Life of a rimfire can without cleaning?

RockRiver

Happy to be here
Joined
Dec 19, 2016
Messages
326
Location
Thomasville, NC
Rating - 0%
0   0   0
The HPA thread got me thinking.... If this passes, I'm figuring after the initial rush, you will see rimfire suppressors in the $50-100 range. Would there even be a need for a serviceable rimfire can? How many rounds realistically before the suppressor becomes heavy and loses suppression due to fouling? 50,000? 100,000? more? Even if it were $100 and only lasted 10,000 rounds, that is only $.01 added per round.
 
My Thompson machine 22lr can (monocore) specs a cleaning every 150rds. Less than that if you are shooting HV ammo and you don't want to beat the can up getting it apart.

Because of the above schedule, I bought a Sparrow. Who wants to stop shooting at 150rds? That's Only 5 thirty round mags!
 
I've taken my checkmate to 500 rounds or so. After that many it is definitely difficult to get it apart, but not impossible. It doesn't take many rounds to seize one up, but how many I wonder until it is useless as a suppressor?
 
I've taken my checkmate to 500 rounds or so. After that many it is definitely difficult to get it apart, but not impossible. It doesn't take many rounds to seize one up, but how many I wonder until it is useless as a suppressor?
Same here for my Sparrow. After 500rds it's quite tough to take apart. I use frog lube on the half tubes and it's much easier now.
 
Same here for my Sparrow. After 500rds it's quite tough to take apart. I use frog lube on the half tubes and it's much easier now.

I used dialectric grease last time I serviced mine. Haven't cleaned it yet, so I don't know how well it worked. The biggest issue is the buildup on the outer tube that blocks the baffles from coming out. I followed another member's advice (memory fails me at the moment) of using a cylinder hone to clean it up. I did that and it worked perfectly. I guess this probably isn't a problem with the sparrow though.

EDIT: It was @Unknownpro who mentioned it. Thanks again for the tip.
 
Last edited:
The vaporized lead deposits in a sealed rimfire can would be an interesting study. Most rimfire baffle orifices are approximately 25-26/100" and the leading rate to actually close down the openings about 3/100" to start baffle strikes might be quicker than the weight or loss of suppression. I've knocked some nice chunks of lead out of my rimfire with maybe 300 or so rounds of standard velocity LRN target rounds. Rimfire is inherently dirty be it the powder or lead deping and I'd love to see a true scientific experiment type thing run with weighing, measure of sound reduction and measure of baffle openings every "X" number of rounds ...


ETA: to help lessen buildup and adhesion of leading I soak my baffle stacks in Dot 5 brake fluid overnight after cleaning before reassembling the stack. The silicone based fluid helps with cleanup from carbon and leading.
 
Last edited:
Check the clezoil test I did on the other site. After 740 round in one day through a checkmate QD the baffle came right out and the lead wiped right off. Not saying clezoil is the only thing that works but it works for me.
 
Back
Top Bottom