6mm AI Barrel ?

[7mmmag]

I'm in the process of building a 6mm Ackey . I am going to shoot 105 Berger or 107SMK . I am leaning to a Pac Nor 3 groove barrel 28''-29'' with a 1-8 twist. I have never had 3 groove barrel so I am looking for input .
I have read some of these barrels will also shoot 87 V Max in case I would shoot some coyotes . Thanks

 

[LWolken]

Years ago many believed that the three groove barrels were creating jacket failures with vld bullets i.e. blowups. I'm not sure if people are still experiencing this currently, but if I remember correctly it was specifically with cartridges like the 6-284 and 6mm-06. Might opt for a Kreiger 4 groove to be safe. Something about the big lands of the three groove distorting the thin jacket too much causing blow-ups. The benefit of the three groove was that it had bigger lands thus giving longer barrel life.

Lance

 

[Preacher]

I have a few 3 groove 8 twist Pac-Nor's and as long as I don't try to run 80 grain Bergers out of them at over 3850 FPS they work just fine... ;D

 

[watercam]

I have a Lilja 6mm three groove in 6XC. Very accurate and if anything a bit faster than my Bartlein four groove at the same length. Less friction perhaps?

 

[7mmmag]

Thanks to the responses . I think I will try one , do you think # 7 contour 28'' is about right length for a Rem 700 long action ?
Side note I just got my Manners stock MCS T2 with adj cheek LOOKS & FEELS GREAT !