I've found the best way to get rid of that pesky crimp is with an 82-degree countersink. I bought this one at Sears in the mid-1980s. No longer available. I chuck it into my Black & Decker cordless and spin that troublesome little nuisance out in about three seconds. I find the best width to cut the chamfer is about 1/32-inch and a skosh. I find LC and PMC cases to be the ones that need a second kissin' more often than any other. Image is of .223Rem cases.
I may be doing things wrong , I have the RCBS swagger & have had only limited luck with it . I end using a drill bit to ream the primer pockets .RCBS primer pocket swager as it's affordable and mounts in the press for lots of leverage. It's not as fast as the Dillon but fast enough for small projects. If faced with a large amount or continuous need to open crimped primer pockets, would seriously consider the electric motor driven Dillon unit.
What seems to be the problem with using the swager? Will try to help.. . . I have the RCBS swagger & have had only limited luck with it . . .
On some , not all , I still have problems with the primers hanging up when I try to seat them . So , I end up jist hitting them lightly , reaming the burrs .What seems to be the problem with using the swager? Will try to help.
Thanks ,Originally had same issue when first started using mine. Found I didn't have the center push rod lowered far enough too completely force the case onto the primer swager. Second possible problem is not having the die screwed down far enough where the press has to over cam at top of stroke. Once I eliminated both of those issues only occassionally was there a case that needed touching up. Be careful and methodical while eliminating the various bugs. Its possible to bend the center push rod if the case is not specifically seated on the primer swager. Never been a problem for me but have heard of others who've bent there rod.