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Post by Gordak on Sept 1, 2005 17:19:34 GMT -5
Here is something strang i noticed
Consistant inconsistancy in shots the velocity is always right around these numbers.
1st shot 250 fps
2nd shot 180 fps
3, 4, 5, 6, 7 200fps
anyone else try a chorno with their garand?
I also noticed, that the first shot is the most accurate, then the rest kinda go all over the place. -Gordak
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Post by phantom12321 on Sept 3, 2005 22:44:13 GMT -5
I thought a garand fired 8 shots. :s
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Post by walker on Sept 4, 2005 1:08:11 GMT -5
lol
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Post by Gordak on Sept 5, 2005 1:13:32 GMT -5
u can put 8 in, but youll wear the spring out.
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Post by CPL. Mills 2nd Rangers on Sept 5, 2005 16:36:44 GMT -5
yea, I was able to partialy restore 1 of the springs in my clips.
Sam, did you buy replacement springs for your clips yet? Cause I have yet to go out to Menards.
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Post by safemilk on Sept 5, 2005 18:41:52 GMT -5
Hi Daniel here, I'm new! My Garand should come tomorrow, but I'll be at Art Institute... oh well. How easily do the springs wear out?
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Post by safemilk on Sept 23, 2005 17:00:23 GMT -5
Which allen screw is the hop up? I can't find it! blargh! I love the garand though!
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Post by safemilk on Sept 30, 2005 0:40:03 GMT -5
Hi me again. I really need help. After firing a few clips of for my garand it has become ridiculously loose, the barrel moves as well as the top wood section on the gun. I can't imagine how to get this apart to tighten it. But if I ever want to use it in combat then I'll need to fix this. Please help!
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Post by CPL. Mills 2nd Rangers on Sept 30, 2005 14:46:56 GMT -5
if you look at the manual it shows how to break the gun down completely, use that as a guide to find out what you need to tighten for the front of the gun.
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Post by 2nd bat on Oct 11, 2005 16:46:09 GMT -5
Like the real M1 the dissambly starst with pulling up the trigger guard from the rear and lifting out the trigger assembly. Unlike the real steel you next un screw the flathead screw in the stock and lift upward from the rear. You will now have full access to the parts that tend to come lose. See the thread on Arnies for pictures and references. Use the hex wrenches included to tighten all the screws. The hop up is directly behind the breech and can be accessed with the gun intact. You use the very very tiny hex wrench and turn clockwise to add hop up. They ship at zero so you need quite a few turns. The .45 gram Bbs produce quite abit higher FPS then the .34 that come with the gun. It also for some reason shoots alot harder and more accurate after a couple hundred rounds go through it. Mine did anyway. My Garand shoots quite consistently at 260 to 265 FPS. I pause between shots however. (2 seconds or so) If I rapid fire my consistency is all over the place.
Use blue loctite on all the screws that come loose. In the case of your wobbly barrel and stock. The screw is an amzingly small one up on the gun portion of the weapon where the front of the stock would normally attach. (Brass section)
The most challenging screw is straight down from the hop up screw directly below the breech. Access with the bolt locked open and use the small hex wrench. I haven't loctited that one yet as I'm trying to figure out the best way to do it without pulling it all the way out. It's tiny and very hard to get to. It's critical as it holds your gas reservoir intact!
I should create a care manual in English with pictures and tips. Actually we should send every garand owner to 6 weeks of boot camp!
2nd Bat
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Post by gunfreak on Oct 12, 2005 4:00:59 GMT -5
yes make a step by step manual,
i get the part were the gun is in pieces, but i don't have the tec on the tecnical and don't want to start tanking it apart to get to all the smal pieces, as I would never manige to get it togehter agein
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2nd Bat
Master sergeant
Posts: 11,813
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Post by 2nd Bat on Oct 12, 2005 17:26:30 GMT -5
Unlike an AEG you don't have to be scared taking the gun down as it stays intact and doesn't have intricate gears and springs that fly all over when you take it apart. Essentially there are just a few large sections and within those sections you can for the most part easily see the screws that periodically might need tightening or loctite (highly recommended)
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Post by jonathonbarton on Nov 9, 2005 14:09:47 GMT -5
...anyone else try a chrono with their garand? Heh. Don't try this at home, kids. I don't have any R134a, and don't plan on buying any. I bought an Airsoft Innovations Propane Adaptor for my gas pistols, so I tried using it with the Garand. It just vents right back out the overpressure relief valve...at first. * Remove the trigger unit. * Unscrew the Stock Screw and remove the stock. Set aside. * Unscrew the relief valve from the brass fitting in the front of the gas reservoir. Set aside. * Unscrew the brass fitting that the relief valve was in. * Put one turn of teflon tape on the relief valve and thread in the BACK side of the brass fitting you just removed. * Put two turns of teflon tape on the brass fitting, then replace in the front of the gas reservoir. * Replace the stock and stock screw. * Lock the bolt back. * Have a change of underwear handy. * Fill Garand with Green Gas / Propane. * Take Garand into the back yard. * Chrono Garand at 480-510 FPS with .34g BBs. * Change underwear.
