Shotgun Forum banner

poor crimp on reloads

1360 Views 4 Replies 2 Participants Last post by  Bmaintz
I've messed around with both the final crimp adjustment and with the wad seating depth on my MEC sizemaster going back and forth between lead and bismuth reloads. Now I'm getting a crappy crimp. It's not a spiral or anything like that, just dented and/or wrinkled along the edge of the crimp

Anyone out there knowledgable willing to talk me through some adjustments so I can get back to the decent crimps I used to get. I would really appreciate it. Thanks.
1 - 5 of 5 Posts
I would recommend giving the folks at MEC a call. Their technical assistance representatives are very good at solving these little issues.---AFG
thanks, I've mostly corrected the problem, I think.

I've adjusted the wad pressure to where it measures nearly 40 pounds, despite the fact that mec says no pressure is needed with modern plastic components. I assume 40 pounds is not excessive and won't cause me problems, but does ensure good wad seating

I adjusted the cam and final crimp depth incrementally until the depth looked about right and the crimp was nearly always tight (no center hole) in the center

Still got a little messy crimp every second or third reload which I think I now have corrected by setting the starter crimp to push down a little further. It was providing a very minimal crimp start.

Reloads seem to be coming out really good now

I think I learned quite a bit about the adjustments, that should make it easier next time I set up for a different load
See less See more
It took me many hours of trial and error to set my MEC up, but i bought it used. The previous owner reloaded AA's and I reload Remingtons. Glad to hear that you have got it working. Good Luck and Good Shooting---AFG
I am thinking about buying a MEC Sizemaster, have a Lee Load-All II at the moment...
Can you measure the Height of the Sizemaster with the handle down.. ______ inchs...
I have a custom reload box that folds up & back for the Lee Load-All & would want to use the same box for the Sizemaster if possible.....
Many thanks,
1 - 5 of 5 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.