The Fort Scott Munitions TUI 10mm Auto 125gr Solid Copper Spun (brand part no. 10MM-125-SCV) is a match-grade handgun bullet engineered to be reassuringly effective for self-defense, without relying on traditional hollow-point expansion. Fort Scott Munitions machines this bullet as a solid, spun copper projectile designed to Tumble Upon Impact and create a dynamic wound cavity, with the company’s patented design penetrating targets deeply along the way. Loaded in full-power 10mm Auto, this round pairs Fort Scott’s tumble-based terminal design with a cartridge already known for extra energy. In handgun ammunition for self-defense, this is Fort Scott’s TUI loading in 10mm.

Key Specifications

• The chambering is 10mm Auto, a high-energy cartridge built for shooters who want more power than 9mm or .40 S&W.
• The bullet is a 125-grain solid copper spun projectile, machined rather than jacketed for barrier-blind reliability.
• The design is engineered to Tumble Upon Impact, creating a dynamic wound cavity instead of relying on expansion.
• This is a match-grade handgun bullet, built for consistent accuracy alongside its terminal design.
• The case is brass, standard for reliable extraction.
• Each box holds 20 rounds, a practical amount for practice plus a carry reload.
• Cases ship 25 boxes to a case, a useful bulk option for shooters training with their carry load.
• Cost works out to about $1.32 per round, reasonable for a specialty barrier-blind defensive load.
• This design penetrates targets deeply, part of what Fort Scott’s patented approach is engineered to deliver.

Frequently Asked Questions

How does Tumble Upon Impact differ from a standard hollow point? Instead of expanding, the solid copper bullet stays intact through barriers, then tumbles once inside soft tissue to create a dynamic wound cavity.

Why 10mm instead of 9mm for this bullet design? 10mm Auto’s higher operating pressure and energy pair well with the TUI design’s deep-penetration terminal mechanism, for shooters who specifically want that extra power.

How many rounds come in a box? Each box holds 20 rounds of 10mm Auto, with 25 boxes to a case.

Buy the Fort Scott Munitions TUI 10mm Auto 125gr Solid Copper Spun, 20-Round Box

A defensive round that can be counted on to punch through a barrier and still do its job is worth carrying, and TUI is built around exactly that scenario. Load your carry pistol with a round that doesn’t rely on expansion to work. Order from our Lubbock, Texas gun shop and it ships fast to your door.