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Feb 12th, 2024
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 Need some help
#7981821
09/21/20 01:30 AM
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Joined: Feb 2020
Posts: 553
AMF
OP
Tracker
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OP
Tracker
Joined: Feb 2020
Posts: 553 |
I need the bore diameter of the Marlin 1895 in 45-70. I can't find it. Anybody know it?
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Re: Need some help
[Re: AMF]
#7981833
09/21/20 01:34 AM
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Joined: Dec 2008
Posts: 4,506
syncerus
Extreme Tracker
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Extreme Tracker
Joined: Dec 2008
Posts: 4,506 |
Nominally.458. If you need anything more precise than that, you need to slug your barrel.
NRA Patriot Benefactor & DSC Lifer
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Re: Need some help
[Re: AMF]
#7981843
09/21/20 01:41 AM
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Joined: Feb 2020
Posts: 553
AMF
OP
Tracker
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OP
Tracker
Joined: Feb 2020
Posts: 553 |
No, that's groove. I need bore.
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Re: Need some help
[Re: AMF]
#7981850
09/21/20 01:47 AM
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Joined: Sep 2008
Posts: 3,771
P_102
Extreme Tracker
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Extreme Tracker
Joined: Sep 2008
Posts: 3,771 |
Nominal bore diameter of the 45-70 Government was .450, can’t speak for the Marlin if they were different.
Do not trifle in the affairs of dragons, for thou art crunchy and taste good with ketchup.
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Re: Need some help
[Re: P_102]
#7981859
09/21/20 01:51 AM
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Joined: Feb 2020
Posts: 553
AMF
OP
Tracker
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OP
Tracker
Joined: Feb 2020
Posts: 553 |
Nominal bore diameter of the 45-70 Government was .450, can’t speak for the Marlin if they were different. That's what I suspect, but wasn't sure. Most riflings are cut to .004, but there's always that chance... Thanks!
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Re: Need some help
[Re: AMF]
#7981940
09/21/20 03:13 AM
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Joined: Nov 2006
Posts: 297
FTWshooter
Bird Dog
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Bird Dog
Joined: Nov 2006
Posts: 297 |
SAAMI says .450, I checked my notes from when I helped slug on an older Marlin 1895 45-70 (1962) a while back it was .449
Last edited by FTWshooter; 09/21/20 03:13 AM.
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Re: Need some help
[Re: AMF]
#7981977
09/21/20 03:56 AM
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Joined: Sep 2006
Posts: 32,493
kmon11
junior
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junior
Joined: Sep 2006
Posts: 32,493 |
Never measured mine and just used jacketed bullets in it, LINK45-70 info is about 1/2 way down.and says In 1972, Marlin introduced the Model 1895 chambered in .45-70. Initially, these rifles were made with 8-groove Microgroove barrels, with grooves that were .060" wide and .003" deep. The next year this was changed to a 12-groove barrel, with the other specs remaining the same. Again, groove diameter is spec-ed out at .4587", so oversized cast bullets are called for in these guns. All of these .45-70 Microgroove barrels had a 1 in 20-" twist.
Last edited by kmon1; 09/21/20 03:58 AM.
lf the saying "Liar, Liar your pants on fire" were true
Mainstream news might be fun to watch
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