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Update Savage 340 30-30 headspace problem
 Moderated by: Poacher, DesertMarine
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 Posted: Thu Feb 9th, 2017 06:45 PM
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Master Handloader

Joined: Sun Nov 22nd, 2009
Location: Just West Of Bruzdenbleedin, Texas USA
Posts: 4102
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Are you a handloader?: Yes
Favorite type of cartridge to load?: rifle
My favorite chambering is:: 270Win ...

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Well, it turns out there is nothing wrong with my Savage 340 headspace. I procured Go and NoGo gauges from a friend to check it out since it appeared I had excessive headspace.

I won't regurgitate all my worries again; you can read here
if you want to refresh or haven't seen what led up to my "problem" before.

So during this odyssey I talked with Jim Mitchell in Breckenridge about my "problem" and  rechambering to 30-30AI. He speaks highly of the AI in 30-30 as one of the best AI upgrades, but more importantly he told me about what is probably causing the problem.

Jim says they are seeing a lot of rimmed ammo rims that run on the thin side, thereby causing symptoms that mimic excessive headspace when it really isn't. Seems the ammo makers are saving on brass by thinning it as much as SAAMI specs allow.:thumbs1:

Incidently, my headspace is pretty much minimum. I feel very slight drag when closing on the Go gauge.

So, all you rimmed cartridge shooters out there, here is another reason to fireform and headspace off the shoulder. My groups have shrunk significantly since jamming boolits to blow out the factory cases to fit the chamber.

This old Ugly Duckling 340 may get taken out a little more now. Like the song says:
If you want to be happy for the rest of your life
Never make a pretty woman your wife
So for my personal point of view
Get an ugly girl to marry you   :lol::lol:

"Wimachtendienk, Wingolauchsik, Witahemuiā€¯

He who knows not and knows not that he knows not, is a fool.
He who knows not and knows he knows not is wise.

 Posted: Fri Feb 10th, 2017 02:29 AM
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Joined: Fri Sep 9th, 2005
Location: San Antonio, Texas USA
Posts: 15672
Are you a handloader?: Yes
Favorite type of cartridge to load?: I load everything!
My favorite chambering is:: all of them

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Nice to know the current trends among manufacturers. I haven't bought any 30/30 brass in at least 10 years, and have at least a few hundred. Never had that problem with the older bras.

"The fact that guns can kill another human being is the whole point. That's why they are so darn good at deterring violent criminals". Ann Coulter

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The Handloaders Bench > Gun Smithing > Smithing > Update Savage 340 30-30 headspace problem

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