The Fort Scott Munitions .308 Winchester 165gr TUI load is a box of 20 rounds of non-lead solid copper spun SCS ammunition. Fort Scott machines the bullet on precision CNC lathes, and it carries the maker’s patented Tumble Upon Impact design. On impact with water-based tissue the bullet is designed to tumble end over end, which Fort Scott credits for a more destructive wound channel. Velocity is listed at 2764 fps through a 24-inch test barrel. Fort Scott markets it for hunting, match shooting and self-defense.

Key Specifications

• The chambering is .308 Winchester, the designation Fort Scott lists for this load, so match it to the marking on your barrel.
• Bullet weight is 165 grains, the weight Fort Scott lists for this load.
• The bullet is a solid copper spun SCS Tumble Upon Impact (TUI) design, machined on a CNC lathe.
• The bullet is non-lead copper, so the load is a fit where lead-free ammunition is wanted.
• The TUI design is built to tumble end over end on contact with water-based tissue, creating a larger wound channel.
• Fort Scott lists a velocity of 2764 fps from a 24-inch test barrel, the reference figure for this load.
• The test barrel has a 1:10 twist, a reference point when you compare this load with your own rifling.
• Cartridge overall length is 2.79 inches, a figure to check against your magazine and chamber.
• The listed test load uses 38.6 grains of CMR 100 powder, the charge behind the velocity figure.
• Each box holds 20 rounds, a pack size that suits range testing and carry loads.

Frequently Asked Questions

How does Tumble Upon Impact work? Fort Scott describes Tumble Upon Impact as a patented design that makes the bullet tumble end over end when it meets water-based tissue, creating a more effective and destructive wound channel.

What velocity does Fort Scott list for this load? Fort Scott lists 2764 fps from a 24-inch test barrel with a 1:10 twist.

Does Fort Scott give any prep or handling guidance for this ammunition? Fort Scott recommends cleaning your barrel thoroughly before shooting solid copper or brass if you have been shooting other ammunition, since a clean barrel improves accuracy and performance with solid monolithic ammunition. It also notes that repeatedly cycling an unfired cartridge can cause the projectile crimp to fail and the bullet to loosen, more often with larger monolithic projectiles. For AR10 platforms that are not mil-spec, Fort Scott recommends polishing the feed ramp before use and checking the headspace of your firearm.

Buy the .308 Winchester 165gr TUI Solid Copper Ammunition

This box puts the Tumble Upon Impact design into a 20-round pack. Order from our Lubbock, Texas gun shop for fast, insured shipping, and see more Fort Scott Munitions rifle ammunition while you are here.