I'm contemplating selling my slayer 308. but in the mean time I would like to upgrade my . 22 marauder to a .30 caliber, does anyone here know of any conversion kits out there?
30 conversion for marauder
- Thread starter rctk1
- Start date
Roy at Mountain Air makes the only .30 conversion I am aware of. However, it is made for a .25 marauder not .22 or .177 as the breech and bolt are different than a .25.
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You could maybe buy a replacement breach and bolt from Crossman to allow the 30 cal conversion to work with a 22?
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Good catch Bill!! Actually the valve spring is the only listed part that is different from a .177/.22 to a .25. Everything else is the same.
In my opinion, I would not run stock internals for a .30 conversion. Just way to slow stock with a 44gr pellet. With one of my modded stock valves or a Hill valve, you can easily hit 80+fpe. I currently have mine tuned at 830fps for 67fpe. I think the .30 is best suited at 800fps or faster because of the trajectory. About 80fpe seemed perfect for long range. I shoot my best 100 yard groups right around 80fpe.
I only detuned mine because I wanted a high shot count for hunting season and I will regularly only shoot 30-50 yards.
Roy at Mountain Air has sold alot of his kits to guys that just leave the guns stock internally. Too each his own, but the .30 really needs more than stock can give.
In my opinion, I would not run stock internals for a .30 conversion. Just way to slow stock with a 44gr pellet. With one of my modded stock valves or a Hill valve, you can easily hit 80+fpe. I currently have mine tuned at 830fps for 67fpe. I think the .30 is best suited at 800fps or faster because of the trajectory. About 80fpe seemed perfect for long range. I shoot my best 100 yard groups right around 80fpe.
I only detuned mine because I wanted a high shot count for hunting season and I will regularly only shoot 30-50 yards.
Roy at Mountain Air has sold alot of his kits to guys that just leave the guns stock internally. Too each his own, but the .30 really needs more than stock can give.
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I'm going to contact Roy tommorrow and see if he has any customs that he might be selling. thanks
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Hillairgun.com has these I believe
http://hillairgun.com/products/valve-assembly-for-30-cal-marauder-rifles/
Product Categories:
Valve assembly for .30 cal. Marauder rifles Valve assembly, for when converting your Marauder rifle to .30 caliber – gen 1 or gen 2 + The valve body is CNC machined, from a solid piece of hard and durable 7075 aluminum.+ The larger passageways allow for more flow.+ Anodized blue.+ This is not a bored out factory valve body, so no worries about the valve seat warping/bending under the constant high pressure. *NOTE concerning .30 cal. conversions- Some aftermarket barrels may not be machined to allow for the use of factory ( size ) transfer ports. In order to guarantee proper fitment, you may need to supply your own transfer port. The recommended transfer port I.D. for the most power and efficiency from your .30 cal. Marauder rifle with the hillairgun.com valve assembly installed is .210 I.D.max ( best ) and a minimum of no less than .187 I.D..*This valve assembly can also be used with high fpe .25 cal. applications. Package includes: 1- hillairgun.com .30 cal. valve assembly, and shipping within the USAPrice: $120.00Upvote 0