PMC Bronze 308 Winchester 147 Grain FMJ-BT – 500-Round Case

PMC designates the 308B as an FMJ-BT — Full Metal Jacket Boat Tail — in its own product literature and the SKU suffix "BT" is consistent with this construction. The boat tail geometry reduces base drag and provides a modest improvement in ballistic coefficient compared to flat-base FMJ designs, which is relevant for shooters using this ammunition at distances beyond 200 yards. However, PMC does not publish a specific G1 or G7 BC for this load, so the practical advantage over flat-base alternatives is difficult to quantify precisely from factory data alone. For training purposes, the difference at ranges under 300 yards is minor.

No — in virtually all U.S. states, FMJ (full metal jacket) ammunition is prohibited for hunting deer and most other big game. FMJ bullets are designed to pass through targets without controlled expansion, which does not meet the ethical and legal requirements for humane harvest of game animals. If you are looking for a .308 Winchester load suitable for deer hunting, a soft point or bonded hunting bullet in the 150–168gr range would be the appropriate category to evaluate. This PMC load is explicitly a training and target round.

The 3-grain difference between 147gr and 150gr .308 loads is ballistically negligible for most practical purposes. At typical training distances, the point-of-impact difference between the two weights — when launched at similar velocities — is measured in fractions of an inch. Shooters who zero their rifle with PMC Bronze 147gr and then switch to a 150gr load of comparable velocity will generally not need to re-zero for range work inside 300 yards. The 147gr weight traces its lineage to the 7.62×51mm NATO specification, making it a historically common standard for this caliber.

7.62×51mm NATO and .308 Winchester are closely related but not identical cartridges. The 7.62×51 NATO chamber specification has slightly more headspace than a SAAMI .308 Winchester chamber. PMC Bronze 308B is loaded to SAAMI .308 Winchester specifications. Firing .308 Winchester commercial ammunition in a 7.62×51 NATO-marked chamber (such as many military surplus and some AR-10 pattern rifles) is generally considered safe by most sources, though it is always advisable to consult your firearm’s manufacturer documentation. The reverse — firing 7.62×51 NATO ammunition in a tight SAAMI .308 chamber — is the scenario that warrants more caution.

At approximately $20.42 per box when purchased by the case, the per-round cost lands near $1.02. Buying individual 20-round boxes of PMC Bronze at retail typically runs $21–$24 per box depending on the source, meaning the case purchase represents a genuine savings of roughly 10–20% depending on current market conditions. For shooters who regularly train with .308 Winchester and can store 500 rounds safely, the case format is the more economical option. The 25-box case format also reduces per-shipment shipping costs when ordering online.