Large Pistol (LP)Primers

Primers are a key ammunition reloading component. They are needed to ignite the powder charge. There a seven primer sizes which differ by use (pistol vs. rifle ammunition), size (small vs. large) and force (normal vs. magnum): Large Pistol (LP)SP = Small Pistol Primers | SPM = Small Pistol Magnum Primers | LP = Large Pistol Primers | LPM = Large Pistol Magnum Primers | SR = Small Rifle Primers | LR = Large Rifle Primers | LRM = Large Rifle Magnum Primers.

Below you find a table with some common calibers / cartridges which use Large Pistol (LP) primers. Also find further below some common products in this primer size:

Common Cartridges using this Primer Size


CartridgeBullet DiameterPrimer Size
357 Automag357LP
38-45 ACP357LP
10mm Auto401LP
38-40 WCF401LP
400 Cor-Bon401LP
41 Remington Magnum410LP
44 Russian429LP
44 Remington Magnum430LP
44 Special430LP
445 Super Magnum430LP
45 ACP451LP
45 Auto Rim451LP
45 GAP451LP
45 Winchester Magnum451LP
45 Colt (Long Colt)452LP
45 S&W Schofield454LP
455 Webley454LP