M40 Build Guide

Re: M40 Build Guide

Dennis: What I can't get answered is: The Drawing in Chandlers book, "Death From Afar" page 194, shows a clip-slot noted as by Remington for the M40-700. Also noted are the two screw holes for the receiver sight for the X40 rifles.

Is or isn’t Chandler correct: What gives?
 
Re: M40 Build Guide

Gutowsky,

I just looked through the posts by Mike Fletcher. I didn't see stated anywhere that one of the two holes on the receiver bridge was removed during the machining of the clipslot. I think you need to revisit that.

There would be no sense in cutting the receiver that far back. Even if, for some odd reason, someone was to take the scope off of a M40 and use a stripper clip to load it, the stripper clip would be over the top of the bolt and behind the magazine of the rifle if the clipslot was cut back that far! It wouldn't even be functional at that point.

Furthermore, if someone were to remove the forward screw hole on the bridge, the original Redfield mount wouldn't even be able to be screwed down on that end of the receiver.

I'm sorry, but whomever came up with that idea/theory is mistaken.
 
Re: M40 Build Guide

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Gutowsky</div><div class="ubbcode-body">Dennis: What I can't get answered is: The Drawing in Chandlers book, "Death From Afar" page 194, shows a clip-slot noted as by Remington for the M40-700. Also noted are the two screw holes for the receiver sight for the X40 rifles.

Is or isn’t Chandler correct: What gives?
</div></div>

What, specifically, is your question? Is Chandler correct about what?
 
Re: M40 Build Guide

What through me off was the picture of the correct Redfield 40X base (this thread)(posted by M40A1 peacemaker on 06/30/10). Only one screw holds the rear of the scope base. I didn’t sufficiently look at Chandlers Drawing, just assumed! My fault.

I'll go stand in the corner!
 
Re: M40 Build Guide

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Gutowsky</div><div class="ubbcode-body">Dennis: What I can't get answered is: The Drawing in Chandlers book, "Death From Afar" page 194, shows a clip-slot noted as by Remington for the M40-700. Also noted are the two screw holes for the receiver sight for the X40 rifles.

Is or isn’t Chandler correct: What gives?
</div></div>

I did not or can not comment on Chandler's Book "Death from Afar" because I have never read it. I refuse to 'speculate' without a pic or whatever.

As noted, the Redfield 40X marked base used the front of the 2 rear holes for mounting and the 2 on front receiver ring. Why was a base marked 40X used? I don't have a clue! I have never personally seen one marked as such. Except for square corners on the front end it is identical in length to all 700SA marked bases from that time period. Perhaps they were marked as such to keep them seperate during blueing/parking or whatever from others and had been verified a perfect fit???

As for the 2 screw holes on left side of rear bridge that was common on ALL 700 long and short actions into the letter prefix's. I have an A, a B prefix Model 78 and even a C prefix from mid 80's which has been drilled and tapped on the left rear bridge. The C could perhaps have been done by someone other than Remington????? However it was common well into the '70's from my own ownership of near 100 700's over the yrs.

We can only guess that perhaps the Corp or Remington decided/requested the receivers be clip slotted for the M700/40 in case they were ever required/needed in the field to use or pratice with aperature sites if a scope wasn't used????? Only specualation, and we know what that is worth!!!!

So is it agreed that facts, pics etc lead us to believe there is only ONE type of receiver, clip slot and scope base used, this being verified and really confirmed from all pics indicating same????

Just wondering, as I am not going to argue about "what ifs" or "probablys"
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Re: M40 Build Guide

I don't know the proper way to go about this, but I just wanted to add a request that this thread be made a sticky. LOTS af good information on a popular topic. Thanks.
 
Re: M40 Build Guide

I have been following this thread and the M40A1 build thread for awhile now. I have a late 80's PSS with walnut stock and 1st Gen Accurange as my M40 clone.

I also have all the parts minus a barrel for an early M40A1 build as well. I have a USMC return stock with matching bottom metal, 271,*** serial# 700 short action and another 1st Gen Accurange with an early Redfield mount and 4 screw rings.

Last week I traded for an IHC Garand. The seller told me he had a nice plastic case that he would ship it in. Of all the cases he could have shipped in :

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This case is in amazing condition foam and all, just wish it was brown. I dont know how old it is or if it has any collector value. I just know that I've read that Remington shipped the M40's in these cases.
 
