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Browning B78

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27 May 2021, 18:39
Jim Kobe
Browning B78
Anyone re-barrel one or have it done?


Jim Kobe
10841 Oxborough Ave So
Bloomington MN 55437
952.884.6031
Professional member American Cusom Gunmakers Guild

27 May 2021, 19:32
butchloc
ne - surprise
27 May 2021, 23:01
mdstewart
Now I am not a gunsmith, but I once played one on TV. And no DPCD, I am not a doctor, although many people want me to treat their ails pro-Bono. Good luck with that, I can give you a precise diagnosis with great confidence just like your real MD.

I have always been a fan of the B78, Low Wall, and High Wall. I’ve been told by some doctors of gunsmithing that Brownings are not their favorites to rebarrel. I’ve owned several and all have been super shooters. I want another but the prices have just become as crazy as I am.


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Steyr Classic Mannlicher Fullstock 6.5x55
Steyr Classic Mannlicher Fullstock .30-06
Walther PPQ H2 9mm
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Cogswell & Harrison Hammer 12 Bore Damascus
And Too Many More
11 June 2021, 18:48
Big Wonderful Wyoming
Never owned a B78 that shot worth a damn.

Not sure what it takes to put a new barrel on one.

We had a 30-06, 25-06, and 45-70. The 45-70 was ok, the other ones would have been a lot better with 22 inch barrels.
17 June 2021, 18:34
Jim Kobe
Due to the extractor cut in the breech face, it is necessary to disassemble the entire action. The chambering and threading (metric) is all pretty straight forward. Re-assembly is a bitch; most of the parts need to be installed at the same time and you will need a spring compressor of some kind and and extra pair of hands. The twin hammer springs are a bitch. The furnished field manual assembly guide is not the answer to assembly.

By the way, that guide states "the barrel is not replaceable, you must replace it with the action" which I found out after I had it done.


Jim Kobe
10841 Oxborough Ave So
Bloomington MN 55437
952.884.6031
Professional member American Cusom Gunmakers Guild

19 June 2021, 00:31
dpcd
Yes; rebarreled several of them; JK said it well; it is a bitch to re-asemble; you do need three hands. But installing a new barrel is very doable.
Totally unlike the original Browning/Win High wall though. Miroku design.
19 June 2021, 01:33
model7LSS
I've got a B78 that was rebarrelled to .280 Rem. It's a very nice gun and a great shooter. Trigger is pretty good. I've heard from several that they are a real pain to get right. Some won't even touch them.


Auburn University BS '09, DVM '17
19 June 2021, 20:56
Craftsman
I bought a B78 with a varmint weight barrel in 6 MM Remington the first year they came out. It still shoots under MOA. It has accounted for a large number of coyotes, a few whitetails and one Antelope. I would prefer not ever disassemble/assemble one again.


Craftsman
22 June 2021, 02:07
Big Wonderful Wyoming
There is a B78 in 6mm Remington in El Paso at Cabelas if someone is interested.

Please do not send me PM's asking for their phone number or for me to go look at it for you.

Not sure why people think this is an ok thing to do.
28 June 2021, 01:42
RJM.@Jax.FL
quote:
Originally posted by Big Wonderful Wyoming:
Never owned a B78 that shot worth a damn.

Not sure what it takes to put a new barrel on one.

We had a 30-06, 25-06, and 45-70. The 45-70 was ok, the other ones would have been a lot better with 22 inch barrels.


Had one that shot 20 round groups inside 1 MOA, in 45-70
510 Gr. Brooks 457125, 72.5 grains Swiss 1 1/2
Pistol primers, newspaper disk over primer, milk carton wad over powder .1 compression.
21 July 2021, 18:46
dwcars
Mine in 6MM topped with a 2-7X Burris could do 1/2 MOA all day long, and it was "box stock"~!
01 August 2021, 20:45
SDH
Recently tried to disassemble a Miruko .17WRM to refinish.
It is not possible, talked with my Trinidad classmate who has worked at Browning for 30+ years, "Use a bigger hammer".

Mine was not big enough...cannot disassemble.

I took a M-78 apart 30 years ago, it took me two days to reassemble, said 'never again' but didn't take my own advice.


ACGG Life Member, since 1985