Been reloading for close to 4 decades.
Most important is a visual inspection of the primed and powder charged cases, prior to seating the bullet.
Mass loading with a progressive press is great as long as you understand that the crucial verification of the volume of powder in the sized, primed and charged case is consistent before you seat the bullet.
If a progressive press allows this visual inspection then you are fine.
Avoid any possible distractions when reloading. The price could be very high if you ignore this earnest warning.
Once in 4 decades I double charged a 357 Magnum, with unique powder.
ONCE!
Fortunately it was in a Ruger Redhawk, which survived the firing of that round with no problem, but it sure was a wake up call.
We use a progressive press for pistol rounds when you plan on shooting a lot in one session, but most of everything I shoot these days are rifles, in .308, 30-06, and 7.62X54R.
I break down the 54R for the powder and bullet. Paid 8 cents a round two years ago for surplus. Loaded in my brass cases with boxer primers, means non corrosive, without the cleanup headaches.
My brother has enough lead on hand to cast 150,000 30 caliber bullets. Recovered lead would probably load another 80% of that number through each cycle.
regards
Mech
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