If you want to resize them without decaping just pull the decaping pin out of the die (can’t be done with lee dies as the decaping pin and expander ball is one peice)
They need to be sized after pulling as others have said you neck Tension will be all over the place
Accuracy will be all over the place as a result
On top of this if you do find a good load with the pulled brass you can’t repeat it as you dies will provide different neck tension when sized
If it were me talking from my 16 years loading experience
I would pull the rounds
Empty them as much as possible
Decap them ether with a full length die or universal de cap die (my choice i size after cleaning )
Clean the brass ultrasonic or tumble
Then you are back to square one ready to load from scratch that way you can Guarantee no power left or a fuck up with your swag (Scientific wild ass geuss) as to how much powder is still in the case if you Waigh the kernels of powder they are not consistent in waight so simply counting how meny is not really a good option (if you’re looking for Precision probably wouldn’t make enough Difference to be a danger) id still avoid it though
Yes you loose the primer but shit happens btw in 16 years of reloading I have decaped 100’s of not 1000’s of live primers
Never had one go off touch wood always wear safety glasses and ear muffs just in case as those suckers are actually pretty noisy when they go off (set a few off on Purpose over the years
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