Thread: Excessive head spacing 7mm RM - can it still be used

Thanks All.

Im just going to fire them and see, may throw the brass on the hotter ones away if it seem to thin.

Thought:
Brass has been stretch nearly a whole 1mm over 3 firings

Manufacture Highlands ammo's shoulder is 0.53mm back from fire formed
Then for the next firing i pushed it back 0.05mm
And now I've pushed this back another 0.36mm

Totaling 0.94mm on Average which seems like a lot.

gundoc is correct The distance to the lands will not have changed as spaced off the belt and i kept the same overall length, but pressure may have been effected due to reduced space inside the case or is pressure based on the size of the brass once it has expanded into the chamber shape?


Interestingly the cases haven't lengthen that much over the two resizing from 63.25mm to 63.45mm - 0.2mm (which is still well with in SAAMI tolerances so i haven't trimmed them)
I cut one to see how thick the walls were 1.4mm - not sure if thats thin?