n0mad187

Most modern pistol cans are user serviceable and not fully sealed. Those cans can be cleaned. I haven't noticed any lead build up as a result from running FMJ's. The majority of build up in cans I have examined has been carbon, not lead. With the exception being 22lr cans. I have one sealed can I use for PCC/SMG guns, but it is also rifle rated, so a few rounds of full power 308 tends to shake loose any build up. I played around with plated projectiles for a few years, and I could never get good accuracy or consistency, I'd always end up with at least one bullet out of 50/100 tumbling. I primary shoot uspsa, so the accuracy mattered to me. If you aren't using mixed brass, and very diligent with your reloading practices you may have better luck than I did. I typically load 10-20k a year and it's just not worth it. I wouldn't personally trust plated projectiles that I loaded to not tumble or cause issues in my can. As always I'm talking about my personal experience and YMMV.

I would shy away from plated projectiles when using a can personally. If you are using the mixed brass the varying case thickness can overcrimp and scoring of the plating. That can lead to jacket/plate separation and baffle strikes. In addition Berrys in particular are very soft, which sometimes can lead to feeding and set back issues, and in the case of open bolt guns out of battery problems. I personally would recommend sticking to a FMJ for those sorts of applications. YMMV

Hello, I'm new to the forum and wanted to share a couple of side projects I've worked up my for my Madsen M-50. The sights on the gun kinda suck so whipped up a RMR clamp on mount in cad and printed it out. Despite the mount being made of PETG the gun is so light recoiling and the sight so light is has held up with no issue. I have probably run it through around 12+ local USPSA matches in PCC over the years. I also saw simple clamp together design for colt smg magazines. I copied the design and made one for the Madsen m-50. I've included some pictures of the work. If anyone is interested in the mag extension for their own use you can find them on the fosscad git repo. I also have a buffer design that can be printed out of TPU for the Madsen hosted there.