Thread: 260 Rem, AI & Imp

2209 and no because i do all my load development starting in to the lands

as if it don't work out there is only one way go and thats back off , so far

my 223 is the only rifle that don't like it touching .

R19 for me in 260. Very nice.

Still early days but got higher speed than 2209 before pressure
Have just got some super primacy to try.


Sent from my SM-G900I using Tapatalk

Start around 45grns and you will be close with superperformance I reckon.

Sent from my SM-G900F using Tapatalk

Cool thanks ill start there and see how it goes.

Sorry for late reply. With the 140VLD-H and with a Superformance powder load of 46.9gn I'm getting about 2830F/S.

Obviously this load is for my rifle and starting several grains less for your tests would be sensible.

Good Luck

Originally Posted by HOWA308

Sorry for late reply. With the 140VLD-H and with a Superformance powder load of 46.9gn I'm getting about 2830F/S.

Obviously this load is for my rifle and starting several grains less for your tests would be sensible.

Good Luck

Thanks for that I tried it the other day and 47grn with the 130 was good at 2930fps but mine is an AI got some more loads to try yet but looking good.

Sent from my SM-G900I using Tapatalk

What are peoples optimal oal length in this cal? Eg how does it go
In a rem short action with the 140's seated out?

Originally Posted by camo wsm

What are peoples optimal oal length in this cal? Eg how does it go
In a rem short action with the 140's seated out?

Nearly as good as a 7mm08 thats pushing 140 grainers at 2930fps

Originally Posted by 7mmsaum

Nearly as good as a 7mm08 thats pushing 140 grainers at 2930fps

Haha I'm still struggling with my decision to make

Originally Posted by 7mmsaum

Nearly as good as a 7mm08 thats pushing 140 grainers at 2930fps

What's the barrel length Andrew?

Originally Posted by Proudkiwi

What's the barrel length Andrew?

Anything over 21 inches with a long lead/throat

And further to that, in a 20inch tube what is a realistic MV between the .260 and AI version using 143gr (yeah, yeah I know) projectiles.

Is the increase substantial?

Originally Posted by Proudkiwi

And further to that, in a 20inch tube what is a realistic MV between the .260 and AI version using 143gr (yeah, yeah I know) projectiles.

Is the increase substantial?

I would like to know this also

I'd say no even though I haven't had a 260 Ai, in a 20" mine's pushing 2700 with the 140 without pressures. Anaemic I know but I'm a barrel life and accuracy guy so I'm never going to be the person who's chasing 3000 in a 6.5 with 140's.