{"id":1331,"date":"2024-09-25T23:18:41","date_gmt":"2024-09-25T23:18:41","guid":{"rendered":"https:\/\/tactical-dailynews.com\/?p=1331"},"modified":"2024-09-25T23:18:41","modified_gmt":"2024-09-25T23:18:41","slug":"reloading-crimping-rifle-accuracy","status":"publish","type":"post","link":"https:\/\/tactical-dailynews.com\/?p=1331","title":{"rendered":"Reloading: Crimping & Rifle Accuracy"},"content":{"rendered":"
<\/p>\n
\n
Photo: Massaro Media Group.<\/figcaption><\/figure>\n<\/div>\n

Here we discuss crimping techniques that can take your rifle\u2019s accuracy to the next level.<\/strong><\/h2>\n

Crimping a bullet in place might be the last phase of the reloading process, but it certainly isn\u2019t the least important. In a number of instances, it\u2019s absolutely necessary; other times, it\u2019s optional and, sometimes, it should be avoided altogether. Knowing which type of crimp to use is important \u2026 and knowing whether to use a crimp at all can be a complete game changer.<\/p>\n

Basic reloading techniques dictate that a straight-walled cartridge requires a roll crimp\u2014which curls the case mouth into the bullet\u2014to keep the projectile from moving deeper into the case under recoil or, in the case of a revolver, moving out of the case and locking up the cylinder.<\/p>\n

However, the use of a roll crimp requires a bullet with a cannelure, or a crimping groove, or else you run the risk of bulging the case, deforming the bullet \u2026 or both. If your chosen projectile doesn\u2019t have a cannelure, a taper crimp\u2014one which squeezes the case wall radially inward against the shank of the bullet\u2014is the only way to prevent damage to your case or projectile.<\/p>\n

\"crimping
The .45 Colt definitely requires a good crimp; in a modern revolver, the recoil will pull those bullets out of the case. Photo: Massaro Media Group.<\/figcaption><\/figure>\n

The handgun cartridges I shoot most\u2014.38 Special, .45 ACP and .45 Colt\u2014are all crimped in some fashion, I don\u2019t crimp bottlenecked rifle cases unless absolutely necessary. The lever gun cartridges\u2014at least those that use a tubular magazine\u2014get a good roll crimp in order to hold things in place, but I rarely use a roll crimp on my .308 Winchester, .300 Winchester Magnum, .470 Nitro Express or .22-250 Remington; the neck and its tension does the work for me.<\/p>\n