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.338 EnABELR

338 EnABLER



A while back, world-renowned ballistician and shooter Bryan Litz of Applied Ballistics contacted Derek Peterson of Peterson Cartridge and explained his idea for two new calibers that he believes will be high performers in the ELR (Extreme Long Range) shooting community … the .338 EnABELR and the .375 EnABELR.

The name “EnABELR derives from the combination of three concepts:

  • 1st En – representing “Engineered”
  • 2nd AB – representing Applied Ballistics
  • 3rd ELR – for Extreme Long Range

Litz’s premise was to create a caliber that is shorter and wider than the CheyTac calibers, but that holds almost as much powder. The theory is that the wider case will allow the powder to burn more efficiently, resulting in less, to no, unburnt powder build-up in the rifle barrel.

Peterson believed in Litz’s idea and agreed to take on the work to create the tooling for the commercial production of the EnABELRs. According to Peterson, “Designing a tool pack to manufacture casings that are simply a neck-down or neck-up of an existing “parent” case is pretty easy duty, and quite common. What is far less common is to make a whole new caliber that has no parent case. These EnABELRs have no parent case. They are an original design.”

Litz stated that he was very pleased with how quickly Peterson developed the tool pack to produce the casings and also with the efficacy of Peterson’s tooling designs. Litz reported that initial results with the EnABELRs are very promising. “The design seems to have achieved all the outcomes we set out to accomplish.”

For more information on guns chambered in the EnABELR calibers or ammo or chamber reamers, contact Applied Ballistics.

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.

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Extremely consistent, American-made brass rifle casings and ammunition, designed for long-distance shooters.