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3 posters

    Range Master Brass Breech Guide Writeup Thingo

    mutzy
    mutzy


    Posts : 18
    Join date : 2012-03-15
    Age : 34
    Location : Brisbane, Queensland.

    Range Master Brass Breech Guide Writeup Thingo Empty Range Master Brass Breech Guide Writeup Thingo

    Post  mutzy Fri Sep 07, 2012 4:03 pm

    Hey all, I haven't contributed anything here yet, so here's a writeup for you! The guys on the Bris Nerf Group FB page have seen these pictures, but here's the full details. Unfortunately, I wasn't taking pictures throughout the entire process, so where I don't have any pictures, I'll try to explain it as best as I can. I wanted the design to allow it to be easily disassembled for storage and transportation. The only brass breech mod I found was this one on NH by The Manta , which is pretty good, and shows a nice overview of the mechanism, but the barrel isn't removable, and I like the idea of a kickass blaster that looks stock. (mods/admins; if linking to other sites is against forum rules, I apologise. Let me know and I'll remove it.)

    Mutzy's Brassed Range Master (aka "Thanh Targeter" LOL)

    Materials:
    1/2 Brass
    17/32 Brass
    9/16 Brass
    Nerf dart foam (15mm-ish long)
    Etape
    2 part epoxy
    Hot glue
    20mm Conduit
    Coupler

    Tools:
    Trusty ol' nerf screwdriver
    Pipe cutter
    Pliers
    Hacksaw
    File
    Reaming tool (I used a multi-tool blade)
    Rotary tool (optional)

    First we have a picture of a Range Master.
    Looks stock? Yup.
    Is stock? Nope.
    Is it OP? Yes. Glooooriously OP!
    Range Master Brass Breech Guide Writeup Thingo 564212_4106391216019_1083046818_n

    So start off with removing the scope, bipod and barrel. The orange ring that the barrel screws into is an absolute pain to get off, so I got my hacksaw and cut along the top and bottom to keep with the shell line. You may want to use rotary tool if you don't want to cut through the thread. I personally haven't noticed any issues with mine, and as you can see from the pic, I cut almost through the entire thread.

    Range Master Brass Breech Guide Writeup Thingo 549630_4106392696056_450760339_n

    Then you need to remove the screws. Before pulling the shell apart, flip the blaster over, because the internals are fitted on the 'top' shell piece as opposed to how nerf blasters are generally designed. Open the blaster up and have a quick look at how the design works. Unscrew and remove the dart stop mechanism, as it sucks and won't work with the brass breech anyway.

    Remove the entire pump and tank assembly. To plug the pump, I just filled the opv hole with hot glue. You may want to use epoxy, but I haven't had any issues with the hot glue at all. I didn't plug the hole on the side as it wasn't necessary. Lube the o-ring a bit as well. The pump works well and holds up nicely against the high pressures.

    Next, I turned my attention to the tank and the stock dart barrel. I used a set of pipe cutters to cut the barrel apart and removed the AR with a pair of pliers. You can see in this picture the mark where I cut the barrel apart. File the cuts smooth enough that the barrel will fit up together without any gaps. (pic taken after it was reassembled and glued)
    Range Master Brass Breech Guide Writeup Thingo 578378_4106392216044_1898899256_n

    The tank, stock barrel and brass barrel parts.
    Range Master Brass Breech Guide Writeup Thingo 206064_4070152830082_1468674546_n
    Next up you get your 1/2 brass and cut an 80mm length. Wrap etape around the other end of the brass until it fits in the gap around the tank's outlet. I jammed a 15mm length of nerf dart in the end to kill the deadspace a little as well as provide a bit more stability around the outlet. I also fitted and glued a length of pink foam in the other end to further reduce deadspace.
    Range Master Brass Breech Guide Writeup Thingo 375934_4070175430647_993467918_n
    Range Master Brass Breech Guide Writeup Thingo 405927_4070160790281_462835722_n

    With the other piece of the dart barrel, you're gonna have to ream the ID out a bit to allow the 17/32 to pass through. Once you've got it reamed out, cut the brass to the same length as the 1/2 brass minus the electrical tape wrapped around the end.
    Mocked up pic of the 1/2 and 17/32 dart pusher assembled:
    Range Master Brass Breech Guide Writeup Thingo 557403_4070167390446_755298711_n
    I used 2 part epoxy to fit it all together, starting with the electrical tape 1/2 brass and the stock foam, then glued on the stock dart barrel and gluing in the 17/32 piece. Once everything has set, pump it up and test that the pressure isn't gonna send the anti-deadspace foam flying out. It did for me, which is why I glued in the pink foam. Reassemble the blaster and then it's on to the barrel.

