RCBS vs Autotrickler 

20fps on a 284 cal rifle shooting ELD-X bullets at 2900fps amounts to less than 5" at 1000yds. Granted, that's just velocity and lots of other stuff would just add to dispersion, but a 20fps spread over 95/100 shots would be amazing.

If you want THAT accurate l, your using a balance beam, and throwing away bullets because they are too far away from ADVERTISED GRAINS. Yes 180 grain bullets can range down to 175 upto 185 pretty common.

Enjoy your auto trickler, it works very well, especially after you tweak the drop speeds and transition time.

That's a good suggestion. As I currently have mine set up, there's no room for behind it. I could pull it out, but then I'm giving up bench space. And I definitely don't want to move the entire scale every time I use it, since I know it's stable and level where it is. I do stand by the criticism of the drain design, regardless. It's just not well thought out, IMO.

I just remove the hopper, then pick the trickler up of the scale and dump it out the back window into the hopper. Used to run the tubes but its faster to just pick it up.

@@Koelkop thank you for the tip. I’ve only had mine a short time still experimenting with everything.

I ran the AT at it's default settings, not "60%". I explain that I didn't tweak it, and I even have another video about what speed can be gained by tweaking it's settings. I'm actually working on a systematic process that I'll probably make a video on soon about tweaking the AT for optimal speed. My recent testing was averaging something like 10 second drops, but I have to work on the variance a bit. I think it's definitely possible to get it below 15 seconds a drop without significant overthrows. As far as emptying the AT, I completely stand by my opinion. It's the worst emptying system in a powder dropper on the market. The panels have no retention, and there's tons of open area that powder can come out of if you tilt it too much one way or another. I think in your case, the AT is a no brainer. But the CM is still plenty viable. It averaged 25 seconds per drop in this test, which is only 5 seconds per drop behind your "3 rounds per minute" pace. I'm not sure why yours was slower. Further, it's accuracy was fantastic. Not as good as the AT, but it can't be, as the scale doesn't have the resolution to be better. I would definitely recommend it over a manual setup for someone unless they were on a tight budget. It's way faster, because manual can drop just as fast but it ties you up while you're doing it. Plus, it's way easier to set it up and switch drop weights, like if you're running ladders or doing multiple calibers or loads. I do not think the RCBS is better than the AutoTrickler. It's not. But it's not a bad setup for the price, at all.

See the following video. This was just with the built in calibration and no extra tuning.

I don't blame the RCBS; I actually directly mention that it's as accurate as it can be given its scale's resolution. As far as finger grease and air movement affecting measurements, they aren't really a factor at this level of measurement (unless your fingers are very dirty or AC blows right at the scale, my AC didn't run during this test anyway). Plus, if you're taking the time to use the system fully enclosed and stabilized, you're giving up way more time than you'll gain by using the AT anyway. A kernel of H4350 weighs around 0.02gr, so you literally can't get more precise without splitting grains with a razor... But I'm not sure being able to measure to the milligram would actually achieve anything in the end for any practical real world application.

@@TechDregs You'd be surprised at how fast you can weigh samples including closing the chamber door. I used 20 platinum crucibles with carbon fiber that would be weighed after acid digestion and drying. From placing the sample on the balance, closing the door and the balance stabilizing took less than 20 seconds. It's all about getting into a rhythm. You showed the auto trickler displaying .06 grains higher than the RCBS V4, and that shifted a few times. You might not think skin oils are a big deal, but they are. Try the gloves or a pair pliers to handle the weight pan. It might surprise you. H4350 must be totally different than any of the Alliant Reloder powders, as there were always small pieces of powder that weren't sticks.

@@gungadinn The 0.06gr difference was just one observation, and could easily be explained by the RCBS not being able to weigh anything under 0.1gr. If it rounds a 0.04 down to 0.00, the deviation could be as small as 0.02 which is the limit of the FX120i's resolution. I tested for "drift" over the test and found that there wasn't any (the slope was actually -0.0005 per obs), so if the pan was getting heavier as I went, it didn't show up in this sample. I don't think oil buildup is a real concern over normal loading sessions, but maybe I'll do a finger gunk test to see how bad it can be.

Hahaha you must have endless amounts if time...

@@rkwjunior2298 I'll second that! My time is far more valuable than the extremely slow and tedious dinosaur method of beam scales. 🤣🤣