Description
The Buffalo Bore 10mm 200gr FMJ Flat Nose load is part of the Buffalo Bore Heavy 10mm line, designed to bring out the full potential of the 10mm Auto cartridge. It pushes a 200 grain full metal jacket flat nose bullet at about 1,200 fps, producing roughly 639 ft-lbs of energy. Each box holds 20 rounds.

Why Choose the Buffalo Bore 10mm 200gr FMJ Flat Nose
Buffalo Bore built its heavy 10mm ammo line in response to customers who wanted the cartridge loaded the way it was originally intended. According to the company, these loads operate at standard pressures and are safe in any standard 10mm pistol in good condition, even though they deliver far more energy than typical factory 10mm loads.
The flat nose penetrator design is the point of this load. A flat-nosed FMJ does not expand; instead, it crushes a wide channel and drives straight and deep. That makes it a favorite for woods defense ammo, where penetration through heavy muscle and bone matters more than expansion.
Buffalo Bore uses flash-suppressed powders so a shot fired in low light is less likely to affect your vision.
Practical Notes for the Buffalo Bore 10mm 200gr FMJ Flat Nose
Full-power 10mm loads generate stout recoil and pressure. Buffalo Bore notes that some autoloaders may show wider velocity spreads with these loads because the slide can begin to open early, and it recommends a stiffer recoil spring if extreme spreads exceed about 50 fps. Test in your pistol and consult your maker before changing springs.
As standard pressure 10mm, the load is appropriate for 10mm pistols and revolvers in good condition. It is not a +P load, but it is a heavy, hard-hitting round, so expect more muzzle flip and recoil than range ammunition.
Hard, non-expanding bullets penetrate deeply and can exit the target and continue a long way. Know your backstop in any defensive or hunting situation, and check state rules for handgun hunting before using it on game.
Buffalo Bore 10mm 200gr FMJ Flat Nose Specifications
- Brand: Buffalo Bore
- Line: Heavy 10mm
- Item Number: 21A/20
- Caliber: 10mm Auto
- Bullet: 200 grain full metal jacket flat nose (FMJ-FN)
- Velocity: 1,200 fps (manufacturer rating)
- Energy: 639 ft-lbs
- Pressure: standard (not +P)
- Powder: flash suppressed
- Rounds per Box: 20
- UPC: 651815021010
Who Should Carry the Buffalo Bore 10mm 200gr FMJ Flat Nose
Hikers, anglers and hunters carrying a 10mm in bear or big predator country often choose the Buffalo Bore 10mm 200gr FMJ Flat Nose because the flat nose FMJ penetrates reliably. It is also a solid choice for handgun hunters after hogs and other tough game at close range.
For home defense in populated areas, an expanding hollow point is usually a better choice because it reduces the risk of over-penetration. Premium full-power ammunition also costs more than practice ammo, so most shooters train with lighter loads and verify function with a box of this one.
Browse the MAG5 Firearms ammunition selection for more 10mm loads, and visit Buffalo Bore for full load information.
Store ammunition in a cool, dry place and rotate carry ammunition periodically, since repeated chambering of the same round can cause bullet setback.
Who it is for: 10mm owners who want a heavy, deep-penetrating non-expanding load for woods defense and handgun hunting. Follow all federal, state and local laws when purchasing and transporting this ammunition.






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