Recent content by Matt50971

the two outliers on the bottom left and right were shot at around 2100 psi which brings the grouping to around 4 in. the tighter group up top was shot within the 2500-3000psi range. this grouping was also shot during my initial testing without any tuning. I would say its averaging around 3in...

Thanks for the suggestions I'll look into that!!

wouldn't know the answer for the first part of your question, but it is seated on rifling.

Hi all, After years of work my custom marauder is finally finished. the barrel and breech was made over at Jefferson State Air Rifles back in 2019 when they were still doing custom work and they could not have done a better job. Specs: .- 20in .357 threaded Lothar Walther unchoked barrel ...

Thats what I love about the marauder. the possibilities are endless with it. I'm waiting for someone to make a .45 version lol.

So for my setup I have a 28in lothar walther un-choked barrel meant for firing slugs. the WAR valve provides the rifle with more than enough power to push some heavy bullets through. the valve port and the breech are machined for a half inch transfer port. the reservoir is lightweight from...

now that I think about it, it wasn't and I just looked at where the fill nipple meets the air tube and there are some small air marks where the meet. I've changed that o-ring every 6 months and inspect the new rings for any damage before installing them so I wonder if the air tube is the issue.

Hi Airgun Nation, I've had my custom .357 marauder for about a year and a half and it has had leaking problems for about 8 months. I use to hear a little air coming out of the transfer port at a relatively fast rate but I was able to fix that but now I have an extremely slow leak. I'm...

Hi Airgun Nation, I've had my custom .357 marauder for about a year and a half and it has had leaking problems for about 8 months. I use to hear a little air coming out of the transfer port at a relatively fast rate but I was able to fix that but now I have an extremely slow leak. I'm...

My Marauder started out as a .177 doing 30-35 fpe. Now its in .357 doing 220fpe(with a lot of custom work) . So what I'm saying is that the marauder is so flexible, the possibilities are endless.

thats what I'm thinking.

Hi all, I did a post about my marauder with a cothran valve leaking a little while ago. so I changed the o rings to find out the air is coming from the valve. that says to me that the poppet might be stuck and that is causing it to leak air. Should I carefully take the valve apart to examine...

thank you everyone for your responses!

So a few months back I finished my .357 build for my marauder and all of a sudden I started having air leaks everywhere. I got the JSAR aluminum tube for it and I'm getting air leaks out of the fill port and the pressure gauge. I've already replaced the orings except the small one under the...

One thing goof about the marauder is that the after market possibilities are endless. If you do your research it can be very rewarding.