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11-03-2019, 07:43 PM | #3 | |||||||
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I thought the same thing as I had a cracked stock head on a top lever after firing RSTs and had pierced primers, but someone pointed out to me that on a hammer gun this cannot happen as the plunger is contained outside of the stock head. So even with pierced primers one should be safe. But I would wear shooting glasses, although the plunger fit is quite tight. From then on I did not worry about the poor thickness on the Cheddite primers in RSTs. |
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The Following 3 Users Say Thank You to Jerry Harlow For Your Post: |
firing plunger length |
11-04-2019, 07:16 PM | #4 | |||||||
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firing plunger length
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My plungers are .992" OAL. They stand out just over .170" from the breech face with the plungers fully depressed, if that means anything. What length should they be/do others have? (I'll post on the hammer gun forum as well) Thanks, Seth |
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11-04-2019, 08:37 PM | #5 | ||||||
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Cheddite primers are much more easily pierced than any I use in reloading their hulls. At one point I had a half dozen top lever 16s and two were notorious primer piercers. I removed them and had them ground to a very even radius as they were more sharply pointed. Never pierced another. I buy lots of Cheddite NPEs without any fears.
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The Following User Says Thank You to edgarspencer For Your Post: |
11-04-2019, 08:56 PM | #6 | ||||||
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80% of the time, my 20 gauge top lever pierced the RST primers. The primers must be made of a thinner gauge metal. I know others have complained to RST to no avail.
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11-04-2019, 10:42 PM | #7 | ||||||
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Well I don't completely trust internet research, but from what I can gather they use Cheddite primers, who in turn use a little thinner gauge metal. Hammer guns, at least in some cases -including mine- seem to have pins or plungers that protrude further than others. When combined with a plunger that extends at an angle I could easily see that a thinner gauge metal would have a tendency to tear when subjected to the sideways forces from the angled impact in addition to the usual inward ones. I'm hoping to get some numbers from other members on what their plunger measurements are (without getting too personal) so that I have an idea where it would be good to end up for an overall length. The radii on both plungers are very smooth (thanks for the info, though, edgarspencer) so I'm not sure what else I could do.
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The Following 2 Users Say Thank You to Seth Mackay-Smith For Your Post: |
11-03-2019, 06:15 PM | #8 | ||||||
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Regardless of what you call them, the firing pins of this gun need to be assessed by a competent double gunsmith. There are a few reasons why your gun pierces primers. Length is only one of them. The correct reasoning of the problem and the proper solution needs professional help. It won't cost much, and you can rely on the gun from then on.
And, yes. Cheddite primers are not classic double gun friendly as a rule. |
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11-03-2019, 06:27 PM | #9 | ||||||
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Thanks; I remember seeing some smiths suggested that are not too far from me in far northern VA. I'll talk to them for sure but I really like to get other people's thoughts as well because I think that too often it's a problem if you don't have enough information when asking for a fix, no matter how good the gunsmith is. Of course I'll have them look at the springs as well, as I understand they can be an issue.
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11-03-2019, 06:33 PM | #10 | |||||||
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Mr. Rise, can you help our new fellow Seth by checking the length on your plungers so that he can compare them? On an 1891 gun they are most probably from a top action gun. I would help, but I am in SoDak chasing birds. |
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The Following User Says Thank You to Bruce Day For Your Post: |
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