Trapshooters Forum banner

MEC 9000G Camcrimp issue

1878 Views 15 Replies 9 Participants Last post by  joe kuhn
I was reloading yesterday and everything was going as it should. All of a sudden I was getting bad crimps from the camcrimp die. I have included several photos of what it is now doing. Messed with it some but no luck. Has anyone else had this issue?

Attachments

1 - 16 of 16 Posts

· Registered
Joined
·
2,399 Posts
Hard to say but it appears that the center section of the crimp station is going down inside the hull then the crimp starts to form around it. I have no idea what is out of time or sequence.
Might be a good time to call MEC...they are good!

Let us know, I'm interested.
Jim
 

· Registered
Joined
·
81 Posts
Discussion Starter · #6 ·
Thanks for the replies. I ran out to the garage and found that in fact the pre-crimp die was not closing the top enough, causing the problem. I now have a large hole in the center of the hull, and it seems to be crimping deeper. I have attached several more photos. One photo shows a Nitro hull that I reloaded before all of this started.
 

Attachments

· Premium Member
Joined
·
607 Posts
assuming the final crimp is not actually broken...
The hole in the center means the cam is down too far.
The roll crimp at the outer edge now looks too deep. That rim should be only 50mil and it look deeper than that.
So back off on the center punch screw until the edge is about .050". Then lift the cam until the hole is gone.
I also saw some buckling on the sides of your shells. That also means the center punch is too deep.
It would help if you posted a photo of your pre-crimp.
 

· Registered
Joined
·
4,110 Posts
It appears your stack height is not correct to me. By any chance did you change wads or get some mixed together.
You do have multiple problems. Obviously your pre-crimp is not set correctly. Plastic cases do have a memory but you need more pre-crimp.
I can't imagine how you can get a shell as in pic # 1718 to have the crimp to fold past the shot like it is. Unless you have no wad, wrong wad, or the wad has collapsed. The same goes for pic #1724. the center punch in the final crimp needs to be adjusted up. It is either crushing the wad or the wad is not correct.
 

· Registered
Joined
·
81 Posts
Discussion Starter · #10 ·
Thanks for all of the input, and I will try some adjustments tonight. Someone asked me to include a photos of the pre-crip which I have attached. The recipe for this load is:
Gun Club or STS hull
17.6 grns of IMR Red
Green Duster Wad
1oz shot
This should produce 1200 fps.
 

Attachments

· Premium Member
Joined
·
607 Posts
The pre crimp looks OK. Could possibly be a little tighter but certainly doesn't explain what was happening in your final crimp. I don't know anything about your wad but I was getting nice flat crimps using CB8118 (Fig 8 clone) with both a high density (WSH) and lower density (WST) powder. You might measure the shot depth to upper edge of hull before pre-crimp and report the height of your wad.

I like to test a load on my 600 JR before trying it on the 9000 where things are nice and controllable. If I can't get it looking good on the 600, no point trying it on the 9000.
 

· Registered
Joined
·
474 Posts
I would check to make sure that the crimp punch is tight. If everything was fine and then all the sudden it wasn't in the middle of a loading session, I'd be looking for something obviously broken or loose on the crimp depth station. That is station 5.

Also, the pre crimp could come down some. Per the mec manual it should be adjusted such that a primer will not fit in the center hole.
 

· Registered
Joined
·
1,167 Posts
You snapped a bolt. Been there done that. Everything has slipped on the press. Check all the bolts to see if they pull out. Visual inspection probably won't see anything. Use a wrench on each end and see if you snapped one or more.
Start with the main bolts at the top and then work your way down.
That's my story.
Line Tool Gun barrel Font Event
Wood Flooring Rectangle Parallel Tool

Good luck
 

· Registered
Joined
·
1,167 Posts
If it is a snapped bolt, order one from MEC. The replacement bolts shown in the pictures above are Grade 8 bolt from the hardware store. In time, it will break also. The bolts MEC now sends out have about half the thread length of the bolts shown above. The full width shaft of the bolt extended past the friction/fatigue point shown on the broken bolt. To date I have not broken one of the new bolts.

Good luck.
 

· Registered
Joined
·
81 Posts
Discussion Starter · #15 ·
Many thanks for all the suggestions and all that commented! No broken bolts but some did need snugged up. After about an 1 1/2 hours and 30 test shells, the problem was the pre crimp and the camcrimp die had gotten way out of adjustment. Now the joy of taking the shells apart. Here are the last 3 hulls that were tested.
 

Attachments

· Sponsors a Reloaders for Youth Program
Joined
·
13,003 Posts
Many thanks for all the suggestions and all that commented! No broken bolts but some did need snugged up. After about an 1 1/2 hours and 30 test shells, the problem was the pre crimp and the camcrimp die had gotten way out of adjustment. Now the joy of taking the shells apart. Here are the last 3 hulls that were tested.
Great. Next time, if there is a next time, it'll be a lot faster for you. At least you know what to check now to be sure it doesn't get out of tune.
 
1 - 16 of 16 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.
Top