Lyman MSR Ammo Checkers are machined from solid blocks of 6061 T6 aircraft grade aluminum and cut with custom tooling to minimum chamber dimensions. Their black anodized finish matches your favorite “black” rifle. Check the quality and consistency of both loaded rounds and purchased ammo. A must for any AR shooter. You can?t afford mis-feeds so get the easiest ?Go? gauge available for modern sporting rifle calibers. Covers 223/5.56 6.5 Grendel. 6.8 Rem SPC 7.62×39 .30.0AAC Blackout .450 Bushmaster .458 SOCOM .50 BeowulfCNC machined to minimum chamber specsConfirm ammo will chamber smoothly Specifications for Lyman MSR Ammo Checker Block: Manufacturer: Lyman Weight: 3 oz Color: Black Fabric/Material: Black Anodized Features of Lyman MSR Ammo Checker Block: Covers 223/5.56 6.5 Grendel 6.8 Rem SPC 7.62×39 300AAC Blackout 450 Bushmaster 458 SOCOM and 50 Beowulf. CNC machined to minimum chamber specs. Confirm ammo will chamber smoothly. Package Contents: Lyman MSR Ammo Checker Block
ar15guy –
great tool for reloading great tool for reloading great tool for reloading great tool for reloading great tool for reloading great tool for reloading great tool for reloading great tool for reloading great tool for reloading
RobC –
I am not sure if this just has sloppy manufacturing, but I test every single 6.5 Grendel round that I make. They all passed this block test seating perfectly each time. Many of them failed to load in my AR platform 6.5 Grendel because my sizing die was not properly seated throwing the cartridge shoulders out of spec. The finished cartridges would not seat in the chamber and required firearm disassembly to remove the (live) stuck rounds. I checked many things before suspecting the cartridges were out of spec. This block did not pick it up at all. Very disappointed this has really no value at all except maybe as a paper-weight.