Failure to feed in my Husqvarna M38
Hi everyone,
I bought my Swedish M38 back in October. To test it out, I bought a box of Remington Core-Lokt 140gn 6.5x55 ammunition. I've read around online and a lot of people recommended it for use in the 1896 or M38, so I figure my problem likely isn't the ammunition.
Here is what happens (pardon the blurriness):
https://www.milsurps.com/images/impo...5/ftf1th-1.jpg
https://www.milsurps.com/images/impo...5/ftf2th-1.jpg
https://www.milsurps.com/images/impo...fthreeth-1.jpg
https://www.milsurps.com/images/impo...ngfailth-1.jpg
Of five rounds, the first two that feed from the right of the mag (i.e., the 1st and 3rd rounds) will skid up the feed ramp, and then the bolt will push them forward until the nose of the bullet jams against the 7 o'clock position on the outside of the chamber.
In this following image, you can note a lot of copper fouling on the feed ramp, from the rounds being pushed over it. I don't know if this is to be expected in an M38, but it doesn't look right at all to me.
https://www.milsurps.com/images/impo...daboveth-1.jpg
When the 1st and 3rd rounds are being fed, it is anything but smooth. The sides of the casings are scratched (probably by the walls of the magazine, or the lip of the receiver). It also does not appear as though the extractor is grabbing the cases on the 1st and 3rd rounds as it does on the 2nd, 4th, or even the 5th (which feeds alright, despite also feeding from the right side of the magazine).
I've contacted the previous owner about this issue, and his remedy was simply to ram the bolt home with as much brute force as possible. I can't see a good reason to need to do this on a Mauser, and despite thinking it was pretty dumb, I tried working the action harder than I normally would on my milsurp bolt rifles. The result? Bigger scratches on the cases, and visible damage to the méplat. I didn't expect it to work, but I wanted to see just what this guy was telling me he did.
If anyone could help me out here, it'd be hugely appreciated. I don't know what I'm looking to fix at this point. I'm assuming maybe the magazine spring, but I have no real idea. I'm at my wits' end, because I really love this rifle overall. I shoot competitively with a Swiss Rifle Club, and between this thing and my K31, I have a real love affair with accurate milsurp rifles. It's in great condition overall (the flash makes the mag follower look way worse in that last picture than it does to the naked eye), and I want to be able to use it to hunt, too.
Thanks in advance for any help, and please let me know if you need more information to help me diagnose this issue!
Damage somewhere - or the wrong follower!
There may be damage to the edge of the magazine box, the cutout in the system, or the follower itself. Impossible to tell from the photos - you just have to look at all edges that might snag the case, and remove any burrs.
But one very simple possibility (don't laugh - I've experienced it, having made the mix-up myself:o) is that at some time someone fitted a follower from a different caliber of Mauser! Although they look superficially the same, they are not identical, having subtle differences in the length, height, width and slope of the follower - especially the ridge that holds the first round to one side. The wrong shape here can cause the stack of cases to be at the wrong angle, resulting in a "nose-up" case that bangs on the top of the entrance to the chamber. The case, being forced in at a steeper angle than intended, then becomes scratched by the bottom of the entrance (feed ramp) or the magazine box, and the nose of the bullet may be deformed.
Even if this all sounds potty, please just humor my eccentricities and check that the follower a) has the Swedish crown stamped on it, and b) has not been reshaped in any way.
Patrick
:wave:
9 Attachment(s)
Correct feeding in a Swedish Mauser
Of course, if one forces in the wrong cartridges, there will be problems...
However, if the cartridges are correct, then something is wrong with that rifle, and the following may help:
Correct feeding in a Swedish Mauser
This series of photos shows a Norma "Diamond Line" cartridge being fed into my Carl Gustav. There is no functional difference in this action between the m/96 and a m/96-38 or m/38 short rifle.
First of all, let us look at the closed system.
Attachment 23349
Like all of my rifles, this is a real working rifle, not a safe queen. The woodwork is dented and scratched from its service life, but I can assure you that the action is impeccable.
Now take a look at the open breech.
Attachment 23353
Observe the crown-marked follower. The wrong type of follower can affect feeding.
Please also observe the shape of the rim on the action body. Any dents or burrs on this edge will definitely affect feeding, and, judging by the photos of the "high-nose" feeding, damage to this rim is very likely the cause of the trouble. (The dark streak on the right is an oil smear!)
Take a look at the feed ramp. Note that the start of the ramp is BELOW the level of the follower.
Attachment 23346
A cartridge is now inserted. Note how it lies quite flat.
Attachment 23352
Now we start to close the bolt.
As the cartridge is pushed forwards by the bolt face, note that it does NOT rise up.
