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Marlin MR-7 rebarreling Q's

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27 December 2003, 03:49
aladin
Marlin MR-7 rebarreling Q's
I know this Marlin action had threads/shank dia the same as the 700 but I'm asking what the shank length is? I would think the 700 barrels would fit given correct headspacing?

Thanks.
27 December 2003, 04:39
tiggertate
The difference in length of the shank between the MR-7 and R700 is about the same as the recoil lug on the 700. Any pre-threaded 700 barrel will work; just shorten the shank and re-headspace. By the way, if anyone can find or has a bolt for an MR7 they want to shed please let me know. Like the DA I can be sometimes, I lost one and need a replacement.
27 December 2003, 14:30
aladin
Quote:

The difference in length of the shank between the MR-7 and R700 is about the same as the recoil lug on the 700. Any pre-threaded 700 barrel will work; just shorten the shank and re-headspace. By the way, if anyone can find or has a bolt for an MR7 they want to shed please let me know. Like the DA I can be sometimes, I lost one and need a replacement.



Thank You tiggertate. I'm sure you talked to Marlin? I have found them very helpful.
28 December 2003, 02:34
Clio Gun Shop
aladin
I just measured a factory Marlin barrel I removed from a MR-7 that I rebarreled for a customer.The shank measures .772 in length with a .080 thread relief at the shoulder. Hope this helps.
29 December 2003, 06:46
aladin
Quote:

aladin
I just measured a factory Marlin barrel I removed from a MR-7 that I rebarreled for a customer.The shank measures .772 in length with a .080 thread relief at the shoulder. Hope this helps.



Appreciate those numbers, Thanks. To clarify, your saying the shank length with the relief shoulder is .772 or with the relief shoulder [.772 + .080= total shank length]?

What caliber came off that MR-7? I've been impressed with the barrels I've seen on the three MR-7's I've shot.