longnkrnch wrote:I want to know more about this "side crimp" and how to achieve it. I'd like to add it to my repitroire some day.
Here's the Link to the achieve part of the question. It is one of the "stickies" at the top of this sub-forum.
Side crimping or whatever you wish to call it is nothing more than driving the case wall into a ring around the circumference of the bullet as opposed to driving the case mouth into a ring around the circumference of the bullet using the taper crimp. Properly executed and especially when into a cannelure or driving band groove n the bullet, it can provide tension only dreamed of using the dimensionally limited taper crimp. Drawbacks (IMHO): It distorts a portion of the bullet's bearing surface in the case of a smooth walled bullet. It scars your brass, usually for life, relegating them to a life of crime. Oops, I mean a life of side crimp service. If you really like sub-MOA groups, unlike the taper crimp, I've had a hard time achieving them with side crimps. For most hunting situations where the 450b is an appropriate caliber, it'll probably not matter. Look at the picture of the loaded round at the beginning of this thread and you'll get an idea of how the side crimp works. Somewhere buried in this sub-forum, back a couple of years, is some drawings of how it works, that are worth a thousand words. Getting folks to these vignettes of information get harder as every day goes by and the forum grows deeper in thread and post count. I'm supposed to be mining for them and linking them in my useful information sub-forum, but it takes time, time which I will have much more of come winter in MN.
Hoot
PS Someone recently asked me if more than one side crimp can be applied to a cartridge. From the above link: