30 BR Barrel Length

[260 Rem]

Is there an optimum length? What is too long...what is too short?

 

[eww1350]

There is no optimum...that I know of...if you can make weight at 25"...they shoot very well at that length...but they shoot very well at 22"....so anywhere at or between those lengths..

Good Luck
Eddie in Texas

 

[artbosco]

Is there an optimum length? What is too long...what is too short?

Barrels
There are outstanding 30BR barrels being built today by Hart, Kostyshyn, Krieger, Lilja, and Morrison among others. Al Nyhus loves his Lilja 1:17 3-grooves, and check out the target above to see how well Al’s Kostyshyn tube shoots. The Kriegers of Joe Entrekin and Henry Rivers have shown exceptional accuracy and barrel life. Joe’s barrel is still winning with 7400 rounds through it. Joe tells us: “You really can’t go far wrong with a 30BR barrel from one of the name makers. Henry and I haven’t seen a 30BR barrel yet that wouldn’t shoot. Barrel life is phenomenal as well.”

Barrel lengths from 21-24″ work well, with the 24-inchers giving a very slight velocity edge, maybe 25-30 fps. As for twist rates, 1:17 and 1:18 barrels are winning the most matches. The 18-twist may have a slight accuracy edge, but Al Nyhus suggests sticking with a 1:17: “with the 1.00″ jacketed bullets, a 1:17 is dandy and gives a bit of a safety net. A 1:18 is also great, but be aware that at least one well known barrel-maker’s 18-twist 30BR barrels are actually about 1 in 18.25″. When you run this close to the edge, bullet stability can get marginal in certain conditions”. The 17- or 18-twist barrels also torque less than 1:15 barrels. This translates to easier gun-handling. Dick Grosbier explains: “the 17- and 18-twist barrels do not torque in the bags. They also do not copper-foul very much at all. Personally I believe 17- or 18-twist is the way to go. Craig Kostyshyn has only shot a 17 as far as I know and has a very enviable record with it. Both my Barrels are Kriegers as suggested by Joe and Henry.”

Source: http://www.accurateshooter.com/cartridge-guides/30br/

 

[alf]

Is there an optimum length? What is too long...what is too short?

There's no magic length, as the 30 BR is pretty forgiving.

It's more of a gun/balance issue on the bags.