Re: M40 Build Guide

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Gutowsky</div><div class="ubbcode-body">nomnre606: I've used these from Numrich. Did four so far, two to go.
http://www.gunpartscorp.com/catalog/Detail.aspx?pid=553690&filter=553690&catid=0</div></div>

I grabbed one of these a while back. Rounded the forend, sanded it down, still coating with BLO, and threw in some marinetex, and finally an SPS tactical with 60's vintage mounts and a Redfield Revolution with the accurange ret. Sorta a mix of new and old.

spsptacM40.jpg


 
Re: M40 Build Guide

On the Redfeild base. Will it say 40X on it? I have one that looks correct. But it does not say 40X. I have seen several different pictures in the post. Is the front of the mount square ? Mine is square on the rear and front. Except the front tops are rounded off.
 
Re: M40 Build Guide

Yes they have 40X stamped about in the middle of the thin portion as pics have indicated. Front and rear both square. The later M40A1 mount was square or near square on the rear and a bit rounded on from corners but pics of the M40 mount show clearly square corners. I personally have never seen a 40X marked Redfield base and wonder how many Redfield actually made and if any were sold other than the military contract? Other than the 40X marking I see little difference. Both use same screw holes and size.
 
Re: M40 Build Guide

Few have ever seen a RF 40X marked base. Most will be 700SA.
If yours is rounded on the top front, it is a later base and though it will work, it is not exactly correct.
 
Re: M40 Build Guide

Just so you guys that are building clones know, you can take a Redfield 700sa base (early version) and have a welder build up the rounded corners to be square.

I have had this done to 2 bases. Makes for a very close copy. Though, the 40x base has a bit different length.
 
Re: M40 Build Guide

I apologize in advance, as I'm sure that this is a repeat question, but I can't seem to find the info. anywhere. Anyhow, I finally found my six digit (321,xxx) SA Remington 700 and am ready to start my project. My question is, what barrel is available today, that would be the best match for that rifle? I have looked on both Shilen's and Douglas' websites and don't see a 24" with a .830 dia. at the muzzle. Shilen has a "#17 Remington Varmint (Sendero)" with a .830 dia. at the end of a 28" barrel. It looks like it's also .830 at the 24" mark, so maybe this is it??? Douglas has a "Remington Varmint 007" that has a .830 at 26", but doesn't show what the dia. is at 24". Any advice would be greatly appreciated.

Thanks, Greg V
 
Re: M40 Build Guide

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Greg V</div><div class="ubbcode-body">I apologize in advance, as I'm sure that this is a repeat question, but I can't seem to find the info. anywhere. Anyhow, I finally found my six digit (321,xxx) SA Remington 700 and am ready to start my project. My question is, what barrel is available today, that would be the best match for that rifle? I have looked on both Shilen's and Douglas' websites and don't see a 24" with a .830 dia. at the muzzle. Shilen has a "#17 Remington Varmint (Sendero)" with a .830 dia. at the end of a 28" barrel. It looks like it's also .830 at the 24" mark, so maybe this is it??? Douglas has a "Remington Varmint 007" that has a .830 at 26", but doesn't show what the dia. is at 24". Any advice would be greatly appreciated.

Thanks, Greg V
</div></div>

You are correct on both of the above as to what you have posted from Shilen and Douglas. The Douglas will only vary by a few thousandths if cut @ 24". As the M40 used factory Rem barrels from everything I have seen the maker you choose for a close resemblance is really up to you unless you want only a Rem barrel? None of the ordinary proof marks etc were on the M40 from the pics I have seen, only the 7.62 Nato marks? A few thousandths one way or another don't matter as factory barrels over the yrs have varied a bit @ muzzle depending on finish quality etc. My .02cents worth on the subject anyhoo!
 
Re: M40 Build Guide

I talked to Douglas yesterday and found out that they make a "USMC profile" M40 barrel. I would think that this one would be about as close as a guy could get, without actually finding an original.

I have a question regarding the finish on the barreled action. I have read that it was finished in a "green" park, but all of the pictures that I have seen look like gray park. I always thought that the "green" park that you see was just gray park turning color over time. Anyone out there have any input/comments on the barreled action's finish. Anyone out there have any experience with the Cerakote finishes? Cerakote is what GA Precision usues on their rifles. I looked at the color chart on Cerakote's website and didn't see anything that looked like "green" park. They have one called "sniper gray" that looks pretty good. What finishes have you guys used on your M40 clones?

Cerakote Finishes

Thanks, Greg V
 
Re: M40 Build Guide

You should check if the USMC contour is now or the older varmint contour. Most say the M40 had a varmint contour. Make sure you check.
 
