Hi Grant, I've been mulling this idea over for a week and need help to put finishing touches on this idea before attempting it. I purchased three marauders, Two in .22 and one in.177, One of the .22's I want to try converting to .25 cal. I have the barrel, An LW and have dimensioned the breech for machining, I have a machine shop but very seldom spend a lot of time making parts, I prefer to shoot them not make them. Question: Since you have a marauder in .22 could the clip be modified by enlarging the slots on the rotary pellet indexer and face plate slot to accept the .25's? I'm waiting on additional clips to arrive before disassembling one. I think this would be a great conversion on an already great gun. Your input would be appreciated!! Regards,

Greg

First, thanks for the Bolt dimensions. Regards the Mag Conversion to 25 cal? not positive but just looking at mine, I think its possible. Im like you at present, im after a few spare mags in both cals but they are in Limbo at present. Cant say im keen to start mucking around with the Only Mag I have, but once I have a few spares I will do an open Heart on one.

Grant.

Greg and Grant, I took one of mine apart (.22cal) to be able to check if something hidden would stop you from being able to get to .25; it looks do-able but it will take some fine work removing just enough material from the ring (10 times) that actually holds the pellets, open up the slot in the clear cover to a little more than the current 16/64 inch width, and perhaps you will need to thin the outside wall inner face also? I can see how the .177 and the .22 can remain "centered" for the bolt to push into the barrel but removal of material from the mag for .25 will need to consider that alignment requirement in addition to just simply fitting in the magazine. HTH and also another problem disscussed below if you aren't already disgusted enough

Have you thought about the fact that the .25 cal pellets are proportionally longer and it may be that .22cal may give much the same energy as the .25cal that will fit lengthwise? Some of the better .25 cal will just not fit and allow the mag to operate even if you open up to .25 because of length. The reason I discussed a custom mag .25cal made by Grant some time back for a Marauder. It might work for making every part of the thing thinner and also pehaps allow for slightly longer pellets. That said it would be a costly endevour no doubt.

shootski

I cant really comment much about it all till I can get a few spare mags here to look at one apart, with regard to holding the Web to open out the Slots and the other required Mods but it would have All been So much Easier if Crosman had just made the Slot in the Breech 1/8" Wider and Built the Mags the same?? Lol. I doubt that I will bother making Mags unless I go for Metal ones specially for 25 cal, and even then I think it would just be another waste of My time for No wages.

Grant.

A STACE Repeater Breech using a 25 cal Self Feeding Mag from another Make of Air Rifle, may be a Viable Idea ??

Grant

Please explain your idea I'm extremely interested if this is doable, As a twenty-five cal. marauder based rifle would be a real winner IMO. Regards,

Greg

Pellets lying around, I'm out till thursday and need some measurements as I got brave and took my clip apart also for a look see and to study possibility of enlargement, And yes I think a new face plate back cut for longer pellets is also doable, Even if a cut to the breech as grant suggested is needed for more width I don't see a problem as the whole issue is to do a nice neat conversion with the ability to use some a%& whoop'in 25's for coyote hunting. As Grant states above though may be easier to just use his proven parts making ability to get up and running with some kiwi bling!!!!Regards,

Greg

For my eight shot revolver action 100+Lb/ft #300 of 300...the last one that will be made ever. So a Marauder in .25cal is a low priority for me, just trying to help others.

shootski

a couple of the Guys have arranged some mags for Me, so when they get here I will take a look at converting one to 25 cal. Dont worry about 25 cal pellets cause I have about 5-6 different makes of 25 cal pellets here in my Pellet Tin Collection.

http://www.network54.com/Forum/576297/message/1185190676/Various+Pellet+Containers.



My Taiyo Juki Bobcat has just arrived . Its got its Original Box for it, so im dying to go open it and take some pictures for the Collectors section, Lol.

Back later

Grant.

I would rather take the easiest route if I can and just mod a Marauder Mag. The trouble is, that till I get a few here, my hands are tied cause I dont want to risk ruining my only Mag. I have made 2 25 cal Trays in the batch, in case you want them in the meantime. I dont want to get embroiled in a Completely differnt Repeater Breech than I have planned on a one off Basis at present. It was just a thought for the Future if its going to be a Pain as it has been so far to get some spare Mags. The longer Im held up, the more time Others Get to Program the CNC's

Regards Grant.

Check ur e-mail!

Brian.

Regards Grant.

