Winchester 94 Trapper jamming
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- Levergunner 1.0
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- Joined: Mon Dec 31, 2007 3:15 am
Winchester 94 Trapper jamming
OK, what is the freaking deal! I dont know how it happens, but the freaking cartridges will pop out and get stuck above the floor plate, requiring me to remove the link pin, pull down on the floor plate and shake out the cartridges. What is the deal with this? Is this a common problem? How do I fix this issue? This is really bugging me since this is my go-to gun.
- J Miller
- Member Emeritus
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Yep, thats the under the carrier jam. It's caused by the cartridge stop on the top front of the link being worn, broken, or by tolerances stacking the wrong way.
Here is a picture of the link removed from the receiver. The cartridge stop is the projection on the top. Not all links are shaped the same. Different vintages are shaped different and different calibers are also different.

You can replace the link, or have the cartridge stop built up a bit, or you can peen the stop to make it long/taller then reshape it. But that's the problem.
It's not really common although we do hear about them frequently. And it seems more so with the newer 94s than the older ones.
Browning/Winchester has parts as well. Here is their link:
http://www.winchesterguns.com/services/parts/terms.asp
Joe
Here is a picture of the link removed from the receiver. The cartridge stop is the projection on the top. Not all links are shaped the same. Different vintages are shaped different and different calibers are also different.

You can replace the link, or have the cartridge stop built up a bit, or you can peen the stop to make it long/taller then reshape it. But that's the problem.
It's not really common although we do hear about them frequently. And it seems more so with the newer 94s than the older ones.
Browning/Winchester has parts as well. Here is their link:
http://www.winchesterguns.com/services/parts/terms.asp
Joe
***Be sneaky, get closer, bust the cap on him when you can put the ball where it counts
.***

My experience with the 45 is that a new link will not fix it. The 45 has the smallist rim lip of the pistil calibers. Raising the height of the stop projection did not fix it either. The next step will be to move the stop projection on the link slightly forward-too many unfinished projects.
Have two 94-45 win, One works perfectlu and one jambs. no amount of parts swapping will fix the bad one or screw up the good one.
Dave
Have two 94-45 win, One works perfectlu and one jambs. no amount of parts swapping will fix the bad one or screw up the good one.
Dave
- Griff
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IMO, part and parcel of the problem in taking a perfectly good design and cobbling it up to make it something it ain't... a pistol caliber rifle. Rim has little to do with the cartridge stop, it does however, have a lot to do with extraction. That's another issue with .45Colt chambered repeater type long guns. A new link, might still be within spec, but as Joe said, "stack up" of a variety of "in spec" parts can still make one not work right. Building up of a stop will generally stop the problem. The timing with the lifter (carrier in some circles) is also crucial to proper functioning. Either or both can contribute to the "dreaded "Marlin" jam in a Winchester!Caco wrote:My experience with the 45 is that a new link will not fix it. The 45 has the smallist rim lip of the pistil calibers. Raising the height of the stop projection did not fix it either. The next step will be to move the stop projection on the link slightly forward-too many unfinished projects.
Have two 94-45 win, One works perfectlu and one jambs. no amount of parts swapping will fix the bad one or screw up the good one.
Dave


Interesting enough, when I joined this jolly group a couple or three years ago, it seems there was a rash of '92 Rossis going thru the works that had the same issue. Maybe, very slowly, we'll get all the '94s fixed also!


Griff,
SASS/CMSA #93
NRA Patron
GUSA #93
There is a fine line between hobby & obsession!
AND... I'm over it!!
No I ain't ready, but let's do it anyway!
SASS/CMSA #93
NRA Patron
GUSA #93
There is a fine line between hobby & obsession!
AND... I'm over it!!
No I ain't ready, but let's do it anyway!
my 94 jam
Pullnshoot-
I had an Trapper AE in 44 magnum that exhibited the same behaviour. After dismantling and reconstructing an older 94, I had the nerve to get very serious about ferreting out the issue. What I discovered was a loose screw that could only be accessed by removing the loading gate cover. The screw holds a spring in place under tension, so it didn't work out further, if that makes any sense?
A friend of mine is a lion hunter, and wanted the little gun badly. I told him the issues, and cautioned him to keep a screwdriver handy to take it apart if necessary. We spent a range day trying to get it to fail, and couldn't, and it hasn't yet to my knowledge. (It is his "client" gun, while he carries a legal pistol as well)
I had an Trapper AE in 44 magnum that exhibited the same behaviour. After dismantling and reconstructing an older 94, I had the nerve to get very serious about ferreting out the issue. What I discovered was a loose screw that could only be accessed by removing the loading gate cover. The screw holds a spring in place under tension, so it didn't work out further, if that makes any sense?
A friend of mine is a lion hunter, and wanted the little gun badly. I told him the issues, and cautioned him to keep a screwdriver handy to take it apart if necessary. We spent a range day trying to get it to fail, and couldn't, and it hasn't yet to my knowledge. (It is his "client" gun, while he carries a legal pistol as well)
Respectfully, Gordon
- J Miller
- Member Emeritus
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- Joined: Sat Mar 31, 2007 7:46 pm
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Griff,IMO, part and parcel of the problem in taking a perfectly good design and cobbling it up to make it something it ain't... a pistol caliber rifle. Rim has little to do with the cartridge stop, it does however, have a lot to do with extraction. That's another issue with .45Colt chambered repeater type long guns. A new link, might still be within spec, but as Joe said, "stack up" of a variety of "in spec" parts can still make one not work right. Building up of a stop will generally stop the problem. The timing with the lifter (carrier in some circles) is also crucial to proper functioning. Either or both can contribute to the "dreaded "Marlin" jam in a Winchester! Razz Laughing
Not to be argumentative, but my 94AE in .45 Colt has never had one lick of trouble with extraction. Not with any brand of .45 Colt cases and this includes the tiny rims of the balloon head cases. Personally from my experience Winchester (USRAC) did a fine job with their modifications. I'm sure there are some that are stinkers, but mine works fine.
My Marlin 1894 also has zero extraction problems with the .45 Colt as did my Rossi 92 copy.
I believe a lot of the trouble with Win 94s and the pistol cartridges is that shooters get in a hurry and short stroke the lever, or work it in a jerky manner rather than one smooth stroke down and back.
Just my experience;
Joe
***Be sneaky, get closer, bust the cap on him when you can put the ball where it counts
.***

