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Discussion Starter #1
I have a Winchester Model 94AE BB chambered in .444 Marlin I inherited from my grandfather and I am curious when it was made. The serial number is 6435XXX. I think my grandfather changed the wood on it because it has straight grips installed and not the checkered grips I see in other images of 94BB's. The rifle has the fat reinforcement bulge built into the rear of the receiver where the locking lug(s) are so I am pretty sure it's a Big Bore model.

If it is possible, I would also like to know what the twist rate on the rifle is. The barrel length is 20" and it looks like it has micro-groove rifling. But from what I have read on here in different threads, the 94 Big Bore only had a 1 in 20" twist rate barrel and the micro-groove barrels had a 1 in 38" twist rate in .444 Marlin chambering. Some insight would be much appreciated.

If I posted this in the incorrect category, I apologize I just joined.

Thanks,
ZacharyPW.
 

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My Timber Carbine has a 1-12” twist. The old thread linked below talks a bit about twist.
Back when these rifles were new – about 2000 – 2002 we did a lot of talking about twist, meplat width, COL and the rather rare micro groove rifling. At the time I believe there were only one or two posters who had micro-groove barrels on their Winchesters.
In the 2000 Gun Digest only the Black Shadow with the synthetic stock was pictured as chambered for the .444 Marlin. The Timber Carbine was listed but not pictured.
In the 2001 Gun Digest the standard Big bore is pictured and the Timber Rifle is again mentioned, but not pictured. The twist is listed as 1-20”. The Black Shadow is still listed.
I believe if you check your barrel it will be a 1-20”twist but you can never say never.
I bought my Timber Carbine in 2001 and the last three are 790 so our rifles are not far apart but both Winchester and USRA are known for out of sequence serial numbers.

https://www.shootersforum.com/handloading-procedures-practices/680-200-grain-bullets-444-a.html
 

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Discussion Starter #3 (Edited)
My Timber Carbine has a 1-12” twist. The old thread linked below talks a bit about twist.
Back when these rifles were new – about 2000 – 2002 we did a lot of talking about twist, meplat width, COL and the rather rare micro groove rifling. At the time I believe there were only one or two posters who had micro-groove barrels on their Winchesters.
In the 2000 Gun Digest only the Black Shadow with the synthetic stock was pictured as chambered for the .444 Marlin. The Timber Carbine was listed but not pictured.
In the 2001 Gun Digest the standard Big bore is pictured and the Timber Rifle is again mentioned, but not pictured. The twist is listed as 1-20”. The Black Shadow is still listed.
I believe if you check your barrel it will be a 1-20”twist but you can never say never.
I bought my Timber Carbine in 2001 and the last three are 790 so our rifles are not far apart but both Winchester and USRA are known for out of sequence serial numbers.

https://www.shootersforum.com/handloading-procedures-practices/680-200-grain-bullets-444-a.html
How would one look for the barrel twist? My grandfather taught me everything I know about handloading and firearms, however I was never taught how to slug barrels. Does learning the twist rate have to be that involved?

According to what you have said about your serial number, mine is a little more than 200 rifles before yours. That's kinda neat.

Since yesterday I found a tag (I assume it was attached to the rifle when it was inside Kittery Trading Post) from when my grandfathers nephew bought the rifle and it lists the rifling as micro-groove and 1 in 38" twist. BUT I don't trust Kittery Trading Post because their employees mislabel firearms all the time, so I want to investigate a little more.

Thanks,
ZacharyPW


Edit: I misread the serial number on mine, last 3 digits are in the mid 200's. So maybe between mine and yours they changed the rifling twist.
 

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Discussion Starter #6 (Edited)
According to info from the video, my barrel does a little over half a turn in 20".


So I think that means the twist rate is 1 in 38". I guess the barrel IS micro-groove. KTP employee's got it right for once.

Does anyone on the forum know how many micro-groove 1 in 38" Big Bore rifles in .444 Marlin were made? Just curious.

Thanks for your help.

ZacharyPw
 
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