Buffalo Bore manufactures some of the highest quality ammunition for both the hunter and for your own personal defense. Made in Montana, Buffalo Bore Ammunition delivers both in performance and selection. They use only premium grade components and materials to produce ammunition that you know you can count on. Buffalo Bore is field tested in real world "over the counter" guns, not test barrels. When you pull the trigger, know that you have the ammo that will do the job..45 ACP +P ammo is externally/dimensionally identical to .45 ACP ammo and can be fired in any .45 ACP firearm that is in normal operating condition. However, the greater pressures and power of the +P ammo will give you greater slide velocity and if you are going to shoot more than a box or two of +P ammo, you should consider replacing your recoil spring with a Havier spring that gives roughly 4 to 6 lbs more spring weight than factory stock springs. A shock buffer might also be a good addition although it is not too necessary if you use the stronger spring.Specifications:Caliber: .45 ACP +PBullet Type: Jacketed Hollow PointBullet Weight: 230 GrainsRounds: 20 per BoxMuzzle Velocity: 950 fpsBullet Diameter: .451Muzzle Energy: 461 ft/lbsJacket Material: CopperCore Material: LeadCasing: BrassLow FlashReloadable