�At Peterson Cartridge, we frequently get requests to make casings in a new caliber, from trade shows we attend and from inbound phone calls,� according to Derek Peterson. �When requests for a specific caliber reach a tipping point, we add it to our development schedule. That�s what happened about five months ago regarding 6mm Creedmoor.�

Peterson explained, �We got a lot of requests for 6 Creedmoor. People were necking down 6.5 Creedmoor. Hornady doesn�t make it in small rifle primer (SRP). Starline does, but their flash hole is .080. The Lapua product, which a lot of people think of as the gold standard, has a flash hole of .060. So, the flash hole size in our 6 Creedmoor SRP is .060, the same as Lapua.�

�Casings with small rifle primer pockets do get more reloads than ones with large pockets,� continued Peterson. �There is more metal around the pocket, so they hold up longer. There is an advantage to this for competition shooters. The first three or so times a casing is fired the more it forms to the shooter�s chamber, which results in more consistent muzzle velocities. So the more reloads you get after that break-in period the better.�

�But we also make the 6mm Creedmoor in large rifle primer pockets,� Peterson stated. �The larger primers seem to be less temperature sensitive � they perform more reliably in cold weather. So for someone wanting to use their gun to hunt deer the LRPs may be the better choice.�

Additional Information

Warning: Only use Peterson Cartridge Co. casings in firearms in good condition, designed, marked, and chambered for this cartridge. Do not use Peterson Cartridge Co casings for �fire forming� or any other purpose other than what they were designed and tested for. Peterson retains no responsibility for the enclosed casings if they are used outside of the manufacturer�s recommendations.