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It is a .308
Quote from: 257wbymagkiller on October 04, 2016, 03:58:13 PMIt is a .308Most likely really hard primers. Some ammunition use harder primers for semi automatic rifles.
Running steel case ammo through a bolt gun? Wouldn't recommend it.
There have been quite a few in at the Range that were having the same issue.I think it is a firing pin problem.No matter the primer it should always set it off.pin to short or spring to weak one or the other in my opinion.Look at the pin mark very weak not deep enough indention to break the primer is what i have seen.
Quote from: jay.sharkbait on October 04, 2016, 04:16:58 PMQuote from: 257wbymagkiller on October 04, 2016, 03:58:13 PMIt is a .308Most likely really hard primers. Some ammunition use harder primers for semi automatic rifles.I agree with Sharkbait, hard primers. I've been using Rio shot shells for over a year without a problem until a 5 day shoot in Vegas, broke two firing pins on my Browning O/U. The Browning Rep was in attendance so I asked him what was my problem with the pins? The first thing he asked what ammo was I using and I told him Rio and his response was Rio had hard primers that will damage pins and only cause a slight dimple on the primer. Now after 10K rounds if Federal or Winchester not a hiccup.