Barrel diameter Vs. Accuracy?

[treetrimmer_01]

I'm building a 338 ultra mag that I want to make it lightweight for hunting but also want it to make it accurate as possible. Where does accuracy really start to suffer as diameter drops. this will be a strictly cold bore shot gun, unless he unlikely event of a follow up shot on game is presented.

Thanks

 

[biffj]

Re: Barrel diameter Vs. Accuracy?

A lot depends on the length of the barrel as well. The shorter you make it the smaller the diameter can be. A long thin whippy barrel is harder to find an accurate load for than a short fat one, or a shorter thin one. How far are you planning on shooting? If you can keep the barrel short there isn't any reason you can't keep the barrel at varmint or lighter diameter.

Frank

 

[treetrimmer_01]

Re: Barrel diameter Vs. Accuracy?

I would like to be able to have a decent shot at coyotes out to 1000 (this may be a pipe dream tho. lol)

 

[jpspeeddemon]

Re: Barrel diameter Vs. Accuracy?

light palma contour. The palma contours are designed to save weight without affecting accuracy.

 

[treetrimmer_01]

Re: Barrel diameter Vs. Accuracy?

What kind of length should I get? Looking at prolly shooting 250gr or 300gr scenars.

 

[leadbullet]

Re: Barrel diameter Vs. Accuracy?

I would go with a fluted medium palma, best of both worlds, light and stiff.
hope this helps.

 

[biffj]

Re: Barrel diameter Vs. Accuracy?

Have a look at this article written by Dan Lilja who makes barrels and is a benchrester of the highest order. He has a lot of good info and will answer emails with silly or pertinent questions.

http://www.riflebarrels.com/articles/bullets_ballastics/long_barrel_velocity.htm

Hope that helps
Frank

 

[sheepfever]

Re: Barrel diameter Vs. Accuracy?

Have a #4 Hart at 26" plus 3 port brake and accuracy is not a problem(338 edge).

Total gun gun weight is 8lbs- 2oz with 2.5 x 10 x 32 NF.

Defensive Edge built it.