Re: M40 Build Guide

You are right, thanks. I told them that I needed it for the early, Vietnam M40, but I should make sure that it is the Remington varmint contour with the .830 muzzle dia.

Thanks, Greg
 
Re: M40 Build Guide

Greg, what did you find out from Douglas? I just recently got my receiver back from TBA (and Mike did an EXCELLENT job on the clip-slotting, BTW!) so the next step is choosing and ordering a barrel.
 
Re: M40 Build Guide

Pvt.Joker,
Douglas mailed my barrel out Tuesday. They said it was the M40 (Rem. med. varmint contour). I'll give you all the specs. when it arrives. Cost was $293.00.
Greg
 
Re: M40 Build Guide

OK; got my receiver back from Mike Lau at Texas Brigade Armory, and thought you guys might like to see how it came out. I was VERY pleased with the job he did. It took a little while to get back, but it was well worth the wait.
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Re: M40 Build Guide

Joker that is a great looking action. Mike does great work but he does take a long time. What stock are you going to use and where did you get it?

I do have one question, we say that the barrel is 24", now is that that the overall or is that measured from the recoil lug? I ask this because the M40a1/a3 actually use 25" barrels but say 24 because its measured from the recoil lug.
 
Re: M40 Build Guide

USMC Grunt, thanks. The stock I am planning on using is one off a 1977 700 ADL that I have been working with. It's not finished yet, but it is opened up for the BDL bottom (but not the barrel; I wanted to wait until I had that in hand to fit it correctly) and the nose still needs reshaping. It may not be 100% correct as a clone, but it is going to be about as close as I can.
 
Re: M40 Build Guide

I measured my M40 from Remington and its only 23" from the recoil lug. Very interesting. Has anyone done the clipslotting themselves? I have a mill and I wanted to do it myself. Is this a hard operation to do or not?
 
Re: M40 Build Guide

USMC Grunt, Mike_I here on the Hide, has a set of the original blueprints for the clipslot. There does seems to be several different clipslots on orginal rifles out there. Joker Laus work looks very very good, much better than what I had done on my rifle. And overall barrel lenght should be 24 inches.
 
Re: M40 Build Guide

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Greg V</div><div class="ubbcode-body">Douglas is calling my barrel a 25", but it is 24" from the recoil lug forward. </div></div>

Barrel length is measured from the bolt face to the muzzle. So Douglas would be correct your barrel is 25"
 
Re: M40 Build Guide

So then, an original M40 barrel would be 24" (23" from recoil lug)? I guess it's better to start out too long, than too short. The barrel and action will be going to Mike Lau as soon as I have everything and I'm sure he knows exactly what to do.
 
Re: M40 Build Guide

Yea, I was wondering about the markings myself. I actually have two receivers now, the 321,xxx and a 266,xxx. I am thinking about using the 266 for my first build, the M40. What's your opinion on the markings? Would you use 7.62 NATO or a date code? I actually like the 7.62 NATO marking. I don't think a guy can go wrong with that one.

I'm thinking about building an M40A1 with the 321 receiver, but that will be down the road some time.

Thanks, Greg V
 
Re: M40 Build Guide

Yeah, I was kind of wondering about that myself. Does anyone already have a set of stamps to do the barrel markings with the proof stamps, date codes, "U.S." receiver stamp, etc. or ideas/experiences with doing these successfully on a clone? I was thinking about the electric-etching type engraving process, but I'm not sure how well that would do for these. Also, I was waiting to see what Douglas sends to Greg- is it going to be unmarked, or will it have some sort of "Douglas" stamp on it? I was hoping to get something plain to work with. Also, I wonder what sort of crown it will have? I know the originals had the flat crown with that lip around the edge.
 
Re: M40 Build Guide

Boy, I never even thought to ask them if it would be plain, with no markings. I'm with you, I want to start with a "plain" barrel. Douglas told me that they would put a flat crown on it, but TBA will have to cut and crown it anyhow, as I believe it will come too long.
 
Re: M40 Build Guide

I dont know how many people would have the stamps to do the inspector codes and all that. Barrel blanks are just that, blanks with nothing on them at all. Your gunsmith would have to thread, chamber, and crown the gun. There are other ways you can get them but if you just order a barrel blank thats pretty much what is it, your gunsmith does the rest. The next M40 build Im going to do stamp it 7.62 NATO. The U.S. part Mike will do and the U.S. is only done on the 6 digit receivers. Original M40 and then when they were redone to M40a1.