View Full Version : M1917 extractors
4234142342423434234442345
Here's some M1917 parts that have some obvious differences that could have caused interchangeability issues.
The M1917 extractor on the left is a CV extractor. It is without a gas hole, is in unused condition and works very smoothly to extract a spent case in all modes.
The one in the center is a Winchester extractor with a gas hole drilled near the claw. The claw is slightly worn on the left side. It still works well to extract the spent case from the receiver if the cartridge is loaded from the magazine but the bolt requires a greater amount of force to close on a cartridge that's loaded directly into the receiver. The difference in the radius that's cut into the leading edge is probably the cause.
The extractor on the right fits a M1917 bolt but the claw is different and it won't close on a 30-06 cartridge. Does anyone recognize it? Maybe a P14?
Dan Shapiro
11-01-2017, 03:28
Does anyone recognize it? Maybe a P14?
Yep. For the Brit 303 "rimless" cartridge.
https://enfieldteile.de/Extractor-6
Does anyone recognize it? Maybe a P14?
Yep. For the Brit 303 "rimless" cartridge.
https://enfieldteile.de/Extractor-6
Thanks, i thought so. Are P-14 bolts interchangeable with M1917 bolts?
Dan Shapiro
11-02-2017, 07:05
Are P-14 bolts interchangeable with M1917 bolts?
Yes...........and no. Yes, it will fit into the receiver, BUT the angles on the bolt faces are different where they meet the face of the barrel. The cutout for the extractor (on the face of the barrel) is also different.
I would say NO unless you are a gunsmith who has worked on these conversions. The compatibility of the M1917 bolts are OK. There was no compatibility between the three manufacturers of the P14 rifles on the bolts. Additionally the P14s were made in two different MKs, MKI and MKI* which involved two different bolts and barrels, so you are contending with 6 different P14 bolts that may not fit.
--fjruple
I would say NO unless you are a gunsmith who has worked on these conversions. The compatibility of the M1917 bolts are OK. There was no compatibility between the three manufacturers of the P14 rifles on the bolts. Additionally the P14s were made in two different MKs, MKI and MKI* which involved two different bolts and barrels, so you are contending with 6 different P14 bolts that may not fit.
--fjruple
Yikes. That means it would take some deep knowledge of the bolt variations in order to recognize and buy a replacement bolt for a P-14 and a Model 1917.
Merc-- The M1917 bolt should be no problem as the US Army Ordnance insisted on compatibility. The P14 is a totally different animal. The Winchester P14 is notorious for being not compatible with anything. In any rebuilds stick with P14 parts and manufacturer's code. Each part of the P14 is marked with a "W" , "R" and "E". In the past two years I have rebuilt 4 P14 rifle projects where an individual attempted to just swap out P14 parts with M1917 parts and guess what it does not work.
--fjruple
How do you identify a P14 bolt vs a Model 1917 bolt?
Merc--
The quickiest way is to check and see if the serial number was stamped on the bolt handle. The Winchesters were stamped on the top of the handle and Remington and Eddystone were stamped on the bottom. That's not say that the serial number has been removed by grinding which I have seen. As I stated before the P14 was manufactured with two different types of bolts, the MKI and MKI*. The main difference is a larger locking lug on the MKI*. The MKI* will not fit into the MKI rifles but the MKI will fit into the MKI* rifles. The MKI* can be identified with a * stamped onto the bolt handle.
Below is an illustration of the differences between the M1917 bolt and P14 bolt
42359
My P14 bolts fit the 303 rimmed cartridge and I can use the P14 bolt for belted magnum case heads like the 300 Win Mag. When I use a M1917 bolt for a magnum belted case head I have to open the bolt face and then there is the large Mauser type claw on the 1917. And then there is the smoke hole, the hole came later.
F. Guffey
4237642377423784237942380
Here are pics of the two bolts, the Parkerized bolt has a W and a flaming bomb stamped on the handle and the other bolt has an E and a flaming bomb stamped on the handle. The only physical difference I can see is the bolt face on the W bolt is made from two different assemblies.
Merc--
M1917 bolt bodies regardless of the manufacturer were one piece affairs. There was a compatibility problem with the initial manufacture of Winchester M1917 rifles as Winchester jumped the guns and started to manufacture the M1917 rifle before the US Army Ordnance approved a standard for compatibility. This would later cause a problem later to the point that General Pershing stipulated that no Winchester M1917 rifles were to be shipped to the AEF in France. An acceptable level of compatibility for the M1917 was only achieved in January 1918. Does your Winchester M1917 bolt handle have a circle enclosing a star stamped on it?
--fjruple
PS-- There are minor machining variations between manufacturers.
No, just a W on the lower side of the handle and a flaming bomb on the upper side.
Merc--
Do you have the Winchester rifle the M1917 came off of? Is there a circle around a star on the receiver?
--fjruple
PS-- The bolt face on my Winchester M1917 is not machined like yours.
The original bolt that was installed on my early star circle stamped Winchester SN 65030 when I bought it was made by Eddystone and is on the left in the pic (above) with the one piece shiny face. The Eddystone bolt works perfectly so it's safe to say it was made for the M1917 rifle.
The Winchester bolt originally had the P14 extractor installed on it so it's more than likely for a P14 rifle. The W bolt fits the M1917 receiver and passes headspace field, but won't extract an empty case if loaded directly into the M1917 receiver with either M1917 extractor installed. It's the first bolt I've seen with a two piece face.
Merc--
If there is no serial number on the bolt handle just a flaming bomb the bolt is for a M1917. I am beginning to suspect that your Winchester bolt was modified for another caliber by an unnamed gunsmith. as far as I know Winchester bolt body for either the P14 and M1917 were one piece.
--fjruple
PS-- The star within a circle indicates the Winchester passed the compatibility test for the M1917. Winchester used the same star within circle for those rifles they produced as the Pattern 1914 MKI*. The other two manufacturers used an * on the barrel, reciever, extractor and bolt handle to denote their production of MKI*.
Powered by vBulletin® Version 4.2.5 Copyright © 2024 vBulletin Solutions, Inc. All rights reserved.