    Removable barrel in hand, we get the 9/16 brass. I only had a toyworld/hobbyrama 1 foot length to use, and while I have no idea whether or not I should use a smaller or longer length, I have found it works very well.

    Since I had the 9/16 brass and needed it to fit snugly in the 30mm ID of the removable barrel, I used 20mm conduit, a coupler and mass amounts of etape (wonderful stuff) to locate the brass in the barrel. The only measurements I can give you is that I used 150mm of conduit and cut the coupler in half and stuck the ends on the conduit. You will need to measure the 9/16 a few times with the blaster assembled so you can get it fitting over the 17/32 of the dart pusher properly. With my RM, the pusher sits about 15-20mm in the 9/16.

    In the end, it was a nice snug barrel consisting of 9/16 > etape > 20mm conduit > coupler > etape.
    Sadly, the only pics I can give you are these but hey, it's better than nothing!
    Range Master Brass Breech Guide Writeup Thingo 418746_4106240732257_490107631_n
    Range Master Brass Breech Guide Writeup Thingo 387013_4090125129377_955113834_n

    I should also mention that I put a few tightening rings in the 9/16 so the slightly thinner diameter darts don't fall out the end when the blaster is pointing the ground.

    Ranges: Parallel to ground averaged at 32m / 104ft, angled was over 35m / 114ft. 8 or 9 pumps. I can do 10-11 but any more than that and the trigger fails and it pre-fires. So I just normally pump to 8 or 9. Since the packaging says 'blasts up to 12m', I think a 290% performance increase is not bad for a few nights of lazily modding.

    To give you an idea of accuracy; I was able to hit a 300mm wide target at a little over 100ft using the stock scope.

    Overall a very nice and simple blaster to mod. I have ideas for a v2, but not quite sure how to implement them, so I think I'll just stick with this for now. Hope you guys could understand what's going on, but once you've got the blaster in front of you in bits, you should be able to decipher what I've said, haha. If you stumble across a different or better way of brassing a RM, let me know!

    Range Master Brass Breech Guide Writeup Thingo 564212_4106391216019_1083046818_n
    inb4 'That's OP'
    littlebro05
    littlebro05
    War Organiser
    War Organiser


    Posts : 2533
    Join date : 2009-07-07
    Age : 29
    Location : Brisbane Boi!

    Range Master Brass Breech Guide Writeup Thingo Empty Re: Range Master Brass Breech Guide Writeup Thingo

    Post  littlebro05 Sat Sep 08, 2012 12:51 am

    clem0x and myself quickly threw one together and it shoots very, very accurately. Almost bullseye on every shot with the scope shooting from 15metres. So, I think that's pretty impressive.
    pleagh
    pleagh


    Posts : 33
    Join date : 2011-05-01
    Age : 35
    Location : East Doncaster, VIC

    Range Master Brass Breech Guide Writeup Thingo Empty Re: Range Master Brass Breech Guide Writeup Thingo

    Post  pleagh Sat Sep 08, 2012 1:14 pm

    Good work. Looks very clean.
    Where did you get the range master? I've been looking everywhere down here for one and the new panther.
    mutzy
    mutzy


    Posts : 18
    Join date : 2012-03-15
    Age : 34
    Location : Brisbane, Queensland.

    Range Master Brass Breech Guide Writeup Thingo Empty Re: Range Master Brass Breech Guide Writeup Thingo

    Post  mutzy Sat Sep 08, 2012 3:15 pm

    Thanks guys. I got my RM from Toyworld for $30. Unfortunately, the Panther isn't available here yet. Not sure if it will be, the only ones I know of are possibly being sent over from MiG.

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    Range Master Brass Breech Guide Writeup Thingo Empty Re: Range Master Brass Breech Guide Writeup Thingo

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