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The ROLL Crimp Lives.
Shotgun shells were once made of paper, and crimps were rolled. If you handloaded, one of the basic tools on every bench was a hand-cranked roll-crimper, now considered a relic.
When the factories introduced the much easier to manufacture six- and eight-fold star crimps, advertising campaigns demonized the roll crimp and the overshot wad. We were told that the old overshot wad had a tendency to blow patterns, while the star crimp just unfolded and let loose its load. Well, considering how much game and how many clay pigeons were successfully shot with roll-crimp shells, the old bugaboo about blown patterns fits into the category of "it ain't necessarily so."
Today, the roll crimp is still employed by most factories for slug loads as well as in specialized premium shells like those loaded by Polymag and Polywad. More importantly, given the confiscatory policies of our British brethren, ...
- The mother lode: shotshell reloading never had it so good.(SHOTGUNNER)
- Magazine article from: Guns Magazine Bodinson, Holt November 1, 2006 700+ words
...handloader. There are some advantages to a roll crimp using only 1/4" of the hull to form...a 2 3/4". More importantly, a proper roll crimp combined with a frangible plastic overshot wad is tighter and more consistent than a folded...
- A tale of two turkeys: there's more than one way to skin a blackpowder...
- Magazine article from: Petersen's Hunting Towsley, Bryce April 1, 2004 700+ words
...employs a plastic shot cup designed for a 3 1/2-inch 12-gauge shotshell, and the shot is held in place with a styrofoam overshot wad. With Hodgdon's Triple 7 and a 209 primer, Knight reports that the muzzle velocity is 1,100 fps; by comparison, Remington...
- Wild wings & white smoke: muzzleloading shotguns can add an extra kick to your...
- Magazine article from: Petersen's Hunting Simpson, Layne December 1, 2003 700+ words
...ramrod to push the wad snuggly against the powder charge, drop in the shot charge and then hold it in place with a thin overshot wad of cardboard or Styrofoam. A plastic wad seldom works as well with the lighter powder and shot charges recommended for double...
- Gun show treasure. (Shotgunner).
- Magazine article from: Guns Magazine Bodinson, Holt May 1, 2003 700+ words
...are seated over the primer with the press. Then one scoop of No. 9, 10, 11, or 12 shot is added and a "milk carton" overshot wad is seated. Using No. 12 shot, this load patterned nicely at 30 feet through a modified choke. If a little more power...
- Crimping your style.(Reloading Bench)
- Magazine article from: Handguns Sweeney, Patrick August 1, 2005 700+ words
...READ LOTS ABOUT THE NEED FOR A "TIGHT ROLL CRIMP. TIMES AND TECHNOLOGY CHANGE, AND I...I'M READY TO DITCH THE LAST OF MY ROLL-CRIMP DIES AND GIVE IT UP ENTIRELY. FIRST...Why did the old-time loaders use a roll crimp? As near as I can tell, it was the...
- Crimping.
- Magazine article from: Handguns SCHNEIDER, GEOFF January 1, 2001 700+ words
...bullet out of the cartridge case. The roll crimp resists this force. As an added benefit...normally works well enough with either the roll crimp or the taper crimp, but is hard for...adjustment. For the best crimp using a roll crimp, and noting the large change with only...
- Adjusting dies: the procedure for adjusting loading dies is straightforward,...
- Magazine article from: Guns Magazine Petty, Charles E. March 1, 2006 700+ words
...then set the overall length. With a roll crimp it's a little different because we...and see where things end up. With a roll crimp you will feel resistance to the forming...It is hard to quantify the amount of roll crimp to apply and most of the time it is easiest...
- Old reliable: the .38 Special.(Reloading Bench)
- Magazine article from: Handguns Sweeney, Patrick October 1, 2004 700+ words
...taper crimp and a properly sized belling stem. I know that a roll crimp is traditional and in some applications in other calibers...taper crimp is more forgiving of differing case lengths than a roll crimp. Crimp into the groove or into the bullet-bearing surface...
- The .500 Wyoming Express: a powerful new .50-caliber single action from Freedom...
- Magazine article from: Handguns Pearce, Brian February 1, 2007 700+ words
...WE belt serves to control headspace, which allows a heavy roll crimp to be applied. The .500 WE generates enough recoil to require...cartridges, in either factory loads or handloads, to have a heavy roll crimp to prevent bullets from jumping or "walking" out the end...
- Questions & answers.
- Magazine article from: Handguns John, Jeff December 1, 2003 700+ words
...Auto-pistol loads do require a crimp to perform their best. Formerly, reloading dies for auto pistols came with the same roll-crimp die as used for revolvers and, if applied heavily, could affect the way the case headspaces. Sometime in the late 1980s...
Source: HighBeam Research, The ROLL Crimp Lives.