Maverick 25 cal 600mm slugs

Hoping to tap into some forum knowledge here.
I am thinking about getting a Maverick to shoot 25 cal slugs. Most likely 34 or something around 30 grain.
I want to stick with the 600mm STX liner.
Just wanting to see if anyone else is using this set up and what slug weights and velocities are you getting.
No need to tell tunes unless you want. I am just looking for potential performance.

Thank you in advance for the input.
 
I have that set up I'm shooting Nielsen ammo 38.5 gr slugs at 910fps 10 shot group at 40 yards

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Nsa 38.5 out of the 700mm superior liner at 917. Two 5 shot groups 50 yards wind was 8-12 mph left to right.
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I also have some slugs for sale in the classifieds too. Nsa ans hybrids.
 
165/140 on the regs on Maverick Sniper 700mm barrel to be able to shoot 34 grain JSB KO's at 980fps. That's with the standard hammer weight and slug probe. If I were shooting the 600mm barrel, I would put the 30cal hammer weight in. I also have the 500mm 25cal barrel, so I'm guessing on the 600mm. You can always go 170/145 on the regs with the Tungsten hammer weight and that would for sure get you there on the 34 grains. The last time I did that on my 25cal Sniper I got like 82-foot pounds out of 34 grain slugs and pellets. 180/155 is the max according to FX and that would get you with the Tungsten hammer weight to around 80 foot pounds in the 600mm barrel.
Where I live in East TN, the 600mm barrel would be great for squirrel hunting.
 
Mavericks and Wildcats always ship with hammer weights that are optimized to shoot pellets at a relatively low reg pressure at their given caliber. I second Jlowe suggestion - put in the 30cal weight (which is 13gram). That will allow use of 2nd reg pressures up to 155bar. Huma sells a hammer kit with a 14.5 gram variant. I wouldn’t go to Tungsten - that’s massive overkill, very hard on the valve and on the ears!