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Raised primers 38-55 duplexed Hepburn load (Read 12992 times)

Marlene Senior Forum Member Offline Posts: 276 Joined: Oct 30^th, 2015	Re: Raised primers 38-55 duplexed Hepburn load Reply #30 - Apr 17^th, 2018 at 9:14pm	Print Post
	could it be that in the first 20, the chamber was clean (or even oily) and the cases slid back with the primer, but as the chamber walls accumulated a bit of fouling, the cases gripped the chamber walls better?


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bruce moulds Senior Forum Member Offline Posts: 290 Location: the antipodes Joined: Mar 14^th, 2015	Re: Raised primers 38-55 duplexed Hepburn load Reply #31 - Apr 17^th, 2018 at 10:20pm	Print Post
	that does not alter the fact that the headspace needs correcting. keep safe, bruce.

	ventum est amicus meus
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craigd Frequent Elocutionist Offline Posts: 2058 Location: midwest Joined: Feb 22^nd, 2009	Re: Raised primers 38-55 duplexed Hepburn load Reply #32 - Apr 18^th, 2018 at 12:44am	Print Post
	I know you had already mentioned that it was a bad idea, but why can't it just be approached as if it were a rimless cartridge. I understand there are differences, but if someone were to set off a primed only case in pretty much any revolver, it'll probably back out enough to bind up the cylinder. I'm still wondering if there are possibilities, assuming all else is okay with the rifle.


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P1 Junior Member Offline Posts: 98 Location: Bradford, Pa. Joined: May 14^th, 2015	Re: Raised primers 38-55 duplexed Hepburn load Reply #33 - Apr 18^th, 2018 at 6:28am	Print Post
	That the primers were somewhat flat shows that they were backing out in the first 20 rounds also. In the next 60 the case isn’t backing out to crush the protruding primer.


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emmett22405 Full Member Offline Posts: 164 Location: Virginia Joined: Sep 21^st, 2009	Re: Raised primers 38-55 duplexed Hepburn load Reply #34 - Apr 18^th, 2018 at 9:43am	Print Post
	I have some spring steel scrap from globe inserts about 0.010 thick was thinking of cutting of a piece tlittle bigger than rim size of 38-55 drilling a hole in middle large enough to pass the firing pin centering on firing pin hole in face of breech block and super gluing it in place whilst waiting for new breech block and seeing how that works in interim


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Longdistance1 Senior Forum Member Offline Posts: 468 Location: Amidon, ND Joined: Feb 11^th, 2013	Re: Raised primers 38-55 duplexed Hepburn load Reply #35 - Apr 18^th, 2018 at 11:54am	Print Post
	If your breechblock is in good shape, as in not pitted or dished in. Make a thin washer out of your .010 spring stock to fit the rim recess of the chamber, fire a few rnds making sure you don't loose the washer, if it works glue the washer into the chamber. HTH Ld1


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emmett22405 Full Member Offline Posts: 164 Location: Virginia Joined: Sep 21^st, 2009	Re: Raised primers 38-55 duplexed Hepburn load Reply #36 - Apr 18^th, 2018 at 3:51pm	Print Post
	breechblock face smooth and verified horizontally and vertically against steel straight edge for bowing/dishing. Shouln't i also cut the washer from 6:30 to 8:00 (facing muzzle) to permit extractor function??


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Longdistance1 Senior Forum Member Offline Posts: 468 Location: Amidon, ND Joined: Feb 11^th, 2013	Re: Raised primers 38-55 duplexed Hepburn load Reply #37 - Apr 18^th, 2018 at 4:38pm	Print Post
	Yes after you see if it works. When you glue it in put some wax or mold release on a fired case and some on a q-tip to coat the main part of chamber not the rim recess, recess needs to be clean for glue to hold, also might be a good idea to put a little mold release on the face of breechblock and on extractor. It would be a shame to glue your action shut. Use the fired case to hold the washer in place till the glue sets, action closed on case. Ld1


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P1 Junior Member Offline Posts: 98 Location: Bradford, Pa. Joined: May 14^th, 2015	Re: Raised primers 38-55 duplexed Hepburn load Reply #38 - Apr 19^th, 2018 at 6:14am	Print Post
	you Could try peening the rim of the case toward the front. That will hold the head against the breach face. I do this with cases made from 30-40 brass for my 40-50SS.


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