Bent rims after sizing

[Webster]

Having an issue with resizing 7-300win mag. ADG brass, the brass has been fired twice, and I went from using lanolin/alcohol mix on cases for lube to hornady one shot. I know some don’t like it, but it’s worked great for all my other cartridges. At any rate, I applied it like I normally do, and immediately had the first case stick. I pressed it out, cleaned everything, reapplied one shot inside the die and a bit more on the cases just for good measure. Some were still very sticky, but overall not terrible. However, after sizing 80 cases, about 60% of the rims are bent from pulling the cases out of the die. Has anyone seen this before? The only way I can prevent it is by applying so much case lube that it dents the case body.

I always used and recommended a very light viscosity petroleum oil but everyone resist using it. No-one lubricates machinery with lanolin. Pet oil has been the best lube for machinery for over 100 years. Exceptional film strength. I used to use a light vis synthetic I got from work. Now retired and I use a light vis petroleum oil based hydraulic fluid I bought from AutoZone. $8 for a quart. I roll on a pad. Extremely smooth feel running thru the press.

 

[jpmimproved]

I read the instructions thoroughly and followed them to the T. One thing I am seeing quite a bit here is that many people are waiting 20+ minutes, although the instructions recommend 1 minute. I have been loading for nearly 2 decades now, and this is the first time I have stuck a case since the first year.