Have noticed lately a couple of you mentioning cam over as evil and to be avoided.
Mildly curious as to why?
I do not often need to do any shoulder bump or FL sizing, so cam over isn't often even a consideration.
But, when I do need to shoulder bump or FL size, I much prefer to have a firm, positive cam over rather than any gap between shell holder and die. Just eliminates potential variables, is how I see it. Taking out any slack and getting firm contact between shell holder and bottom of the die provides a mechanical stop that assures every case is getting precisely the same amount of persuasion from the die.
To me, leaving any gap, means you better have your lube program really dialed in. Which is not hard to do, but simple lube variation can easily lead to variable sizing operation since there's no mechanical stop via the shell holder. Again, not hard to deal with, but, it needs to be dealt with. Whereas a solid cam over, this is a non-issue, no room for a variable to be introduced.
I'm sure you guys have this all figured out, not trying to start anything. I know you can get very consistent results without any cam over. Just, like I said, curious what is the potential harm or variable introducing I am not seeing with cam over that you feel it's best avoided?
- DAA
Mildly curious as to why?
I do not often need to do any shoulder bump or FL sizing, so cam over isn't often even a consideration.
But, when I do need to shoulder bump or FL size, I much prefer to have a firm, positive cam over rather than any gap between shell holder and die. Just eliminates potential variables, is how I see it. Taking out any slack and getting firm contact between shell holder and bottom of the die provides a mechanical stop that assures every case is getting precisely the same amount of persuasion from the die.
To me, leaving any gap, means you better have your lube program really dialed in. Which is not hard to do, but simple lube variation can easily lead to variable sizing operation since there's no mechanical stop via the shell holder. Again, not hard to deal with, but, it needs to be dealt with. Whereas a solid cam over, this is a non-issue, no room for a variable to be introduced.
I'm sure you guys have this all figured out, not trying to start anything. I know you can get very consistent results without any cam over. Just, like I said, curious what is the potential harm or variable introducing I am not seeing with cam over that you feel it's best avoided?
- DAA