I crimp cast bullets, levergun ammo and the biggest DG cartridges. In some instances the crimp is as much for helping to hold heavy compressed loads from pushing the bullet back out as anything but sometimes its just to cancel the flare that straight cases sometimes need or just to mark them as the final product, the ones that are going on the plane. I also crimp all solids because when using solids down and soft up the solids could conceivably get a lot more pounding than normal by just topping up the mag after each animal.
For the most part, if a bullet moves its because of inadequate neck tension and not because of the crimp or lack of crimp. Many of my favorite bullets don't have crimping grooves anyway.
For the most part, if a bullet moves its because of inadequate neck tension and not because of the crimp or lack of crimp. Many of my favorite bullets don't have crimping grooves anyway.
