I am resizing 7mm/300wby brass and when I resize it it dents around shoulder. It seems to do it more on fired brass vers new brass. Here are a couple pics of it. Ive cleaned the die and it doesnt matter it still does it. Im using RCBS dies.
necchi said:Hydrolic dent;
too much lube, just lube the body lightly and brush a little inside the neck for the button.
SBS said:One more thing to check. Most FL sizing dies have a vent hole in the side of the die near the top of the threads. Make sure this hole is open using a small paper clip end or large safety pin.
necchi said:SBS said:One more thing to check. Most FL sizing dies have a vent hole in the side of the die near the top of the threads. Make sure this hole is open using a small paper clip end or large safety pin.
Good tip, sometimes we forget that.
The instructions that come with the dies recommends checking the hole,,,
DennisH said:Which spray were you using?