way the bullet sits in the .22lr case.