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A CMP 40x 22lr "simple" build - What do you need?

TOP PREDATOR

Gunny Sergeant
Full Member
Minuteman
Jul 19, 2008
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SCRANTON AREA PENNSYLVANIA
Sorry for the long post, but to all that have went this route, what do you actually need to do to get a complete 40X .22LR rifle together after you have a CMP barreled receiver?

Actually let's start from the beginning with purchasing one....

According to the CMP website, http://www.odcmp.com/Sales/eligibility.htm to get one of these (or any rifle) you need:

1. Proof of citizenship (birth certificate, etc)

2. Proof of age need to be 18yrs old(birth certificate, driver's license, etc.)

3. Affiliation in a CMP club or organization. This could be a registered shooting / sportsman's club, or a VFW, DAV, AL, or U.S. Military services (active or reserves), National Guard, to include retirees. Professional 501(c)3 law enforcement organizations (501(c)3 means a non profit organization) and associations such as the FOP, NAPO, NSA, etc. Most NRA state organizations are CMP affiliated and count.

4. Marksmanship or other Firearms Related Activity - participation in a sanctioned competitive sport, live fire hunter ed course, law enforcement qualification. There is even a very simple form to download and just have a law enforcement officer, range officer, or other that meets the requirements to "sign off" on your safe firearm handling skills, don't need to fire for a score or anything like that just 50 rounds - this seems very easy to do.

5. Be Legally Eligible to Purchase a Firearm - a no brainer...

Then make sure the order forms are filled out properly, the forms are pretty simple.

Also, what may or may not understand correctly, is that <span style="font-weight: bold">the CMP can ship the item to you directly and not have to go to an FFL dealer, is this true? </span>

<span style="text-decoration: underline">R22M40XHBBR</span> Remington 40X - Heavy Barrel - stripped barreled receiver only (No other parts, just receiver and barrel, no trigger group, no bolt).

<span style="text-decoration: underline">R22M40XUSMCBR</span> Remington 40X - Standard Barrel - stripped barreled receiver only (No other parts, just receiver and barrel, no trigger group, no bolt). USMC marked.

I take it these ^^^ are all single feed rifles.

I found this:

A Short History of the Remington 40X Rifles

The .22LR Remington 40X was first released in 1955 as a replacement for the model 37 target rifle. The 40X was a pet project of Remington's Mike Walker, who wanted Remington to have a rifle that could beat "all comers", including Winchester's target rifles. The rimfire 40X "Rangemaster" was initially offered in both standard barrel (S1) and heavy barrel (H1/H2) versions, the H1 including Redfield Olympic target sights. In 1959 Remington introduced centerfire 40X models, again with both standard and heavy barrel versions. Initially offered in .308 Winchester, more chamberings were offered in 1960: 222 Rem, 222 Rem Magnum, .30-06, and .300 H&H Magnum.

As a sidenote, starting in 1959, Remington worked with the USAMU to develop a heavy, 15-lb International Free Rifle using the 40X action (both rimfire and centerfire). This gun employed a completely different stock, and was produced in very limited numbers. Only 123 rimfire "Free Rifles" rifles and 594 centerfire "Free Rifles" were sold from 1960 through the mid-70s.

<span style="font-weight: bold">Rem 700 Action Replaces 722 Action for 40X Series Rifles
A major change took place in 1965, when the Rem 722-style action on the 40X was replaced by a Rem 700 action, and the 40X was officially renamed the "40-XB". </span>At this time, stainless barrels were offered as an option, and Remington introduced a mag-fed, centerfire repeater for National Match shooters. (Interestingly, though 40-XB repeaters were made in many calibers, only the .308 receivers were factory-slotted for clips.) A wide variety of centerfire chamberings were offered from 1965 through 1975 when the 40-XB was officially replaced by the 40-XR, only to be re-introduced in 1985. <span style="font-weight: bold">The rimfire model 40-XB continued as single-shot only until 1970 when Remington added the 40-XB Sporting Rifle, a deluxe mag-fed repeater with Monte Carlo stock. </span>

40-XB BR -- The Cream of the Crop
The famous Remington 40-XB BR was introduced in 1971. This was a precision, single-shot rifle initially chambered in 222 Remington. It featured a wider forearm and either a 20" barrel (for Light Varmint class) or 26" barrel (for Heavy Varmint Class). Other chamberings were added to the 40-XB BR lineup in 1972, including .222 Rem Mag, 6mm Int'l, 6mm-47 and .308 Win. In 1978 Remington added the 22 Rem BR, and in 1979 the 6mm Rem BR was added. We think this makes the 40-XB BR the first factory rifle chambered for the 6mmBR.

