I've had good luck with Lee Dies in .45 acp (carbide), 6.5X55mm
Swedish Mauser, 8X50mm Lebel, 6.5X50
Arisaka, and (I use) a 7.5X55mm
Swiss 'Collet-Die' to partially neck-size .30-40
Krag 'fired' cases.
I have stuff from various makers.
IMHO - No 'brand' is totally free of mistakes, with some calibers and on special order stuff.
Some military chambers have generous dimensions and were not made with Re-loading or Commercial Standards in mind. This makes Re-Loading Dies a challenge to manufacture!
Sometimes, you have to depart from the manufacturer's 'Instructions' to make ammo that will work and also give adequate cartridge-case life.
With 'bolt guns', Full Length Resizing usually 'over works' brass and 'throws away' the virtue of having 'fired' brass that is custom fitted to your rifle's chamber.
New brass usually comes F.L. Sized and ready for reloading. The case mouth will tension a projectile. Distorted case mouths are easily made right. They can be run slightly into a Die to just accept the 'expander ball'. IMHO - There is no need to run a new case fully into the F.L. Die.
Creativity and problem solving is part of the Fun!
p.s. I set the position of my 'decapping-pin, expander-ball & rod' by eye. I leave a bit of clearance to allow for variation in different makes of brass. (The decapping-pin just has to protrude enough to push out the spent primer).
BTW 'pocketshaver', what Mauser cartridge are you reloading?