The Nosler Assured Stopping Power .45 ACP 185gr JHP ammunition (Nosler part no. 51278) is a box of 20 rounds of .45 ACP handgun ammunition. Each round is loaded with a 185 grain Assured Stopping Power jacketed hollow point bullet and Nosler cartridge brass. Nosler weighs the powder charges meticulously, visually inspects and polishes the finished rounds, and checks each piece of brass for correct length, neck-sizing, chamfering, truing and flash hole alignment. Nosler rates this load at 980 fps and 395 foot-pounds of energy at the muzzle.

Key Specifications

• The chambering is .45 ACP, the single cartridge designation Nosler lists for this load.
• The bullet weighs 185 grains, the weight Nosler loads in this .45 ACP cartridge.
• The bullet is an Assured Stopping Power jacketed hollow point, a hollow point design intended to expand on impact.
• Muzzle velocity is 980 fps, which sets how flat the load shoots.
• Muzzle energy is 395 foot-pounds, the figure Nosler publishes for this load.
• The cases are Nosler cartridge brass, inspected for correct length and flash hole alignment.
• Velocity at 25 yards is 948 fps, the downrange figure Nosler publishes alongside the muzzle number.
• Energy at 25 yards is 369 foot-pounds, which shows how much of the muzzle energy the bullet carries at defensive handgun distances.
• Each box holds 20 rounds, a practical count for a range session or a sight-in.

Frequently Asked Questions

How many rounds come in the box? The box holds 20 rounds of .45 ACP.

What cartridge is this ammunition loaded in? It is loaded in .45 ACP, which is the single designation Nosler lists for this item.

How fast does it shoot? Nosler rates it at 980 fps at the muzzle.

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