It is important to distinguish the 40-XB BR from other 40X models. The action on the 40-XB BR was finish-machined differently -- in order to make the action straighter and more uniform. Because of the special machining process, the serial number could not be roll-stamped on the action, and was electro-etched instead. That's why you'll see "Remington Model 40XBR" and the serial number etched on the left side of the receiver. You may have read that all 40X and 40XB actions are machined or "blue-printed" after heat-treating. That's not true. Only the 40-XB BR models used a special production method for the receiver, and it's not equivalent to "blue-printing".

Are 40X Actions Superior to Other Rem Actions?
Is it safe to assume that 40X/40-XB actions are "better" than regular Rem 700 actions? Paul Coburn has written: "The receivers use the same barrel threads and same dimensions as the standard actions, BUT the 40-X series receivers are NOT taken from the standard production line and 'trued'; they are made (and serial numbered) in a different facility. The actions are NOT 'blue printed'. They are simply made true and square to spec, from the start. All the 40-X rifles I've owned had both lugs mated, all screw holes were true and in line, and they were impeccable."

For a complete history of the Remington 40X series of rifles, read The Remington 40-X Rifle -- A Legend in its Own Time by Paul Coburn. You may also enjoy reading the Rem 40X section of Roy Marcott's History of Remington Firearms. Marcott offers a definitive list of all the 40X models and chamberings, along with a production chronology.


and this from other forums on the subject of 40X:

"If the 40X rimfire action has the knurled oval bolt knob, it will sit in a 700 SA stock. Depending on how the stock is inletted, whether with a solid magazine well or open, you may to relieve an area for the screw which holds the rimfire loading ramp in. Triggers are interchangeable as well.

Now if the 40X rimfire action has a round bolt knob, this is based on a 722 action. Action screw spacing is the same however the rear tang is larger and may require stock modification to seat properly. This larger tang may also create some issues with triggers that use a 700 style safety lever.

I believe that all rimfire 40X's marked with a B or an R suffix to the S/N are based on the 700 action. If the S/N has no suffix, most likely this is the 722 based action.

The 722 based 40X will have a "straight" not "swept" bolt, and a 700 stock will require a rather ugly relief of wood in the frontof the bolt notch. The stock will also need a bit of releif in the tang and rear portion of the reciever area. No biggie, just releive it, and bed it.

A 722 based reciever is wider, and a 700 or 40x or 40XB trigger will hang on it, but the safety lever will not clear, as the reciever is wider right where the safety lever comes up past it. Again, that can be "fixed" with judicious application of a heat sink and a common propane torch (go slow) to bend the safety lever to the correct "sweep" to miss the reciever, then releive the wood in the area of the safety lever on the stock too. If you plan, go slowly, and have an eye for detail and art, you can make it look ok.
If the 40X is the swept bolt type, it plops right in and you just need to add the tiny screw that mounts the mag floorplate".



So now that you've ordered your receiver w/ barreled action, what's next?

Do they come drilled / tapped for scope bases?

Are they missing the internal / external magazine cutout in the bottom of the receiver, or is there a need to fill that area? If so what to you fill it with?

<span style="text-decoration: underline">Bolts</span> - Obviously they need a bolt, and PTG has them for $199.00. They also sell an ejector plate, do the CMP actions come with this? Is there another source for bolts? I see that you will have to have the headspace checked or adjusted.

<span style="text-decoration: underline">Triggers</span> - will any 700 action trigger bolt right on? There are several out there, including the Rem Xmark for under $100.00, several by Rifle Basix, Timney, Jewell, etc.

<span style="text-decoration: underline">Stocks & Bottom metal</span> - So it appears that the action will fit into any 700 SA stock, True or False? Can you then use any 700 SA bottom metal?

<span style="text-decoration: underline">Other</span> - Is there anything else needed (parts wise) to piece together a complete rifle? (springs, pins, pillars, barrel / recoil lug, feeding ramp, etc.)

It just seems (at face value) rather easier than I thought to get one of these together after you get the receiver / barrel. Can it really be as simple as taking the parts off a used or new model 700 SA and putting them on your 40X barreled receiver? If so, this will actually take care of alot of the stock and bottom metal questions, and make it a really easy build. Sell the centerfire action and barrel, and you almost pay for the CMP receiver / barrel.

It can't be this simple, is it?
 
