The hole spacing is approximately 8.35". It fits a long action. After doing more research I have found that this is a remington factory piece. On midwayusa it's listed as their mountain rifle trigger guard with detachable magazine. The magazine it comes with is remington factory long action magnum. The retail for the bottom metal is $45.49 and the magazine goes for $52.99. I would like to get $75 shipped for the package.
Thanks,
My gun is a 721 with 7.35 hole spacing and is a 30-06. Looking to adapt a BDL style stock and removable magazine to it. Maybe the Magnum action is longer than an -06 ? I know the 700 30-06 action also has a roughly 7.375 hole spacing.