Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
You'll be taken to Brownells to complete your purchase.
Hunter's Outpost earns a commission from affiliate links at no extra cost to you.
SKU: 100043464
Built for precision rifle shooters who want a cartridge case designed around consistency and smooth magazine feeding, this brass is intended for 6mm GT applications in both bench work and practical competition. The design emphasizes low standard deviation and efficient case use, with a 35-degree shoulder and compatibility with standard out-of-box 308 Win. AICS or AW magazines. It is aimed at shooters loading around the 33–35 grain Varget range and working with 103–105 grain bullets, where repeatable performance matters more than general-purpose versatility. As with any specialized brass, it is best suited to dedicated precision setups rather than broad field use.
6mm Gt
Cartridge use in precision rifle
35-degree Shoulder
Supports trouble-free feeding in detachable
Works Standard
Standard out-of-box .308 Win AICS
No Magazine
Inserts or modifications are required
Optimized Case
Dimensions target low SDs and
| Bullet Weight Range | 103-105 grain bullets |
|---|---|
| Cartridge | 6mm GT |
| Case Efficiency | Nearing 100% volume usage |
| Case Head Technology | OCD Optimized Case Head Technology |
| Case Type | Brass |
| Designed For | Bench and practical precision application (PRS style competitions) |
| Magazine Compatibility | Standard out-of-box 308 Win. AICS or AW magazines |
| Powder Charge Range | 33-35 grains of Varget |
| Primer Type | SRP |
| Quantity | 100/Box |
| Shoulder Angle | 35 degree |
| Velocity Range | 3020-3100 fps |
This is 6mm GT brass from Alpha Munitions, intended for the 6mm GT cartridge.
Yes. The description says it feeds with standard out-of-box 308 Win. AICS or AW magazines, with no magazine inserts or modifications required.
The 6mm GT features a 35 degree shoulder, described as supporting trouble-free feeding, especially with detachable magazine systems.
The description notes optimal case efficiency nearing 100% volume usage at 33-35 grains of Varget.
The description says it is capable of reaching 3020-3100 fps with 103-105 grain bullets, or approximately 3000 fps.