Re: A CMP 40x 22lr "simple" build - What do you need?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DFOOSKING</div><div class="ubbcode-body"> SDWhirlwind. Top, just check his posts... you'll find he has replied to most of your questions asked above before!
smile.gif

</div></div>

will do, i looked through the search, i could find bits and pieces but nothing that tied them all together.

thanks for the tip.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

TOP PREDATOR
Sent you a PM hopefully answering all of your requests, questions, etc etc concerning the 40-X and building up a CMP barreled reciever. Perhaps it would help here for some but will leave that up to you as to whether you wish our conversation be public.

Hope it explains satisfactorily.

Dennis
 
Re: A CMP 40x 22lr "simple" build - What do you need?

You can kinda see here from this shitty pic of my 722 based reciever in a 700 stock that the tang sets higher

Remington40-Xrimfire009.jpg

Remington40-Xrimfire008.jpg
 
Re: A CMP 40x 22lr "simple" build - What do you need?

I just completed a 40X CMP build a month or so ago. There's really not much more to it. You'll need sights, if you're going with iron.

What you end up with won't be a collectable, but it should be a shooter. Make sure to request a 40XB barreled receiver. The one I received was very clean.

PTG can supply a threaded bolt handle, which will give you more options to change things up later on.

You'll end up having fun, but spending close to seven/eight bills for a franken rifle. Something to think about.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

Forgot to add...

There are some additional 40XB parts you'll need to finish out the receiver. Exercise your google fu for a list. If you can't find it I'll dig it up and PM. There is also an exploded diagram out there too.

My barreled receiver was D/T'd and had two bases installed. It's a bit of a cr@p shoot with CMP. Some will have some of the additional parts you need, some will not.


 
Re: A CMP 40x 22lr "simple" build - What do you need?

Another thing to consider...

The headspace will need to be checked/adjusted in addition to setting the firing pin depth. When I ordered my PTG bolt, I also got a GO headspace gauge for 22lr. It passed the GO test, I then placed a paper punch out on top of the gauge and rechecked for the NO-GO case. It passed as the bolt wouldn't close. The paper is 0.003/0.004" thick.

If you check the headspace yourself, make sure to remove the extractors first.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

^^^great tip on checking the headspacing.

thanks alot for the input and the PMs sent, i also found this post https://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=2409111 and http://206.125.47.33/forum/ubbthreads.php?ubb=showflat&Number=2684408 which has alot of the same information that i asked in the OP, and additional good links in it.

So far what I got is this:

The receivers are solid on the bottom (unless a rare repeater), the only bottom metal needed is to cover the mag well hole in the stock, if the stock you are using has a floorplate.

Stocks - any mdl700 SA stock. this is really good news, as you can get a factory SPS stock for cheap, and more special stocks $500 +. However some fitting my be required near where the barrel meets the receiver.

Triggers - any trigger for the mdl 700 will work.

Bolt releases - the rimfire ones are different than the centerfire ones, these have to be purchased, along with reproduction bolt stops, springs and pins, feeding ramp / ejectors. a suggested source of supply and a possibly one stop shopping is Outback Gun Parts. Another is Remington itself

Remington 1-800-243-9700
F16114 Receiver Filler Spring $12 (bin 8150)
F16113 Receiver Filler Piece $12 (bin 8158)
F19785 Ejector $33.60 (bin 8173)

Bolt - the obvious and popular solution is the PTG bolt for 199.00, but will probably need headspacing done on it.
http://www.pacifictoolandgauge.com/ even has a threaded version for an oversized knob. They also have some other parts for the 40x.


Many that have gone this route have said that it's probably cheaper to buy an already built 40x, but if you don't have $800.00 to $1000.00 to put down in a lump sum, piecing it together as you go seems a reality.

So thanks a bunch sniper hide rimfire junkies, IMO it now doesn't seem so intimidating to build one of these, the trick is to jump on the barreled receiver when it is available.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

Looking forward to seeing your scores!
American made top end shooter VS the produce of socialist europeans.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

I just picked up my 40X HB barreled action (no bolt or trigger). I'm going to give "Big Green" a call tomorrow to see what parts I can come up with. I've done a little google-foo and so far I've come up with

1) bolt stop
2) bolt stop pin
3) bolt stop spring
4) bolt stop release

I've got to call PTG as well for a bolt. I'm hoping I can find an older Rem trigger on here.

IMHO the blueing is pretty good, but if I go with a bake on finish who has a decent turn around?

Stocks...Where to find decent wood stock/triggerguard?

What am I missing? On the right track?

To the OP, I apologize if this post is out of place, I'm just trying to get specifics on what I need and thought this was a good start.

