M40 Civilian Equivalent - Wondering if there was any connection between the single shot 40X (early 60's) and models released/used by Uncle Sam?
The stocks on those old beasts were a little heavy, with contact screws for the barrel, t-slot rails on the underside, and relief cuts on the comb to clear the striker ... .
M40 Civilian Equivalent
At one point it was fitted with a newer (action was polished blue) "Remington" marked barrel in .308 with a parquet finish...
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I got this rifle a decade ago in a trade and straightened it out until I shot the best .30 cal group of my life with it....know what they say about book covers.
Edit: Question answered in more detail below. I have an M40 SSA action and it counts as 40x. Best shooting R700 I have. Also on the M40 forums is the guy who helped build the original M40 and his son who worked on the limited SSA run.
The USMC reportedly tested two Remington rifles in 1966, the model 700 ADL and the 40X. 40X came out on top. It had a "medium weight" target barrel and an internally adjustable trigger. I guess the 700 ADL usually has a heavy barrel. (Btw, I read that the medium weight barrel became available on the standard M700 in 1976 or 77' in 308W as the "Varmint contour" barrel. I guess before that date only the 40X had this heavier target barrel).
I'm no expert, but did 1960s era 40Xs have flat bottom receivers?, as opposed to the usual circular format? I read that somewhere but wasn't sure if it was correct or not. All M40 actions obviously had round bottom receivers, but they got the 40X version's cut slot and the heavier center barrel as noted. I'm not sure about the triggers on the original M40s circa 1966-69, but I do know that the M24 adopted by the US Army in 1988 had a special adjustable trigger... sort of adjustable - but it was set at the factory. so It could only increase, not decrease... reportedly Remington didn't want soldiers messing with the triggers on their M24 rifles. (They were usually set at around 3 to 3.5 lbs).
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As others have noted, the M24 receivers were long-action M700s only, but they also have "M24" stamped on the side to indicate a military weapon.
According to this article the 40X in .308 was available as a repeater, I don't have my Peter Senich book available now and it's been years since I read it, but I'm pretty sure that, at least in the initial phase of the evaluation, 40X functions were used.
The .22LR Remington 40X was first released in 1955 as a replacement for the 37 shot rifle. The 40X was the pet project of Remington's Mike Walker, who wanted Remington to have a rifle that could beat "all comers," including Winchester target rifles. The Rimfire 40X "Rangemaster" was originally offered in both standard barrel (S1) and heavy barrel (H1/H2) versions, the H1 with Redfield Olympic sights. In 1959, Remington introduced the centerfire 40X model, again with both standard and heavy barrel versions. Originally offered in .308 Winchester, additional chamberings were available in 1960: 222 Rem, 222 Rem Magnum, .30-06, and .300 H&H Magnum.
As a site, beginning in 1959, Remington worked with the USAMU to develop a heavy, 15-pound International Free Rifle using the 40X action (both rimfire and centerfire). This gun used a completely different stock and was produced in very limited quantities. Only 123 rimfire "Free Rifles" and 594 centerfire "Free Rifles" were sold from 1960 to the mid-1970s.
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A major change occurred in 1965, when the Rem 722 style of the 40X was replaced by the Rem 700, and the 40X was officially renamed the "40-XB". By this time, stainless barrels were available as an option, and Remington introduced a mag-fed, centerfire recoiler for National Match shooters. (Interestingly, although 40-XB reciprocators were produced in many calibers, only the .308 receivers had factory cutting slots.) A wide variety of centerpieces were available from 1965 until 1975 when the 40-XB was officially replaced by 40.-XR, only to be reintroduced in 1985. The rimfire model 40-XB continued as a single shot only until 1970 when Remington added the 40-XB Sporting Rifle, a deluxe mag-fed repeater with a Monte Carlo stock.
The famous Remington 40-XB BR was introduced in 1971. It was a precision single-shot rifle originally chambered in 222 Remington. It had a wider forearm and either a 20" barrel (for the Light Varmint Class) or a 26" barrel (for the Heavy Varmint Class). Other chamberings were added to the 40-XB BR line in 1972, including the .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 believe this makes the 40-XB BR the first factory rifle chambered for 6mmBR.
It is important to distinguish the 40-XB BR from other 40X models. The action on the 40-XB BR was done differently -- to make the action straighter and more uniform. Due to a special machining process, the stamped serial number could not be rolled onto the action and was electro-etched instead. Therefore, you will see "Remington Model 40XBR" and the serial number engraved on the left side of the receiver. You may have read that all 40X and 40XB actions are machined or "skewed" after heat treatment. That is not true. Only the 40-XB BR models used a special manufacturing method for the receiver and it is not equivalent to "blue printing".
Is it safe to assume that 40X/40-XB actions are "better" than standard Rem 700 actions? Paul Coburn wrote: "The receivers use the same barrel threads and dimensions as the standard actions, BUT the 40-X series receivers are NOT taken off the standard production line and 'proven'; they are made (and serialized) to other facilities. The actions There is NO "blueprint". They just get true and square to spec, right from the start. All the 40-X rifles I've owned have had both magazines together, all the screw holes were correct and lined up, and they were perfect."
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For the complete history of the Remington 40X series of rifles, read The Remington 40-X Rifle - 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 40X models and cameras, along with a production chronology.
According to this article the 40X in .308 was available as a repeater, I don't have my Peter Senich book now and it's been years since I read it, but I'm pretty sure that, at least in the initial phase of evaluation, 40X -functions were used. Click to expand... Yes, according to Senich's The One-Round War, the repeater version of the Model 40XB was introduced in 1966 and evaluated by the USMC in 1966. They had clip slots and were marked "Model 40-X" during evaluation. When approved, they were marked "M700" like other actions - but with a requirement for a clip slot, which according to Senich was a concession to the "effect of the rifle team."
The DARPA XM-3 rifles built for the USMC were made on 40x receivers, they were stamped as such like every other 40x I have seen. No answer to the OP's question but a small detail.
For crying out loud. The 40x was typically a custom shop R700 built with the best parts assembly and tweaked as needed and then checked for accuracy like the main factory R700 rifle. With the exception of the early rimfires, they are not that special. In recent history, custom rifle builders have exceeded Remington's usual shop quality standards for less. Despite all of that, Savage came out with a 110 with an Accutriger and the accuracy off the factory floor surpassed the current competition from the Remington custom shop by 40x.
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Isaiah the blacksmith said: For crying out loud. The 40x was typically a custom shop R700 built with the best parts assembly and tweaked as needed and then checked for accuracy like the main factory R700 rifle. With the exception of the early rimfires, they are not that special. In recent history, custom rifle builders have exceeded Remington's usual shop quality standards for less. Despite all of that, Savage came out with a 110 with an Accutriger and the accuracy off the factory floor surpassed the current competition from the Remington custom shop by 40x. Click to expand... Are 40X Actions better than other Rem Actions?
These are cherry R700 actions, but if you want to believe that these guys weren't in the assembly line cherry picking parts, that's fine by me.
Isaiah's Blacksmith said: These are cherry R700 actions, but if you want to believe that these guys weren't in the assembly cherry picking parts, that's fine by me. Click to expand...As the article said, the operations were not normal assembly line operations, the other parts maybe.
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