Come together, Yes of course I would like a tray in 25.Saves me from foolin around, Otherwise I'll have to hack it out on my own, And I'm a pretty rusty old machinist. But if you are considering a breech and mag converted for 25 cal. I would like to be counted in, I've never thought the prices you charge for the parts and pieces was to much, On the contrary airgunning is an expensive hobby why would I or any one else think that custom or one off parts be cheaper than the factory crap that's mass produced, Nor am I nieve enough to think anyone could compete with the cnc crowd ( I happen to own two of them)But then see if those guys are willing to do a ten to one hundred part run,Most won't even consider it, I know I wouldn't, In my bus. five hundred is the min.for the tool blanks we run for diamond coating and use by the granite trades. In my opinion, And thats just what it is, One off manual made parts are a work of art and worth what the crafter considers fair price for his efforts. As I said at the start this is just my opinion. Regards,

Greg

I just wanted to point out that its easier to start by trying to Alter a 22 cal Mag first. At the price they are $US12-14, I would have to build a complete one in about 30 minutes to even come near a plastic Crosman Mag, and thats with NO Profit to Me. Its just not worth the Effort, especially for a One Off. Its nice to get the Compliments for the Handmade Part, but Its money I need to pay the Bills, Lol. When im competing with a Mindless CNC its bad enough trying to make anything out of a Custom job even with a few Jigs and Fixtures to Help.I appreciate that people would pay a bit more for a One off part, but how much before it becomes rediculous? I see people complain about a $80 Metal Rapid Mag, so why would they be happy with one I made by Hand at even $80? if you see my point. Modding a Plastic Marauder Mag is my 1st Option in the meantime and if that cant be done, then I can then look at alternative ways.

Cheers Grant.

With what you are saying,How ever I think it is worth pursuing.25 cal is an easy upgrade for this class of rifle. Do I think you will be the only one to venture into this area? NO!! But I do think that proven performance from an experienced maker carries a lot of weight in the airgunning community.Yes, The fact of this conversation will be proven when you sell out of the single shot trays, Don't think so? post that you have them to the marauder forum. They would welcome the fact that your willing to venture out into an area thats already looking for improvements (bling!!)I'm a staunch supporter of a guy thats willing to take a leap to strut his stuff! Would I buy just one? NO!! I want six for my self (Got a lot of family that wants one too)So I'm saying it public.I'll help any way I can, I'll tear down one of mine for any measurements needed. Enough said, Regards,

P.S. would be the S&^TS to have a five hundred dollar gun with a two hundred dollar upgrade out shoot a rapid!!!at twice the price!!

Greg

I cant do much till the Mags arrive, so im just getting on with other things in the meantime. As for Bling, the Prototype Repeater Breech is not Totally Finished yet, ie Engraving etc, but once thats done I may leave My One Raw Finish, but others would be offered in a Flat Black Anodised finish as well.

edit ; spelling.

Grant.

The punch ha ha if anybody can do you guys can.

Ssssshhhhh!! If they hear that, they probably wont sell Me any parts

Regards Grant.

Just layin about, Begging to be Used A Nice Bit of TOW 25 cal Liner. I can see Breech Seal Issues though with this thin wall tube, regards the placement of the O -Ring in such a thin Wall. There will probably have to be a different approach Required.

[IMG][/IMG]

Not sure if I want to use it for the Marauder or for a couple of 25 cal Repeater Pistols??

Grant.

Sounds to me like it (the TOW .25cal) works with no issues for the STACE repeater breech/receiver so...DUH! PISTOLES it is right?


shootski

The twist rate would be more suitable for a Pistol. Its pretty hard to find anything suitable here in NZ, thats my Problem.

Grant.

LOL!

http://www.lothar-walther.com/458.php

Now theres a thought? I didnt think of that. Certainly would be the Best bit of Barrel to have for sure. I will take a look at the options.

Grant.

http://www.lothar-walther.de/428.php
it has a link to the non-US customer pages; those take you to the German page:
http://www.lothar-walther.de/3.php
but they have a "broken English" version
Note also the dealer-gunsmith pricing discount section:
http://www.lothar-walther.de/320.php for purchases in quantity.
I have no idea if that was helpful? Lol, Sounds like a number of people want a .25cal Marauder? Or STACE PISTOLE; I can't tell anymore.

What I do know is that you need to do what will keep bread on your family's table and a little beer and wine on occasion Along with money in the "cookie (or is that biscuit in NZ too?) jar" for your airgun purchases!

shootski

Im sure that people will want 25 cal Marauders especially for the bigger Critters you Guys have over there. I reckon there isnt much better than a Big Heavy Lump of Lead travelling at a fair rate of Knots to drop something in its Tracks, Lol. The Marauder has the Ability to Handle a few Power and Cal Increases, IMO. Let the Games Begin . If a 10 shot 22 cal Mag cant be modified to 25 cal, theres always the chance of making a 8 shot 25 cal or a 6 shot 30 cal, who knows yet ?? the only thing needed would be a supply of Feed Springs for the Mags, and Im sure I could get those made locally. Ive just had a stack of Spare Coil Springs made for projects and to save Importing them. No Nickel Plating, but exactly the same size and specs as the Originals.

[IMG][/IMG]

Grant.