I am looking into regulating a non regulated Marauder.I want 900 fps with 19gr pellet from a 3000 psi fill with hammer and spring in middle adjustments.What regulator fits the bill at what pre-adjusted setting. Moochess grabass amigos!
If the issue is that it is "air hog" then you would do better tuning for efficiency and maybe adding an SSG rather than a regulator. Truth be told, I often found that absolute efficiency is actually higher in guns when well tuned without a regulator vs, with a regulator at the same power level (noting that other changes are often applied to make both work well). Of course the regulated gun can run at lower pressures, which can be nice if handpumping is involved, but the absolute efficiency might not be any better (and is often worse). Higher air pressure helps efficiency.OK Now the truth.This m-rod is an air hog.I would be happy with a increased shot string of 14.3 at 880 to 900 fps.Now about that regulator?
I am struggling to adjust my 25 Armada with the same setup. What did you end up with for regulator pressure?To get the most out of it you can go with the Hill Valve assembly kit. I've been very happy with the setup so far. My Marauder came regulated, so I swapped the factory one for a HUMA. Total cost for both upgrades was just under $400. Then for a regulator tester, add another $80. For me it was worth the cost.
I have a .22 so my reg is set @ 135bar. Hopefully someone with a .25 will speak up. You can also email Tim Hill.I am struggling to adjust my 25 Armada with the same setup. What did you end up with for regulator pressure?
If he bought the full kit, everything he needed would be there, minus the HUMA reg. My gun was regulated from the factory, so I already had the larger air tube and didn't lose any volume.
The .25 is not available regulated from Crosman. The install of a Huma regulator with standard or XXL plenum will reduce the HP air reserve to about 190cc +/- down from 215cc.
An unregulated rifle, carefully tuned, can produce more shots at similar average power than a regulated rifle because it has more HP volume and unlimited plenum. Or produce more power than regulated for fewer shots. Regulated it is a struggle to get the power back up and when accomplished the shot string is nice and flat but possibly fewer total shots than unregulated.
The M-Rod .25 uses a lot more air than the .22, regulated or unregulated, once the power (fpe) gets up into the 50s or low 60s there will be 16 shots or fewer. Or tune down into the low to mid 40s and get a lot more shots, again, with or without a regulator. The stock hammer system bounces on the valve poppet and wastes air, the most useful modification to increase shot count or more power for more shots is a SSG hammer and spring system of several variations.
Mostly true except I get 24 shots @ 60 fpe with 190cc regged.
Port diameter has a HUGE impact on efficiency....mine is .225"
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If he chose correctly, he would had got the HFTP .194 ID.