ASSRA Forum - Correct OAL for Stevens 44 25-20 Single Shot Load?

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Correct OAL for Stevens 44 25-20 Single Shot Load? (Read 11361 times)

MJT Junior Member Offline Posts: 50 Location: Indiana NW Joined: Aug 17^th, 2015	Re: Correct OAL for Stevens 44 25-20 Single Shot Load? Reply #15 - Nov 16^th, 2015 at 10:46am	Print Post
	8.0 gr. 2400
	« Last Edit: Nov 16^th, 2015 at 10:53am by MJT »

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uscra112 Frequent Elocutionist Offline Posts: 4079 Location: Switzerland of Ohio Joined: May 7^th, 2007	Re: Correct OAL for Stevens 44 25-20 Single Shot Load? Reply #16 - Nov 16^th, 2015 at 1:01pm	Print Post
	Ah, HA! The firing pin isn't tight in it's hole. I see the primer cup flowing into the annular clearance, enough that it is sticking there so that the breechblock is pulling the primer part-way out when the action is opened. Phil

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calledflyer Frequent Elocutionist Offline Posts: 3852 Joined: Mar 9^th, 2015	Re: Correct OAL for Stevens 44 25-20 Single Shot Load? Reply #17 - Nov 16^th, 2015 at 5:07pm	Print Post
	I'm with Dave on this one. While it may have a sloppy firing pin hole in addition, this series of photos demonstrates way overloaded signs of primer flow. Maybe that block is springing back, the rim is thin, and all the rest; but it looks like overloads to me.


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BP Frequent Elocutionist Offline Posts: 8039 Location: Westside Joined: Aug 27^th, 2006	Re: Correct OAL for Stevens 44 25-20 Single Shot Load? Reply #18 - Nov 16^th, 2015 at 5:17pm	Print Post
	I'd restart load development again only *AFTER* both the excess headspace and the sloppy firing pin tip to block fit has been repaired by a qualified gunsmith.

	There are three kinds of men: The ones that learn by reading, the few who learn by observation, and the rest who have to pee on the electric fence and find out for themselves. Proud Noodlehead
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MJT Junior Member Offline Posts: 50 Location: Indiana NW Joined: Aug 17^th, 2015	Re: Correct OAL for Stevens 44 25-20 Single Shot Load? Reply #19 - Nov 16^th, 2015 at 7:51pm	Print Post
	Thank you Gentlemen! I appreciate the diagnosis, and will get the rifle repaired. I see exactly where your thinking is going through the signs and symptoms, and agree with the final conclusions! Again, thank you immensely! MJT


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uscra112 Frequent Elocutionist Offline Posts: 4079 Location: Switzerland of Ohio Joined: May 7^th, 2007	Re: Correct OAL for Stevens 44 25-20 Single Shot Load? Reply #20 - Nov 16^th, 2015 at 7:53pm	Print Post
	Guys, you are right that the load is pushing the primer into the firing pin space, but that's not what is leaving the primers so high. A Model 44 doesn't flex that much. And even if it did, the primers would be pushed back in by the springback. If the headspace really is .012", the primers would be protruding by only that much, no more. One or two of those are two or three times that. I've never seen anything like that before, but I've been studying the 44 action closely enough for long enough that I'm confident with what I wrote. The deformed primers are sticking so tight in the hole that the breechblock is pulling them out. The primers are not loose in the pocket. That's why no carbon ring. I certainly agree that the rifle needs prompt attention. But his load is not excessive for a 44 in good condition. Calculates to something like 20k psi in Quickoad.
	« Last Edit: Nov 16^th, 2015 at 8:02pm by uscra112 »
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uscra112 Frequent Elocutionist Offline Posts: 4079 Location: Switzerland of Ohio Joined: May 7^th, 2007	Re: Correct OAL for Stevens 44 25-20 Single Shot Load? Reply #21 - Nov 16^th, 2015 at 7:55pm	Print Post
	@MJT: Sent you a P/M

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