need input on .260 twist rate

[STW FAN]

I was wondering what rate of twist would be best for 107 and 123gr. smk's wouldn't be shooting anything lighter and max would be 130gr. bergers. I have a .260 with a krieger 1:8.5 and it loves the 130gr. bergers but so far doesn't seem to like the 123's. Probably be getting a broughton barrel would a 1:9 or 1:10 be better? Thanks

 

[RobertB]

Re: need input on .260 twist rate

8 and 8.5 twists work fine for my 142's so 9 or 10 should be fine for 120 grns. I would think.

 

[JamieD]

Re: need input on .260 twist rate

If you are thinking you might shoot the 130 Bergers, I would play it safe and use the 1-9. 1-8 will still shoot the lighter bullets but allow you to go heavier later if you decide to. All my .260's really shined with the 140's. I did try and shoot the 120's and 123's for a while but ended up going back to the 140's.

good luck,
JamieD

______________________________
Jamie Dodson
814-262-7994
Wolf Precision
AI Stocks and Accessories

 

[STW FAN]

Re: need input on .260 twist rate

Thanks, I'm pretty much a speed freak so I definitely want to stick with the lighter bullets and get a slower twist than what I have now.

 

[8up]

Re: need input on .260 twist rate

I would stick with the 9" twist if you go that route. That twist should still give you decent velocity and work with those various lighter grain bullet weights.

 

[dar1246]

Re: need input on .260 twist rate

I would go with an 8.5 twist on the barrel. I have had great success with this. You can shoot both of the bullets with no problems. Good luck

 

[6.5BR]

Re: need input on .260 twist rate

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: STW FAN</div><div class="ubbcode-body">Thanks, I'm pretty much a speed freak so I definitely want to stick with the lighter bullets and get a slower twist than what I have now. </div></div>

So you appreciate muzzle velocity over impact velocity?

 

[SDWhirlwind]

Re: need input on .260 twist rate

I am shooting a 9.1 twist Obermeyer with my 6.5x47L. This twist is what Boots recommends for the 6.5x284 with 140-142 range. I bought it from a 1000yd shooter and gave it a try as I wanted an Oby and it was my only choice at the time for twist etc.

Haven't tried the 130's yet but with the 123 Lapua I ran a 10shot string @ 3015fps with an SD of 4. Load was 38gr of RL15 and CCI450. Jumping it .010. Shoots excellent and is a 28" tube. Need to work with H4350 a bit more but don't think I might get that velocity. Most are stating best accuracy etc around 2900-2950 IIRC. Mine has been a safe queen for almost a yr. Too many toys I guess.

 

[Tangodown911]

Re: need input on .260 twist rate

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: dar</div><div class="ubbcode-body">I would go with an 8.5 twist on the barrel. I have had great success with this. You can shoot both of the bullets with no problems. Good luck </div></div>

+1 I have to go with dar on this one.

 

[kill_goose]

Re: need input on .260 twist rate

Would a 9" twist stabilize the 130 and 140 VLD style bullets?

Ive heard 9" will work up to 130 standards, but with VLD's you need to speed it up???