Ok simply I have a cm and am trying to use the 140gr matchkings my rifle wont extract unless I load the bullets to a col of 2.717 isthis to short or does the mk have to be seated this short? Help please
2.717 with a 140 smk is very short considering the short bullet length and bearing surface of this bullet. If your chamber is indeed that short I would have it taken to a smith and checked cause that's an excessively short chamber. In my experience 2.800 area is the place to start and have a happy load with the creed.
Sized no bullet 0.294 with bullet 0.298
Doesn't matter at this point. It's a neck thickness issue from his sizing 308 brass and not turning it. I am running 140 amax in my creed and 2.810 is .020 off the lands. That's what I was basing my thoughts off of and the 2.800 area is where most that I know that have a creed are running them.
not to mention if he is having a hard time closing the bolt on a 2.717 cartridge using the 140 I would still say that is a short chamber.