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Post by Guinness on Nov 9, 2005 19:12:41 GMT -5
Ok well Good work JB, because you just earned yourself the 'Gunsmith of the Year' award when I get my Garand and you do that same trick for me!!! hmmm but wait .......let's see, I already have a M1 'para' Carbine that is a 'Red Gun' with a MED of 75 feet, and now it sounds like I'm looking at perhaps a mythical 'Double Black Diamond' gun with a MED of what, 100+ feet? yikes! who needs 'support' weapons? you get a firing line of 4 Green Gas equipped Garands and hold off an entire team! w00t! ;D -G
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Post by CPL. Mills 2nd Rangers on Nov 9, 2005 20:09:21 GMT -5
...anyone else try a chrono with their garand? Heh. Don't try this at home, kids. I don't have any R134a, and don't plan on buying any. I bought an Airsoft Innovations Propane Adaptor for my gas pistols, so I tried using it with the Garand. It just vents right back out the overpressure relief valve...at first. * Remove the trigger unit. * Unscrew the Stock Screw and remove the stock. Set aside. * Unscrew the relief valve from the brass fitting in the front of the gas reservoir. Set aside. * Unscrew the brass fitting that the relief valve was in. * Put one turn of teflon tape on the relief valve and thread in the BACK side of the brass fitting you just removed. * Put two turns of teflon tape on the brass fitting, then replace in the front of the gas reservoir. * Replace the stock and stock screw. * Lock the bolt back. * Have a change of underwear handy. * Fill Garand with Green Gas / Propane. * Take Garand into the back yard. * Chrono Garand at 480-510 FPS with .34g BBs. * Change underwear. have you tried using 134a gas since you've modded your gun?
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Post by jonathonbarton on Nov 15, 2005 18:29:50 GMT -5
No, but I did get it working on external CO2 last night - briefly. The hose I'm using binds the GBB mechanism slightly... I'm trying to source an M5x0.5 (Fine Thread Pitch) threaded piece that will be a drop-in replacement for the existing stock fill valve, instead of using a 1/8" NPT fitting to the front of the gas reservoir and drilling the stock for "hose-exit" like Gordak did. Pity the fitting isn't M5x0.8 (Standard Thread Pitch) - McMaster has a large number of $3 parts that would work in that case.
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Post by Gordak on Nov 17, 2005 22:53:17 GMT -5
remmeber, drilling a hole in the reservoir is repairable, ruining the thread for the fill vavle is not. -Gordak
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Post by Guinness on Nov 22, 2005 0:41:30 GMT -5
So that I understand and don't trash my new baby the same day I get her...... What are you guys seeing now that all of your weapons are through the 'break in' period? What kind of FPS should one expect with 134a after the guns starts 'shooting right' and the same question for RF22 if anyone has chrono'd that (W/O the reverse the release valve magic) And I plan on using .45's, so will that bring the effective FPS down? My friend jonathonbarton has posted elsewhere that in fact that may increase FPS- is there any real world results on that? Although I'd love to adapt it to use Green Gas for the over-the-top FPS coolness, Its a moot point if I can't use it on the field The thing that confuses me is that the M1 Carbine is 'rated' at 420 FPS w/ .34 8mm rounds- so wouldn't it stand to reason that the Garand would be similar? (But I think the Carbine may have been rated with green gas) Thanks! -G
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Post by gunfreak on Nov 22, 2005 7:46:03 GMT -5
alot of fps go's to the blowback effect, if it was a boltaction like the Carbine then the fps would be higher, but i get like 350fps with mine and it's not done with the break in period yet.
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Post by 2nd bat on Nov 22, 2005 13:53:37 GMT -5
The carbine in fact does use Greengas. It's the blowback action that gets damaged by the more powerful gas (Note part 34) There is a simple fix for that in the O ring however and should be readily available soon.
With regards to the higher FPS with 45 gram which is extremely counter intuitive it is in fact true with the Garand and other long barreled gas guns. What I beleieve happens is the heavier weight BBs have a slower initial acceleration which allows for more gas accumulation before the BB clears the muzzle. The result is greater more efficient use of the gas discharge leading to greater velocity with a heavier BB.
I'm at 274 FPS (give or take with a variable of 7 FPS) with .45 gram and 242 FPS with .34 (Using 134) Weird huh?
Granted this explanation is just my theory but my chrono'd results substantiate the end result. Also unless temperatures are quite low (like now in most places in the US) don't use Greengas in the Garand. The above results were using 134 in warm temperatures after 200 round break in. It's up about 20 FPS following break in. The gun shot harder after a number of rounds were put through it. Others have said the same and again that makes sense especially with a Blowback gun.
Good luck. During the winter I'm of course using my Garand AEGs! 400 FPS with .25 gram 6mm. Official introduction will be at the Battle of the Bulge game in the pacific NW in December!
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