Thread: 284 win vs 280ai

Originally Posted by cameronjackwhite

Right so anyone built either of these calibers on the sako 75? Alan Carr is in the process of chambering new barrel in 280ai and thinks the 2 bottom locking lugs will catch the shoulder of the 2nd round in the mag on the backward stroke?

Yep - a friend of mine had a standard 280 which he recently had rebarreled to 284. His results so far with the new barrel have been very pleasing. Here's what he told me:
Yes mine was standard .280, the Ackley will be fine also, the only slight problem is with the steep shoulder angle the 2 bottom lugs of the 3 lug action tend to catch on the round in the mag when retracting the bolt. This isn't a big problem- you just need to be fairly positive when pulling the bolt back. It also happens with the 35 degree shoulder on the
.284 case. The long .280 case also doesn't leave a lot of room for bullets and typically you will be beyond mag length before you get near the lands with nearly any bullet. The
.284 on the other hand makes for a far superior long range setup and will allow any bullet to get to the lands and still fit in the mag. The Sako mag length is 3.380 inches which with an "06" case and slippery bullet will mean a not fully fulfilled hand loader/ owner.