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parent case for 40-70 sharps straight (Read 219 times)

bullshop Senior Forum Member Offline Posts: 361 Joined: Sep 14^th, 2017	parent case for 40-70 sharps straight Jun 6^th, 2026 at 5:00pm	Print Post
	What is the parent case being used to form 40-70 Sharps straight cases ?


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.22-5-40 Oldtimer Offline Posts: 828 Joined: Feb 13^th, 2010	Re: parent case for 40-70 sharps straight Reply #1 - Jun 6^th, 2026 at 5:05pm	Print Post
	Buffalo Arms uses .30-40 Krag case stretched to length.


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1Hawkeye Senior Forum Member Offline Posts: 268 Location: South end of Northern Virginia Joined: Jun 29^th, 2019	Re: parent case for 40-70 sharps straight Reply #2 - Jun 6^th, 2026 at 5:17pm	Print Post
	Yep .30-40 Krag or .303 British. The Krag has a little thicker rim.


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bullshop Senior Forum Member Offline Posts: 361 Joined: Sep 14^th, 2017	Re: parent case for 40-70 sharps straight Reply #3 - Jun 6^th, 2026 at 5:25pm	Print Post
	So if a person does not posses the ability to stretch the case can the 405 Win case be used ? I have a bunch of those.


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Ranch13 Oldtimer Offline Posts: 636 Location: East Central Wy. Joined: Jan 20^th, 2018	Re: parent case for 40-70 sharps straight Reply #4 - Jun 6^th, 2026 at 6:26pm	Print Post
	bullshop wrote on Jun 6^th, 2026 at 5:25pm: So if a person does not posses the ability to stretch the case can the 405 Win case be used ? I have a bunch of those. Yes you can shorten the 405 cases. But the thing you might run into is the rim recess for a rifle cut for 30-40 cases might not let the thicker rim of the 405 cases seat and close the breech.


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marlinguy Frequent Elocutionist Offline Ballards may be weaker, but they sure are neater! Posts: 18025 Location: Oregon Joined: Feb 2^nd, 2009	Re: parent case for 40-70 sharps straight Reply #5 - yesterday at 10:58am	Print Post
	I use nothing but .405 Win. cases in my .40-70SS rifles, and .40-70 Ballard rifles. No issues with 8 of them I use with .405 brass.

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Oakdale Full Member Offline Posts: 103 Location: Maplewood, MN Joined: Jun 7^th, 2017	Re: parent case for 40-70 sharps straight Reply #6 - yesterday at 12:23pm	Print Post
	When I ordered my Model 74 Sharps from CSA in 2010, I told them I’d be using Hornady cases. Case rims have never been a problem. I’m still using the original (150) cases and have (3) unopened boxes of (50) each. I do anneal cases every fall after all the shooting is done. Tom


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cadyk Newbie Offline Posts: 9 Joined: Apr 13^th, 2026	Re: parent case for 40-70 sharps straight Reply #7 - yesterday at 2:12pm	Print Post
	My.40-70 SS was chambered especially for the shortened .405 Hornady cases. The cases are thicker than the reformed .30-40 brass-my chamber is ~0.002" larger in diameter at the 2.5" point than the reformed brass. I've read that some chambers, like Shilohs, are too tight to handle a 0.408" bullet in their standard chambers, but I think think they will chamber for the Hornady brass on demand. cadyk


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