Originally Posted by 32_20fan
Originally Posted by Terryk
Headspace on belt. Brass stretches, not many reloads, and it is expensive, long actions, bullet selection has improved in other calibers also. I have a selection of dies and calibers, if I won a 7mag, it would be sold.


On the reloading side, the headspacing/stretching becomes moot if you treat it as a beltless cartridge and headspace off the shoulder by means of FL die sizing adjustments or my favorite by using the Lee collet neck sizer. Some of my batches of 7RM brass have an excess of a dozen reloads with 160 gr loads in the 3000 fps regime.


I had a Mark X action barreled with a Hart varmint contour barrel and set the case headspace on the shoulder by necking the brass up to .30 caliber, and then back down to 7mm, by adjusting the F.L. die down until the bolt just closes with a bit of resistance. The blasted thing is scary accurate, but like everything else, I moved on to other stuff and haven't fired it in a decade or more.