My condr is .25cal,I've used Talon tunes 14", Niel clage custom shroud and Donnyfl Shogun,Ronin.they are so similar to my ear.You really can't hear a difference, now use a ronin with his extension things get a little bit quieter.
Sorry guys,it's called Uni Filter for diesel pre foam filter.it's green but it doesn't really help much.Ive enough used Kevlar wrap and plumber felt, which is very thick.You just need your ear.
I got another reciever bolt and filed thread side down to relieve some pressure,it helped.If you shine a light down the reciever hole you will see the end of the valve stem and the end of the hammer.When I have the time I will see if I can get a spare hammer and vent it.
I'm running about 890fps with jsb kings and put on my Sumo,of course the Ronin is quieter.I do use foam instead of the felt.To me if gives me a duller sound.