What is the difference between 22 LR and 22 WMR?

In: Firearms

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1/1000 inch bullet diameter
16/1000 inch neck diameter
16/1000 inch base diameter
16/1000 inch rim diameter
365/1000 inch case length
457/1000 inch cartridge length

and depending on the powder used, the 22 Winchester Magnum Rimfire can have almost twice the muzzle velocity and muzzle energy as the 22 Long Rifle.

First answer by All Hat No Horse. Last edit by All Hat No Horse. Contributor trust: 1341 [recommend contributor]. Question popularity: 21 [recommend question]

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What is a wmr? What do the letters wmr mean? 22 caliber the WMR means what? What is the deffence between 22lr22wmr? Is your 22 wmr a regular 22 or a 22 magnum?