July 24, 2014Civilian Marksmanship Program▸Armorers Corner▸Commercial Ammo
Commercial Ammo in Garands
I want to use commercial ammo in my Garand. What concerns should I be aware of?
There are several types of 30-06 commercial ammunition that are represented by their manufacturer as being safe for use in all rifles including semiautomatics. Most manufacturers have a website where you can read about the different cartridges and their compatibility, advantages and appropriate applications. CMP currently sells and stocks some commercial match grade 30-06. We currently use this same round in CMP events with excellent results. Our ammunition can be purchased on our E-Store, mail order, or over the counter in our stores.
Regarding modifications that you can make to your rifle to make it adaptable to a wider variety of 30-06 loadings: there are several variations of an adjustable lock screw that are available from several online sources. This replacement screw allows the venting of some of the pressure in the gas cylinder. The screw is adjustable and allows the shooter through trial and error to find the exact amount of venting needed to ensure reliable extraction and feeding but prevent unnecessary abuse. These adjustable lock screws are not legal for CMP John C. Garand Matches.