Benjamin Maximus Tinkering

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    addertooth
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    I did a bit of math, to space the bands so that the lengths of the span between the bands were odd order harmonics to each other (section from the breech to the first band, section from the first band to the second band, section from the last band to end of barrel).  This discourages standing wave vibrations travelling down the barrel and disturbing the position of the end of the barrel when it is fired. I would love to place a force balance accelerometer on the middle of each span to confirm my calculations, it would be interesting to know if the assumptions in the math are true. 

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    Goodtogo
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    I’ll share this just in case anyone would like to use this on a Maximus. My Maximus is one of the first in .22. And I had Neil make me a LDC for it. I also have a 2300kt with a LW .177 barrel. The 2300 comes with a muzzle break on it. In the picture you can see that I have traded the muzzle break to the rifle and the LDC to the pistol. So the .177 LW barrel and the Maxi .22 barrel have the same OD. Funny thing is the break on the Maxi takes some of the crack out of the shot, but its still loud.

     

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    shooter1966
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    I’ve done adout every modification known to man to my maximus 22 cal. The only thing i didn’t touch was the barrel because it was so accurate to begin with. I can tell you this i went to three barrel bands witch made no affect on accuracy it will drive nails. I’ve yet to crono the gun but i can tell it is shooting faster. Now it’s not going to shoot 50 fpnds stock is 23 i hope to be getting around 27 hopefully! The tko moderator changes the sound from stock you don’t think it’s shooting very hard when it is. It’s cold out and i can’t wait until spring gets here so i can finish the gun. I think my next one will be a 25 cal mrod like some of ya’s I’m kinda tired of building. I’ve got several airrifles and none of them can compare to the maximus in accuracy. I would sure like to know what they have done to this barrel but it Sure is working

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    Bob_O
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    My Maximus 22 has been doing great since I got it.  All I “had” to do was fix an air leak at the fill port.   I added a custom trigger from Magnum Air Power, which got rid of the creep and mushyness of the factory trigger.  And I added a TKO muzzle brake, the 6.5″ one.

    Here’s a video of some action.  I went out last Sunday and got over 40 starlings from 15 to 25 yards…..I double kill even.  I hope to have that video up in a few days.

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    spysir
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    Just saw this thread.  Have a maximus “hunter” package .22 in the House. THE most accurate Crosman barrel I have seen except one off a CR101. Haven’t done a thing to it  not even the trigger which is a bit heavy but no creap/screak/… .
     Had planed on putting that barrel on a Discovery as the Disco can be pushed to higher power levels but it just sit’s around waiting for a neighbor or such to need a loaner.

    Crosman needs to put these barrels on all model they fit!

    John

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    Bob_O
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    Here’s a vid (short clip) of just the double kill.  Watch in slow mo if you can!

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    Saltlake58
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    I believe Crosman figured out the new barrel process before the Gen 2 Marauder came out.  Since the Gen 2 came out, I haven’t heard many complaints and have heard lots of compliments.  I have a .22 Gen 2 Marauder and have been extremely happy with the barrel.  At 75 yards, getting excellent groups.

     

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    spysir
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    Bob, nice video, I watched a couple of you other vids.  STOP hand pumping that way!  Your making my back hurt watching.  Pull handle up, with your back straight push down only far enough to lock your elbows then DROP all your weight on it.  You will find it much less work that way, honest.

    Not sure what crosman does on their barrels, they certainly do like all the interchange they can get in parts, could be they are all the same run then cut to size & machined and maybe I just one the lottery but this .22 maximus does group better than any marauder or discovery “I” have seen and that is with the darn awful trigger.  Doesnt seem like anyone wants to buy a used maximus so I may just give fitting it to the Gauntlet – now a .177- a try?

     Other than the groups the thing I like about it is the weight, excellent all day carry rifle out in the woods.

    John

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    Bob_O
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    For sure John.  That was my second time using a pump.  Believe me, Ive learned to lock out and let my legs bend so that body weight does the compressing.
     

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    spysir
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    Just trying to help, I pumped like that video the first time also , on a 500cc tank. Takes a minute to realize technique matters in pumping as well as shooting, youve got some fun vidoes.

    John

     

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    Bob_O
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    The Maximus is a cinch to pump compared to my new Streamline.  Holy cripe.  I did manage to get it to 230 bar last night though.

    No offense taken at all John…..I knew where you were coming from.  Thank you.

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    MJS
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    All I did to my .22 Maximus was clean the barrel, install a Baker trigger/spring and TKO.  It is a no fuss rifle and very accurate: dime size groups at 25 yds with JSB 15.89 or Crosman Prem HP and a cheap 4×32 scope.  Since getting the Max I’ve sold my German springers and this is now my sole pester.  Drops game on the spot.  It is loud w/o the TKO!

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    Tinbuster
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    Awesome video thanks for sharing.  My Disco  has been my favorite and I always seem to pick it up.  Hopefully the New Fortitude is as accurate as the disco and Maximus.  I can’t wait to get my hands on one.  Anyways thanks again the scope cam is always entertaining!!!

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    Bob_O
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    I just put a Discovery barrel adapter from DonnyFL on my Maximus so I could fit his suppressor on it.  Unbelievable sound reduction.  Went from loud to nearly silent!!
     
    I used the Sumo suppressor, but have the new Tatsu as well.   Here’s a pic of the adapter.

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    buckyusn
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    I put a Wolf moderator on my Maximus Euro (.177) , and it went from quiet to silent. All you can hear is the “tink” of the hammer and the”slap” of the pellet as it hits the rats between their eyes and ears! Just awesome for pesting! Great investment for keeping the rodent population down.

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