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Loose primers (Read 2996 times)

Mick B Frequent Elocutionist Offline Posts: 1007 Location: 19 Ian Nicol St watson ACT aus Joined: Apr 11^th, 2013	Re: Loose primers Reply #15 - Jul 6^th, 2024 at 12:52am	Print Post
	I may have picked the wrong place to post this but I have about 15 40/65 cases that have developed loose primer pockets to the point, that a seated primer may sometimes just fall out when the cartridge is handled. To counter this problem with any, that seat a bit to easy, I put a small dab of fast drying clear nail varnish over the primer which kind of glues it into place and stops it falling out during handling. My question is this, is there any simple quick way of making the primer pockets a bit tighter, without requiring expensive tools or skills. Cheers Mike.


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Bluedog Participating Member Offline Posts: 39 Joined: Jan 14^th, 2024	Re: Loose primers Reply #16 - Jul 6^th, 2024 at 6:47am	Print Post
	Mick B wrote on Jul 6^th, 2024 at 12:52am: I may have picked the wrong place to post this but I have about 15 40/65 cases that have developed loose primer pockets to the point, that a seated primer may sometimes just fall out when the cartridge is handled. To counter this problem with any, that seat a bit to easy, I put a small dab of fast drying clear nail varnish over the primer which kind of glues it into place and stops it falling out during handling. My question is this, is there any simple quick way of making the primer pockets a bit tighter, without requiring expensive tools or skills. Cheers Mike. I don’t have any advice on salvaging the brass, hopefully someone may. Mine live in a coffee can with mostly brass I have rolled a case mouth compressing black powder……. They get along well together, talking about the good ole days I presume Jason


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KFW Oldtimer Offline Posts: 558 Location: Powell Wy. Joined: Dec 18^th, 2016	Re: Loose primers Reply #17 - Jul 6^th, 2024 at 7:54am	Print Post
	This simple fix requires a lathe. Make a anvil with a annular slightly raised ring that fits like a shell holder in your press. You are swaging a crimp ring like on military brass.


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Mick B Frequent Elocutionist Offline Posts: 1007 Location: 19 Ian Nicol St watson ACT aus Joined: Apr 11^th, 2013	Re: Loose primers Reply #18 - Jul 6^th, 2024 at 8:32pm	Print Post
	If the "simple fix" requires a lathe I hate to think what the "complicated fix" requires. My total tool kit consists of some scr, ewdrivers, files and a hammer. My mechanical skills are zero. Mike.


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KFW Oldtimer Offline Posts: 558 Location: Powell Wy. Joined: Dec 18^th, 2016	Re: Loose primers Reply #19 - Jul 7^th, 2024 at 8:03am	Print Post
	A lathe is nothing more than another tool that most real "gun cranks" should own after a few years of playing this game. It would be like a carpenter not owning a table saw. Small lathes are still to found at reasonable prices.


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calledflyer Frequent Elocutionist Offline Posts: 3584 Joined: Mar 9^th, 2015	Re: Loose primers Reply #20 - Jul 7^th, 2024 at 3:42pm	Print Post
	most of us lacking a lathe is how most gunsmiths remain in operation- if we all could do it, .....pooof!


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Mick B Frequent Elocutionist Offline Posts: 1007 Location: 19 Ian Nicol St watson ACT aus Joined: Apr 11^th, 2013	Re: Loose primers Reply #21 - Jul 7^th, 2024 at 10:42pm	Print Post
	I don't have a lathe, or the ability to operate one, as I live in a small two bedroom house if someone gifted me a lathe I would have to put in my bedroom. Perhaps I should lash out and buy some more cases, it's only money. Cheers Mike.


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texasmac Frequent Elocutionist Offline Posts: 1911 Location: Central Texas Joined: Aug 16^th, 2004	Re: Loose primers Reply #22 - Jul 8^th, 2024 at 12:11am	Print Post
	MikeB, here ya go. Wayne ===================== See the following video: (You need to *Login* or *Register* to view media files and links) Items needed: • 0.209” pin gauge • 0.210” pin gauge • In place of the two pin gauges a primer pocket go/no-go gauge is available from Brownells (100-015-614WB Large Primer Pocket Swage Gauge) • 5/8” hardened chrome steel ball bearing • Hammer • Flat file • Long bolt that snugly fits the case necks. Make sure the end is nice and flat. If the .210” pin gauge slides into the primer pockets than the pocket is too large. The goal is to reduce the diameter of the primer pocket until the .210” gauge will not fit and the .209” slides in but is a snug to tight fit. • Place the ball bearing on the top of the slightly open jaws of a vice. If the ball bearing tends to roll out of position, tap it with a hammer to make a small indentation in the edges of the jaws for the bearing to set in. • Insert the bolt into the case. • Set the case primer pocket on the ball bearing and strike the bolt with a hammer to flare out the inside of the primer pocket. • Once the primer pocket is sufficiently tight the file is used to remove any ridges or raised metal around the primer pocket created by the tightening process. When finished the face of the case head should be flat.

	NRA Life (Benefactor & President's Council) Member, TSRA Life Member, NSSF Member, Author & Publisher of the Browning BPCR book
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MarkTrew Participating Member Offline Posts: 10 Joined: Jun 5^th, 2024	Re: Loose primers Reply #23 - Jul 8^th, 2024 at 3:15pm	Print Post
	Didn't somebody used to make a tool for swaging primer pockets back to size? I don't think it would help for the brass shown. I had one years ago, used it on a couple boxes and thought twice about the program. Mark Trew


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condorsc Full Member Offline NRA Life/Benefactor, ASSRA, SCV Life Posts: 157 Location: Beaufort, S.C. Joined: Nov 13^th, 2021	Re: Loose primers Reply #24 - Sep 3^rd, 2024 at 1:18am	Print Post
	Bluedog wrote on Jun 22^nd, 2024 at 6:25pm: Hello all, Is it normal for new starline 38-55 2.125 brass shot behind a breech seated 333 grain tapered Bullet with 15 grains of unique (1350 fps) to have the primer loose to the point of blow by coming around the primer? Primers fall out with virtually no effort after only a couple firings. Was shooting 23 grains of 4198 with the same Bullets and no issues. Thank you for any input! Jason I use 18 gr. of 4198 as a go to load. Good in BP rifles and smokeless. 23 gr. will show primer punctures and other serious signs.


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nuclearcricket Oldtimer Offline Posts: 758 Joined: Oct 15^th, 2008	Re: Loose primers Reply #25 - Sep 3^rd, 2024 at 8:35am	Print Post
	To answer a question, yes there was a company that made primer pocket swage to tighten up loose primer pockets. the company was Mounting Solutions Plus. The swage was for worn primer pockets and not for those expanded by excessive pressure. There is a rod that extends up through the case and sets in a block, the swage has a guide pin that goes through the flash hole and a shoulder that swages the primer pocket top a bit when you tap it with a soft hammer. Sam


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