Attachment 23354
Note that the tip of the bullet is above the start of the feed ramp. If this is NOT the case, then you have discovered at least one cause of trouble.
The next photo is at the point where the bullet tip contacts the feed ramp.
Attachment 23351
Note that the cartridge is still within the magazine. The cartridge now starts to rise, whereby the rim comes up behind the extractor.
Attachment 23350
Note that the cartridge is NOT tilted up. But the nose moves over to the center line as the bullet enters the chamber.
Attachment 23348
Finally, the rim is completely in the bolt head and securely held by the extractor. The cartridge is now free of the magazine.
Attachment 23347
The bolt can now be pushed home and closed.
IMPORTANT OBSERVATION:
At NO stage is the front of the cartridge pushed up as shown in the photos of the problem rifle. If you follow this photo sequence and compare it with the problem rifle, if should be possible to identify the point where the cartridge is not moving correctly.
Patrick
:wave:
Tight or burred extractor?
Quote:
Originally Posted by
vintage hunter
The pics are'nt the best quality but the cartridges look an awful lot like 6.5 Remington Magnum to me.
I don't think so. The 6.5 Remington Magnum is a) a belted cartridge and b) much fatter.
At present, I think the extractor may be burred. Referring to my previous post: in the last photo in the sequence, when the cartridge is free of the magazine - there should be a small but noticeable end play of the rim within the extractor - maybe 10 thou or so. If there is no such play, then either the case rim or the extractor is at fault. Without some play, the rim cannot rise up behind the extractor. Since the cartridges on the left of the magazine are skewed slightly to the right, they slide up behind the extractor easier than the cartridges on the right - which are skewed slightly to the left.
Simply remove the bolt and check that a case rim fits behind the extractor with enough slop to let you wiggle the case left and right a couple of degrees!
Patrick
:wave:
P.S. The marks on the feed ramp also indicate that the rifle has been mishandled at some time. Look at my photo sequence again - the ramp on my rifle is unmarked. With correct feeding, the bullet tip hardly touches the ramp.
Get yourself a diamond lap, oil, and take your time!
From what you write, it sounds as if taking action for fraud would only make the lawyers richer. And the cure is probably not even expensive. You will have to dismantle the rifle completely to gain access to the inside edge of the lip. (Sorry, I am not going to dismantle my rifle to take a photo!)
Do not go at it with files, sandpaper etc, as you cannot control the abrasive action accurately enough. The tool to use for this (and other similar problems with burred edges) is a diamond lap. I use one called "EZ-lap", color-coded red.
This cuts so finely that the result almost looks like a polished finish, but requires plenty of time, a drop of oil on the cutting surface, a light touch (it is not a rasp!) and frequent checking. When you wipe the oil off the surface you are working on, the bright line will show you when the burr has been cut down flush with the surface again. Never forget the motto "you can file it off, but you can't file it back on again".
And when you have filed down the burrs, use a rotating action of the hand to barely round off the edge, to avoid any sharp edges that would scratch the cartridge case.
Such a lap is not cheap, but it will last for years of careful use.
Patrick
:wave:
Flat or oval - both will do
Quote:
Originally Posted by
watermoccasin
Is the oval one on this page the one you mean?
I would personally prefer to use a flat one in this case. The cutting surface is slightly flexible (because of the plastic backing) so that you can actually get the tip of the flat lap to follow a gradual curve. The curve along the receiver cutout rim is so gradual that with the oval one you may go in too deep and actually cut a slight depression. However, the rate of cutting is soooo slow that as long as you frequently wipe off the oil to check progress, you are unlikely to make that mistake. So either will do the job. Your worst enemy is impatience.
I have over the years acquired a number of these tools - flat, round, and oval. The oval one is excellent for sharpening knife blades to an almost razor edge. The flat one is invaluable for touching up burred trigger edges and the like, without cutting through case-hardening.
But remember - these are not metal files - they are only for removing tiny amounts of metal - so always use a light touch and a drop of oil. Fairly thin oil, as you want the microscopic swarf to float off the surface, not clog the cutting surface.
Patrick
:wave:
2 Attachment(s)
Swede follower and magazine spring - check this
Here is a photo of the follower, magazine and magazine floor plate from my Carl Gustaf.
Attachment 23443
As you can see, the follower sits roughly parallel to the floor plate. If your follower does not sit like this, slide the spring out of the floor plate and follower, and take a look at it.
And here is a photo of the spring alone.
Attachment 23444
Note the symmetrical "M" form If your magazine spring does not look like this, then it should be replaced. A kinked or twisted spring could be a cause of the feeding problem.
Patrick
:wave: