Buffalo Bore Buffalo-Barnes Strictly Business 10mm Auto ammunition (part no. 21D20) loads the 155-grain Barnes TAC-XP bullet as a full-power tactical round built within SAAMI specs, so it runs safely in any 10mm pistol on the market. Buffalo Bore pairs the long, all-copper TAC-XP with a muzzle velocity around 1350 fps, trading a little top-end speed for a bullet that holds together and drives deep. The TAC-XP’s lightweight, all-copper build eats up powder capacity compared to a jacketed lead bullet, which is why Buffalo Bore’s own real-world testing runs slightly behind the ballistic chart numbers other loads advertise. For shooters who carry 10mm for its power and want a bullet that expands and penetrates instead of fragmenting, this handgun ammunition is Buffalo Bore’s answer.

Key Specifications

• The chambering is 10mm Auto, giving full-power performance that runs safely in any SAAMI-spec 10mm pistol.
• The bullet is a 155-grain Barnes TAC-XP, an all-copper hollow point built for controlled expansion.
• The TAC-XP’s petals peel back on impact, expanding reliably while holding together, driving a wide wound channel deep into tissue.
• The bullet is lead-free, an all-copper design that avoids the fragmentation and fouling of traditional jacketed lead bullets.
• Muzzle velocity runs about 1350 fps in Buffalo Bore’s own real-world testing.
• The cases are brass, running reliably through the extraction and ejection cycle of any 10mm pistol.
• Each box holds 20 rounds, enough to run a full range session and still carry a reload.
• Boxes ship 12 to a case, totaling 240 rounds for shooters who buy in bulk.
• At roughly $2.26 per round, the price reflects the all-copper bullet and full-power loading behind it.

Frequently Asked Questions

Is this load safe in every 10mm pistol? Yes, it is a full-power load built within SAAMI specifications, so it runs safely in any pistol chambered in 10mm Auto.

Why does the TAC-XP run slightly slower than the advertised ballistic chart? The long, lightweight all-copper bullet takes up more case capacity than a jacketed lead bullet of the same weight, and Buffalo Bore’s real-world velocity testing reflects that trade-off.

What is the TAC-XP bullet designed to do? It is an all-copper hollow point that expands on impact while holding together, driving deep, reliable penetration without fragmenting.

Buy Buffalo Bore Buffalo-Barnes Strictly Business 10mm Auto

Buffalo Bore built this load for shooters who carry 10mm because they want a bullet that does not quit halfway through the job. The TAC-XP expands and holds together instead of shedding pieces, which is exactly what you want whether the target is two legs or four. Order from our Lubbock, Texas gun shop and it ships fast to your door.