9ThreeXFity7

I have no idea when they started but I,m sure they were here in the 70s in the older action ?
I have tried to post a photo of the one I have now in 500 3-1/4 Nitro ,I have shot this with full loads , but it is a bit too much really so now use hot 50-140 loads or Nitro for black loads
I think it is cool & you can get the metal trigger guard and fore end parts on line now !