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- Levergunner 1.0
- Posts: 69
- Joined: Mon Dec 31, 2007 3:15 am
-
- Levergunner 1.0
- Posts: 69
- Joined: Mon Dec 31, 2007 3:15 am
I only get undercarrier jam in my Trapper when I do something wrong. It ussualy happens when I short stroke the action when I am in a hurry. When I take my time and cycle the action fully it runs great.
Jeremy
GySgt USMC Ret
To err is human, To forgive is devine, Neither of which is Marine Corps policy
Semper Fidelis
GySgt USMC Ret
To err is human, To forgive is devine, Neither of which is Marine Corps policy
Semper Fidelis
- J Miller
- Member Emeritus
- Posts: 14906
- Joined: Sat Mar 31, 2007 7:46 pm
- Location: Not in IL no more ... :)
You've probably got a borderline problem then. No matter how fast or slow you work the action it shouldn't jam like that. Now a short stroke does mess them up sometimes.JReed wrote:I only get undercarrier jam in my Trapper when I do something wrong. It ussualy happens when I short stroke the action when I am in a hurry. When I take my time and cycle the action fully it runs great.
Joe
***Be sneaky, get closer, bust the cap on him when you can put the ball where it counts
.***

I recently acquired a 94 Legacy .44 Mag. The first time out I was ginger/ short stroked the action and had a round jump and tie up the gun. I have since run 30 mags.(240 rounds) full through the gun without a hitch. The only difference was that I operated the action smartly without short stroking. 1886.
When I get in a hurry I tend to short stroke on occasionJ Miller wrote:You've probably got a borderline problem then. No matter how fast or slow you work the action it shouldn't jam like that. Now a short stroke does mess them up sometimes.JReed wrote:I only get undercarrier jam in my Trapper when I do something wrong. It ussualy happens when I short stroke the action when I am in a hurry. When I take my time and cycle the action fully it runs great.
Joe

Jeremy
GySgt USMC Ret
To err is human, To forgive is devine, Neither of which is Marine Corps policy
Semper Fidelis
GySgt USMC Ret
To err is human, To forgive is devine, Neither of which is Marine Corps policy
Semper Fidelis
- Griff
- Posting leader...
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Actually, I do agree. However, going back to 1969 when Winchester introduced the Mdl 94 in .44Mag., and this has been my complaint since I learned of the progression of the Winchester lever models; why not just re-introduce the Model '92, a pistol cartridge levergun par excellance?J Miller wrote:I believe a lot of the trouble with Win 94s and the pistol cartridges is that shooters get in a hurry and short stroke the lever, or work it in a jerky manner rather than one smooth stroke down and back.
Joe
Griff,
SASS/CMSA #93
NRA Patron
GUSA #93
There is a fine line between hobby & obsession!
AND... I'm over it!!
No I ain't ready, but let's do it anyway!
SASS/CMSA #93
NRA Patron
GUSA #93
There is a fine line between hobby & obsession!
AND... I'm over it!!
No I ain't ready, but let's do it anyway!
- J Miller
- Member Emeritus
- Posts: 14906
- Joined: Sat Mar 31, 2007 7:46 pm
- Location: Not in IL no more ... :)
Griff,
The earlier 94s of the 60s and 70 are set up a bit different inside than those of the late 70s and on.
I have the carrier, bolt, and most other internal parts from the 60's version of the 44 Mag, and have compared them to my 85 Trapper. I can see enough differences so I understand they could be problematic.
I've never had one from that vintage though, so when I make my comments, they are in regards to the later versions only.
Joe
The earlier 94s of the 60s and 70 are set up a bit different inside than those of the late 70s and on.
I have the carrier, bolt, and most other internal parts from the 60's version of the 44 Mag, and have compared them to my 85 Trapper. I can see enough differences so I understand they could be problematic.
I've never had one from that vintage though, so when I make my comments, they are in regards to the later versions only.
Joe
***Be sneaky, get closer, bust the cap on him when you can put the ball where it counts
.***

- Modoc ED
- Advanced Levergunner
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- Location: Northeast CA (Alturas, CA)
There's a lot of knowledge, experience, and truth in that statement Joe. A lever action is meant to be operated smartly and with authority. That can probably be applied to many of those that experience the Marlin Jam too.J Miller wrote:I believe a lot of the trouble with Win 94s and the pistol cartridges is that shooters get in a hurry and short stroke the lever, or work it in a jerky manner rather than one smooth stroke down and back.