TIA
 
Re: A CMP 40x 22lr "simple" build - What do you need?

I did the CMP 40XB HB build thing and besides being a mix master, it's one of my favorite rifles.

Numrich used to have several wood stocks that would work for the 40XB.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

...oh and contact PTG as soon as possible. Thye're pretty much the only game in town for a 40X rimfire bolt. Best to send them your money and get on the list.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

Yeah, they told me 6-8 weeks on a bolt, but I just read that midway now has them for $50 more. I'll make a decision by Monday. I still have a few parts to get so I'm not in a huge hurry. My dad just got his USMC 40X from the CMP the other day so we're kinda working on ours together.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

About how often do they become available, if anyone knows? I'll be non-ambulatory for july and the second half of june and would love to work on one if I could get my hands on one.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

The last of them were sold off last Oct and stripped barreled receivers all gone by the 1st of the year. CMP is out of the 22 business. What few show up in the future will either be sold at the stores or at auction from Orest @ CMP has stated.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

...well that's just bad timing for me. So it's pretty much just a waiting/luck game to see what pops up in the classifieds here and around the internet, unless one magically appears in store near you?
 
Re: A CMP 40x 22lr "simple" build - What do you need?

Just keep your eyes open for deals. I picked up an original 40XB HB stock, trigger group, bottom metal, and hand stop for $150 shipped off CMP's forum. I just need the filler/spring/extractor and my rifle will be built for under $800 with glass.

I would wait till you get your barreled action to your door (yes you don't need an FFL, they will ship to you directly) and see what is included. When I was at the north store last summer there were a couple BA's that had load trays, filler plates, etc included.... you may get lucky.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Corprin</div><div class="ubbcode-body">Just keep your eyes open for deals. I picked up an original 40XB HB stock, trigger group, bottom metal, and hand stop for $150 shipped off CMP's forum. I just need the filler/spring/extractor and my rifle will be built for under $800 with glass.

I would wait till you get your barreled action to your door (yes you don't need an FFL, they will ship to you directly) and see what is included. When I was at the north store last summer there were a couple BA's that had load trays, filler plates, etc included.... you may get lucky. </div></div>

Uh, the CMP DOES NOT HAVE ANYMORE barreled receivers. Been sold out for months!!! Unless one of the stores would have some leftovers?????
 
Re: A CMP 40x 22lr "simple" build - What do you need?

wow, didn't look at the post date.... I fail.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

On the subject of rimfire rifle builds. I did notice that the CMP store had some Winchester 52 heavy barreled actions (no bolt, trigger etc.). Does anyone know who carries parts (bolts) for these? Are these as easy to build out as the 40x or more work than they are worth?
 
Re: A CMP 40x 22lr "simple" build - What do you need?

Finding a 52 C or D bolt is near impossible and expensive if you do. Same for triggers. A bolt just sold on Ebay today or yesterday for $360ish. Makes for an expensive barreled action as triggers will bring from $250 for a factory C to $500+ for a Canjar and as much as $950ish for a Kenyon.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

ouch.....

I have a 40x and really enjoy it. Guess I will stick with that. I was really hoping to find something that i could work on that was magazine fed instead of single shot.

Seems like the folks over at PTG would do well to start manufacturing bolts for the 52's as well.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

The 52 receiver aren't copied like the 40-XB's by manufacturers such as Stiller which is the reason for the PTG bolts to start with. The 52 barreled receivers that CMP have left are the D model and they are single shot. The C's and prior were repeaters. You would have to be alot luckier than me to buy a stripped barreled receiver and then stumble across a reasonably priced bolt and trigger assemblies.
smile.gif


The only 52 that were drilled and tapped were the E prefix and not very many at all made. They aren'/weren't as 'custom' friendly as the 40-X. With them you can use 700 triggers, rings/bases, stock inlets etc etc. There is nothing in the 52 design that uses parts or parts can be used for another real popular centerfire. Only thing really not proprietary is the mag on the repeaters that fits the 69 and 75 etc but again rimfire.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

guys, my local FFL dealer has a 52 on the shelf, complete, and in good to very good condition. i can't remember if it's a C or D, i think he's asking 449.00 or 499.00, i coould be wrong. but i know it is a 52.

PM me if anyone is truely interested, and i'll pass on the information. plus i may get a gold star in my folder for selling some of his inventory.
 
Re: A CMP 40x 22lr "simple" build - What do you need?

Good point SDWhirlwind. I did not think about the fact that so many of the parts for the 40x's are actually take offs from 700s. That may have something to do with availability.....