I've done thousands of both 5.56 and 308 military cases . I started with the RCBS press mount swager ( SUCKS ) . Way to slow and needing to carefully guide each neck over the mandrel was hard to see when mounted in the press .
Then I got the Lyman hand tool that cuts them out ( SUCKS ) Again slow and fatigues the hands and fingers .
I did like the results of the cutting method so chucked the end cutting piece into a hand drill and away I went . Now , I'm in construction so I work with my hands and fingers are strong so this method works well for me . Super fast , Once you get the force needed and timing it's pretty fast . I can do one case every 2 or 3 seconds , so 1000-ish an hour and I usually do about 500 at a time and maybe 1000 a day or every couple days until I go through the whole lot .
I recommend trying that method since you already have everything you need at home now . I like the idea of a drill press but how many people have a drill press . I've been in construction ( own the company ) for 35 years and have a ridiculous amount of tools , I don't have a drill press :-(
That all said last year I bought the Dillon super swager and it's on a whole other level of greatness . If you have the money just get the Super swager . Short of having someone else doing it for you the Dillon super swager is the best way to go .
There is one thing to consider when using the super swager . It creates a rise/crater edge around the primer pocket .
EXAMPLE :
This is a case head I did a few flat strokes on a sanding stone before swaging to see if the case head is flat . Note how there is even and full area sanding on the case head .
Compare that to this sanded case head after swaging . You now can see the sanded ring around the the primer pocket that was pushed outward when swaging .
My best guestament on how much that craters out is about .001 to .0015 . Doesn't sound like much but that will throw off your head to datum measurement by that same amount . Once fired that will flatten back out . There is a possibility if the first swaging was not enough . When that crater is pushed back down upon firing it "could" narrow the diameter of the primer pocket a tad again . You will still be able to seat most primers but some may hang up from time to time .