if you're shooting FMJ, it's obvious your not concerned about accuracy anyway.
Smitty, when I'm loading up bulk stuff, accuracy
isn't 'the main' factor, quantity is (for me anyways).
I at least run new cases part way into my FL die. That makes sure the mouth is round. Then I inside chamfer the neck. That allows the bullet to start without shaving jacket material of the outside of the bullet.
Snuffy, the simple & cheap Lee universal casemouth expander die, does the task well, in preventing the shaving of bullet material, rounding the mouths and flaring slightly to ease bullet starting/seating. IMO. All in one quick operation.
Speaking of
Spray N Pray shooting, I have loads of fun plinking large falling plates at close ranges with a compensated 1911, accuracy isn't as critical as time, where the objective is to knock all the plates down in the fastest possible time.
Heck most of the time I ain't even aiming, just pointing and shooting. Using standard sights just burns up milli seconds, reflex optic sights are nice though.
Practice is what gets those plates to fall, and 500rds in a single session is not unusual, hence quantity. Prayn' prolly would help too, or atleast take the focus away, when having an off day. lol.
Ya got me all keen, now, to head out to the range and
'Brass up'.