For the longest I've been reloading off the rcbs kit loading block and plastic funnel.
while it has served me well, here are the issues I run into:
-universal blocks are too shallow and cases can tip over.
-universal funnel: same thing. If you look at one, you'll notice "steps" where the case mouth meets. If you're not care ful and you tip the funnel you can spill powder and not know it.
like I said earlier, jon's kit addresses the modern "multi caliber" reloader.
one funnel and drop tubes to handle any caliber. Interchangeable caliber heads designed to give you a nice snug fit over the case mouth so you don't lose any powder nor can you stack tolerances against your favor.
Of course theres the the lack of static build and inherent safety but I consider those secondary selling points. We're not dealing with black powder.
*AJ, looks like it fits right above shoulder / case mouth junction. I tested it on just two cases and it seems to be a really close call. Unsure if the funnel is resting on case mouth or if it's stopped at the junction; either way extremely close fit.
And as as stated I can put a 260 Remington lapua case in his loading block WITH one three inch drop tube and tilt the tray at a 30-45 degree angle and nothing will fall off.
i only wish Jon made 100rd loading blocks.
***lastly I have a buddy who makes loading blocks out of wood. Here's a link for a cheap and nifty option for those looking for loading blocks that are caliber specific.
https://www.etsy.com/listing/495779316/reloading-block-loading-block-reloading guy is chris Phillips and does good work.