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Do these Primer Strikes look good to you?

This is a discussion on Do these Primer Strikes look good to you? within the Ruger Single Action forums, part of the Pistol & Revolver Forum category; The two on the left are from my Ruger SP101 with a trigger job, lightened 12lb hammer spring, and 8lb trigger return spring. The two ...


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Old February 23rd, 2012, 03:21 PM   #1
 
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Do these Primer Strikes look good to you?

The two on the left are from my Ruger SP101 with a trigger job, lightened 12lb hammer spring, and 8lb trigger return spring.
The two on the right are from my Ruger NM Blackhawk with a lightened 21lb trigger spring and 30oz trigger spring.

Do these look normal?
The old primer strikes on the Blackhawk would produce a very faint black color every 1 out of say 100 rounds. Just wondering if these primer strikes look perfect, or if they're slightly light.

Please let me know.
I hope Iowegan sees this!
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Old February 23rd, 2012, 03:36 PM   #2
 
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Do all your rounds go "boom" when you squeeze the trigger? If so, who cares how the primer strikes "look" on the spent cartridge case?
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Old February 23rd, 2012, 03:44 PM   #3
 
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I'd say soft primers and as long as there is no hole letting gas blow back it is ok.
They are deep, but, I cannot see signs of gas burning in the pic; however, the ones on the left are shiney, but, still no gas burning.
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Old February 23rd, 2012, 04:03 PM   #4
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Without having them in hand it's a little tough but looks like pressure signs to me with the ridges. What are the loads??
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Old February 23rd, 2012, 05:35 PM   #5
 
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They look like good solid hits to me with no piercing, cratering or excessive flattening.

Best Regards,
ADP3
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Old February 23rd, 2012, 05:58 PM   #6
 
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Pics can be a little hard to tell, as Terry said. But I would agree with ADP3:
Quote:
Originally Posted by ADP3 View Post
They look like good solid hits to me with no piercing, cratering or excessive flattening.
It might be helpful to pair them up with pre-spring-replacement photos.
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Old February 23rd, 2012, 06:02 PM   #7
 
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Oh, and what are your loads, as Terry asked?
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Old February 23rd, 2012, 06:06 PM   #8
 
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Look fine to me and as long as they are igniting the power they are doing their job. Can't see any difference from those in my blackhawks with the 18 $ 19 lb. hammer springs with the 30 oz. trigger return springs I shot earlier today.
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Old February 23rd, 2012, 06:08 PM   #9
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DIYautotech, The dents look pretty normal. As for pressure signs from primers ... it's just not a reliable indicator. I have seen many factory loads totally flatten primers and they were not loaded over max pressure. I have also seen over pressure loads with normal looking primers. The point is, unless you have a reference point with a given brand and type, "pressure signs" are just that ... an indication there was some pressure. As an example .... Federal primers dent very easily so they also crater or flatten at fairly low pressures. CCI primers take a good lick to dent and considerable pressure to "undent". As I recall, CCI standard primers will take about 30,000 psi to show signs of over pressure. If you are shooting a 38 Special (17k psi max) or other low pressure round, by the time you see honest signs of over pressure you probably blew the gun up.
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Old February 23rd, 2012, 06:39 PM   #10
 
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look a lot better than those from my wife's S&W Bodyguard
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Old February 23rd, 2012, 08:49 PM   #11
 
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Quote:
Originally Posted by Iowegan View Post
DIYautotech, The dents look pretty normal. As for pressure signs from primers ... it's just not a reliable indicator. I have seen many factory loads totally flatten primers and they were not loaded over max pressure. I have also seen over pressure loads with normal looking primers. The point is, unless you have a reference point with a given brand and type, "pressure signs" are just that ... an indication there was some pressure. As an example .... Federal primers dent very easily so they also crater or flatten at fairly low pressures. CCI primers take a good lick to dent and considerable pressure to "undent". As I recall, CCI standard primers will take about 30,000 psi to show signs of over pressure. If you are shooting a 38 Special (17k psi max) or other low pressure round, by the time you see honest signs of over pressure you probably blew the gun up.

Thanks alot for the in depth analysis, I truly appreciate it.
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