If I have the option, I like to select the powder load such that a double charge will overfill the case. This avoids a double charge situation, based on advice from an old reloader. I have never done this except deliberately, but it is a simple precaution. He also used a paperclip, with a bent end to feel the bottom of the case perimeter; to reject worn cases. I have found some tired cases using this, and it isn't visible outside.
I thought you only loaded 6.5mm for the big guy. A .243 is big enough to be effective, good choice.
I have tried casting my own tips, and using gas checks on a reduced load; but I'm not too happy with it thus far. Need to commit more time to it I guess....
Liked the post, good information.
Double charge? I do a load development and determine the exact amount of powder that works the best as far as MV and accuracy.
Interesting, do you know what he's feeling for?
I've got 6.5 yes, and also larger calibres like .308 and greater. I don't say or show them all here, one never knows who's watching.
I'd like to do some casting but am not currently set up for it. A good skill I think.
Double charge is stupid, but if it overflows the problem is obvious. I do this, as he recommended; as an extra precaution.
He's feeling for the beginnings of a crack forming around the base of the case where the primer goes. It is especially apparent on high powered reloads like the 300 win mag, where the base skirt transitions to the normal case siding.
Casting can give you extra capabilities! They also have a metallized clay that can be sintered after forming!