Check the listing for details. L.E.WILSON Adjustable Case Gage for 7mm Rem Mag # CGA-7RMM New!. Condition: New. Listed at 51.88 USD. Adjustable Case Gage for 7mm Rem Mag New CGA-7RMM For belted mags. While the belt provides support for proper headspace, the life of the case will drastically shorten unless resizing is held to a minimum at the shoulder. These gages, which can be adjusted to be used with individual rfls of the same caliber, will enable the handloader to control the amount of resizing simply by measuring a fired case. Overall length can also be checked with these gages . ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ W e are a Factory Direct Dealer of L.E.Wilson ALL MANUFACTURERS WARRANTIES WILL APPLY ! All of our products are BRAND NEW in the box; and contain all of the parts, materials and documentation. You can expect and will receive prompt delivery of your item. We will ship your order within ONE DAY!