The charge/seat portion... honestly doesn't look much, if any, faster than what I get with my 550 + AutoThrower + AutoTrickler. I've never timed or videoed myself doing it though, so I might be all wet on that.
Maybe, but I'm not sure the AutoTrickler can dispense in 6 seconds from empty. Would be interesting to see the comparison. As I was starting 'from cold' and thinking about video things I wasn't quite at my slickest in that segment.
I needed to load some ammo for a local/club 3x600yd F-class match this weekend, so I figured I should actually try timing myself and see how fast/slow loading on the 550 really is. This is just the prime/charge/seat segment, with an AutoTrickler v2 + AutoThrower on an A&D FX120i scale, putting 24.0 gn (+/- 0.02) N150 in a Lapua case behind a B85.5 Hybrid, and reaching over and tapping the lap timer on my phone every time I completed a cycle.
Reality was a fair bit slower than I had expected... about 20 seconds per cycle, on average, plus or minus 5, and the trickler was definitely the limiting factor as far as speed. It sure *seemed* faster than that, with all the hand motions going on - moving the power cup, placing the case, placing the bullet, rotating the shell plate, priming, etc.
Adding a case feeder and such to the mix would reduce the amount of manual handling of stuff... but it'd need at least another powder scale/thrower/trickler (or something speedy like whatever
@rox is using) to keep up with it, if max throughput was the goal. I know a few people who have such setups for their PRS rigs... cool, but perhaps a bit more over-the-top than I'm willing to commit to personally.
Like I said before, I didn't really set out with the intent of breaking speed records - pretty sure a person who worked at it could probably do similar output with a tray of cases, a powder funnel, hand priming tool and an arbor press. I've been there, done that. It's a lot harder, for me at least, to maintain that kind of focus & throughput over several hundred rounds doing it all by hand - I usually have to take several breaks or mistakes start happening.
YMMV,
Monte