Description
The Fort Scott TUI 308 Win 150gr load is a 20 round box of 308 Winchester ammunition from Fort Scott Munitions, an American company in Fort Scott, Kansas. It uses a 150 grain Solid Copper Spun (SCS) bullet with the company’s Tumble Upon Impact design, and Fort Scott lists a test velocity of 2904 fps from a 24 inch barrel. It is a lead-free option for one of the most popular hunting and general-purpose rifle cartridges in America.

Fort Scott TUI 308 Win 150gr Overview
The 308 Winchester has been a go-to deer cartridge for decades, and a 150 grain bullet is one of its most traditional weights. This load pairs that weight with a monolithic copper bullet that does not rely on expansion. 790 inches and loads it with a ball powder for consistent metering. At the published 2904 fps, it carries a flat enough trajectory for typical woods and field distances, and it offers a solid choice for deer and hogs where a lead-free bullet is preferred or required.
Because a 150 grain copper bullet is longer than a lead-core bullet of the same weight, it leaves less room in the case, which Fort Scott accounts for in its load data.
How TUI Works
Fort Scott’s patented Tumble Upon Impact (TUI) design works differently from a hollow point. Rather than mushrooming, the lathe-turned copper bullet is engineered with an off-center balance so it begins to yaw and tumble once it enters a target. A tumbling bullet presents its full length as it travels, creating a large wound channel while keeping its weight because it does not fragment or shed petals. The result is deep, consistent penetration with no lead in the projectile.

Non-Lead Construction
Because the bullet is a single piece of copper turned on a lathe, it contains no lead core. That makes it compliant in areas that restrict lead ammunition for hunting, and it reduces lead exposure at the range. Monolithic bullets are also longer than lead-core bullets of the same weight, so seating depth and case capacity are tuned specifically for each load.
Firearm Compatibility
This cartridge is made for rifles chambered in 308 Winchester. It is generally safe in rifles marked 7.62x51mm NATO, but always follow your firearm manufacturer guidance, and never fire it in a rifle chambered for a different cartridge such as 30-06 or 300 Savage. It is suited to bolt-action hunting rifles, semi-auto AR-10 and similar platforms, and lever and single-shot rifles chambered for 308. Fort Scott tested this load in a 24 inch barrel with a 1:12 twist; shorter barrels will produce somewhat lower velocity.

Accuracy and Testing
Every rifle and pistol has its own preferences. Before you hunt or carry with this load, fire several groups at your usual distance to confirm point of impact and function. Solid copper and brass bullets can shoot to a different point than lead-core loads, so a fresh zero check is always worth the time.
Recoil and Shootability
Recoil from a 150 grain 308 load is moderate and familiar to most hunters. In a typical seven to eight pound bolt-action rifle, it is comfortable enough for a full range session, and a muzzle brake or suppressor makes it softer still. In a gas-operated semi-auto, recoil is spread out and follow-up shots come quickly.

Made in the USA
Fort Scott Munitions designs and manufactures its bullets and loaded ammunition in Kansas. The company holds patents on its tumbling bullet technology and offers it across a wide range of handgun and rifle calibers, from compact pistol rounds to magnum rifle cartridges.
Storage and Care
Store ammunition in a cool, dry place in its original box, away from solvents and lubricants. Inspect cartridges before use and set aside any with dents, corrosion or loose bullets.
Specifications
- Brand: Fort Scott Munitions
- Caliber: 308 Winchester
- Bullet weight: 150 grain
- Bullet type: Solid Copper Spun (SCS) Tumble Upon Impact (TUI)
- Test velocity: 2904 fps
- Test barrel / twist: 24 inch / 1:12
- Count: 20 rounds per box
- Lead-free projectile
- UPC: 758381722089
- Made in the USA
Before You Buy
Federal law requires buyers of rifle ammunition to be at least 18 years old when buying from a licensed dealer. Some states and cities restrict ammunition purchases, require background checks or limit shipping, so check your local rules before you order.
Who It Is For
The Fort Scott TUI 308 Win 150gr is a great fit for deer and hog hunters who want a lead-free 308 load, hunters in areas with non-lead rules, and shooters who prefer a copper bullet that holds its weight on impact.
Buy the Fort Scott TUI 308 Win 150gr at MAG5 Firearms
MAG5 Firearms is a family-owned FFL in Collegeville, Pennsylvania. Order the Fort Scott TUI 308 Win 150gr online and we will ship it to you where state and local law allow, or browse our full selection of ammunition for more rifle loads. For factory details, visit Fort Scott Munitions.







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