you wanted it? There used to be a gun smithing company in Meridian, Idaho (outside of Boise) who could've opened the magazine and throat for you. They do this regularly with SA M700's and Model Sevens in .284 Win and 7mm-08 Rem. Can't remember at the moment their name, but a thorough search on the internet or inquiries to the Boise area might turn them up. When I spoke to the several years ago, they are VERY favorably impressed with the cartidges above. The purpose in opening the magazines was to accomodate heavier longer bullets.