ALPHA MUNITIONS – 6MM GT BRASS

Made In The U.S.A.

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Many customers have asked us to show which products are made in America, and we’ve begun working with our vendors to identify them. This information, however, is not available for all items nor does it imply that foreign merchandise is of lesser quality. We will continue to gather this information to assist our customers in making informed buying decisions, and will keep our website current with the latest information.

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return policy



applies to the product’s original owner along with proof of purchase. Any items returned within 45 days of shipment are entitled to a refund. Any items returned after 45 days of shipment will be issued store credit in the form of a Brownells Gift Card. If a Brownells/Sinclair product was purchased through another retailer as a new product we will require proof of purchase to replace or refund.  (Refund will be issued as store credit in the form of a Brownells gift card.)

The 6mm GT is a rifle cartridge design by George Gardner (owner, GA Precision) and Tom Jacobs (owner, Vapor Trail Valley Bullets) that optimizes cartridge dimensions for low SD's and extremely consistent performance both on the bench and in practical precision application (PRS style competitions). The 6mm GT features a 35 degree shoulder for trouble-free feeding, specifically with detachable magazine systems. No magazine inserts or modifications are required; just use standard out-of-box 308 Win. AICS or AW magazines. Optimal case efficiency nearing 100% volume usage @ 33-35 grains of Varget. Capable of reaching 3020-3100 fps with 103-105 grain bullets or approximately 3000 fps with 115's. The Alpha 6mm GT brass uses Small Rifle primers and ships in 100 count custom Alpha Munitions plastic cases with perforated bi-layer foam for protection of cases during shipping and can be used for loaded ammunition.
Each 6mm GT case produced by Alpha Munitions also incorporates the company's OCD with optimized case head technology, which is designed to lengthen primer pocket life, as well as the life of the case overall, even at higher than normal pressures and velocities.