Buffalo Bore Heavy Strictly Business .357 Magnum 158-grain Jacketed Hollow Point ammunition (brand part no. 19C20) pushes the .357 Magnum cartridge harder than most factory loads dare to go. Buffalo Bore built the Heavy Strictly Business line for shooters who carry a steel-framed .357 revolver and want every bit of stopping power the cartridge can deliver, from J-frame snubbies to full-size duty guns. The load is safe to fire in any all-steel .357 Magnum revolver and puts no more strain on the gun than a standard .357 round, though it is not recommended for ultra-light alloy-frame revolvers. For concealed carry, home defense, or duty use, this is .357 Magnum ammunition loaded to do serious work.

Key Specifications

• The chambering is .357 Magnum, a proven defensive and duty revolver cartridge with decades of stopping-power credibility.
• The bullet is a 158-grain Jacketed Hollow Point, a defensive design built for controlled expansion at revolver velocities.
• The hollow point cavity opens on impact, expanding to transfer energy quickly instead of passing straight through.
• This is a Heavy-rated loading, carrying more velocity and energy than a typical off-the-shelf .357 Magnum round.
• The load is rated safe for all-steel .357 Magnum revolvers, including small-frame guns, though not for ultra-light alloy frames.
• The case is brass, giving reliable extraction and standard reloading compatibility.
• Each round costs about $1.71, priced in line with premium defensive ammunition.
• Each box holds 20 rounds, enough to train and still carry a full reload.
• Twelve boxes make up a full case of 240 rounds, a practical quantity for range days and long-term defensive stock.

Frequently Asked Questions

Is Strictly Business safe to shoot in a J-frame revolver? Yes, this load is rated safe in any all-steel .357 Magnum revolver, including J-frames, though it is not recommended for ultra-light alloy-frame guns.

What makes this a Heavy .357 Magnum loading? The Heavy line is loaded to higher velocity and energy than typical factory .357 Magnum ammunition while staying within safe pressures for all-steel revolvers.

How many rounds ship in a full case? Twelve 20-round boxes ship per case, for a total of 240 rounds.

Buy the Buffalo Bore Heavy Strictly Business .357 Magnum 158gr JHP

A defensive revolver deserves ammunition that hits as hard as the cartridge allows, and Strictly Business is built for .357 Magnum shooters who expect exactly that. Pair a box for carry with a case for practice, or browse more handgun ammunition built for defense and duty. Order from our Lubbock, Texas gun shop and it ships fast to your door.