Primers Seating Very Hard All of A Sudden

Yodie

FNG
Joined
Dec 26, 2021
Messages
17
22 GT, Alpha brass, 2x fired. This is 3rd time to seat primers in them, first two times went smoothly. Now that I’m trying to prime them now they are so tight it’s flattening the primers to get them seated.

Same priming tool I’ve used for the previous 200 priming on these cases.
Cases were deprimed, wet tumbled with stainless pins, dried, lubed, annealed, sized, walnut vibratory polished, blown off with air gun, now trying to prime and running in to this.
Same primers, Remington 7 1/2
Primer pockets are shiny clean, no obstructions, no carbon ring.

Thought it might be my Frankford hand priming tool, tried priming a random 6.5CM Lrp, 357 magnum spp, and a 41 magnum lpp, all went in smoothly with minimal effort.

I’m stumped on why they lockers got so tight that I can’t properly seat them.
 

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