(e.) .220 Swift, Factory “PROOF” by Remington, Nickel Case, purple Dyed bullet and Case “R-P”H?S, JHP, *WARNING*, One Cartridge not a Box!

Description

One Cartridge, not a box, the picture of the box is for reference only.

One Cartridge not a box, picture of the box is for reference only!

*WARNING*: Proof cartridges are “High Pressure” do not fire in your firearm, or you may be injured or killed! 

One Cartridge Note a Box: .220 Swift “PROOF” Cartridge by Remington, made with new Remington Nickel plated Brass case with  Purple Dyed “R-P 220 SWIFT” Head-Stamp, and Purple Dyed JHP (Jacketed Hollow Point) projectile.

See other versions of this caliber, please see below in related items.

History of proof Cartridges:
Proofs are used to verify or “proof” the mechanical strength of a firearm before it leaves the factory, higher pressure then regular ammunition and should never be fire in your firearm!
The bright dark reddish wash or dye on the base (head stamp) and projectile with nickel case is the U.S. industry standard of identifying these types of cartridges.
Proofs are not normally available to the public, and should NEVER be fired out of you firearms.
History of .220 Swift cartridge:
The 220 Swift was developed by Winchester from the 6mm Lee case, introduced by Winchester in 1935, chambered in the Winchester Model 54 bolt-action rifle, and later in 1936 in the Winchester Model 70 bolt-action rifle.
The 220 Swift was an exceptionally fast cartridge for its time, given the powders available in 1935, and it is still one of the fastest calibers today with speeds over 4,100 feet per second, making it still a great varmint cartridge today.
Remington offered an electric primed rifle and cartridge in 220 swift, along with 25-250 Remington and 243 Winchester calibers in 2000. (Those cartridges will not work in a normal primed rifle.)
The popularity of the 220 Swift waned with the introduction of the Remington 22-250 in 1965; however it is still a great caliber.