Yes. This. Clean dies. Maybe in a sonicator if you have accessToo much sizing lube or a plugged vent hole in your sizing die.
Yes. This. Clean dies. Maybe in a sonicator if you have accessToo much sizing lube or a plugged vent hole in your sizing die.
I've had this exact same problem but with normal brass. The cure for me was way less lube on case before sizing. Cured my problems and that was 5 years ago.So, on my 300 PRC ADG brass after full length resizing once fired new brass I have 10% of the 100 dimpling at the shoulder. My first thought is what the heck went wrong on my part. After inspecting dies etc I can't find anything out of the ordinary and have never had it happen with any other brass.
I honestly can't figure out why it would do this. Maybe to hard ? If that's a possibility. Not having enough give when resizing on specific individual ones.
Thoughts ?
Not necessarily. Even with a good pattern of lubricating, and if you are using the pad to roll the cartridges on, what could happen is just a little more pressure, on one cartridge, while rolling could actually build a wave of lubricant in front of the cartridge, kind of like Kneading dough. That scenario could be very difficult to control without just trying to visually look at every cartridge. If you have developed a very good routine, one still has to be careful when re-lubing the pad when it will be the most wet. Still could happen at anytime with just a little more down pressure than all the other cartridges. I can not say this is the absolute problem, but certainly something to watch out for.I guess I'm a little puzzled due it being so random. If there was to much sizing lube it would be a continual thing happening on everyone from the start of excessive build up. That is not the case and it's rather random
^^^^Too much sizing lube or a plugged vent hole in your sizing die.
So, on my 300 PRC ADG brass after full length resizing once fired new brass I have 10% of the 100 dimpling at the shoulder. My first thought is what the heck went wrong on my part. After inspecting dies etc I can't find anything out of the ordinary and have never had it happen with any other brass.
I honestly can't figure out why it would do this. Maybe to hard ? If that's a possibility. Not having enough give when resizing on specific individual ones.
Thoughts ?
100%Too much sizing lube or a plugged vent hole in your sizing die.
I had a fraction of a piece of corn media once make it into my sizing die. That wouldn't typically have a random impact but if you're talking about just nudging the shoulders, some can make it through with little to no shoulder contact. I agree with the others that lube is the likely cause, just one other thing to eliminate as an issue.100%
I'll have to check mine but I'm pretty sure all my Whidden sizing dies have a vent hole.I have a Whidden FL sizing die with no vent hole that I had to stop using because of this. It happened on Bertram brass that was pretty hard. I bought a Redding die and have not had any issues since. Im not sure if they forgot the vent hole or if Whidden just doesn't use them but I would definitely check to make sure yours is clean. I tried several different types and very small amounts of lube and it just kept happening.
Or just pour boiling water thru it!Yes. This. Clean dies. Maybe in a sonicator if you have access
Try backing die off a thousands, see if betterSo, on my 300 PRC ADG brass after full length resizing once fired new brass I have 10% of the 100 dimpling at the shoulder. My first thought is what the heck went wrong on my part. After inspecting dies etc I can't find anything out of the ordinary and have never had it happen with any other brass.
I honestly can't figure out why it would do this. Maybe to hard ? If that's a possibility. Not having enough give when resizing on specific individual ones.
Thoughts ?