APS MKII quick loading shells

thingiverse

I was browsing their website and this idea seemed too good to pass up. No more fiddling around with wads and whatnot; just load up the BBS and I'm done. Edit: As of now, I'm marking this as a work in progress. I haven't printed it yet, but I've noticed that the BBS can fall out from the top. I plan to use a soldering iron to create a small nub at the front to prevent this and add some retention. There's also a small area of bridging inside the shell that shouldn't be an issue, but we'll see. If anyone beats me to the testing phase, please let me know. Huzzah! Edit: I printed it, and it was quite the opposite of what I expected. The BBS don't fit into the holes as planned. I was banking on a 5.95mm BBS having clearance in a 6.00mm channel. Nope! I'll increase clearance to 6.08mm. Edit: Tested, adjusted the diameter of the barrels. Nice sealed fit. With two rounds in each barrel, that's six rounds total. It has a ten-foot spread at fifty feet with a flat trajectory.