Which mag/dbm allow for longest C.O.A.L. in Tikka T3 (260 rem)

[Winny94]

I am shortly having a 26" barrel spun up for my T3. I'm now figuring which stock and DBM I should run. I would like to load for 147gr ELD-Ms, but I'm concerned a SA AICS mag is going to hold back my loads due to the length. So which DBM/mag would allow for the longest C.O.A.L.? I've even kicked around the idea of inletting for a LA AICS DBM, but I lm concerned the 3.4" would be too much and lead to feeding issues.

Anyone with experience care to chime in? Thanks!

 

[Delicatessen]

Either the ctr bottom metal or the American rifle company magazine should work...loaded the 147s to 2.91 and functioned in both for me. Just depends on your stock choice as a few work with ctr but most are aics which work with arc.