From what I've been able to gather, the problem is limited only to the FinnLights with the fluted stainless barrels, and not the standard unfluted stainless barrels of the other Sako 75's.

It seems that Sako/Tikka got a bad batch of barrel blanks from their foundry that had impurities/inclusions than made the barrels have weak spots, and the problem is isolated to a small run of consecutive serial numbers for Sako FinnLights and Tikka T3 stainless models.

Call BerettaUSA with your serial numbers and ask them. (800) 636-3420

Mike