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-   -   Do these Primer Strikes look good to you? (http://rugerforum.net/ruger-single-action/48677-do-these-primer-strikes-look-good-you.html)

DIYautotech February 23rd, 2012 04:21 PM

Do these Primer Strikes look good to you?
 
1 Attachment(s)
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!

gwnorth February 23rd, 2012 04:36 PM

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?

Nutty Ned February 23rd, 2012 04:44 PM

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.

terry_p February 23rd, 2012 05:03 PM

Without having them in hand it's a little tough but looks like pressure signs to me with the ridges. What are the loads??

ADP3 February 23rd, 2012 06:35 PM

They look like good solid hits to me with no piercing, cratering or excessive flattening.

Best Regards,
ADP3

TomP5 February 23rd, 2012 06:58 PM

Pics can be a little hard to tell, as Terry said. But I would agree with ADP3:
Quote:

Originally Posted by ADP3 (Post 571092)
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.

TomP5 February 23rd, 2012 07:02 PM

Oh, and what are your loads, as Terry asked?

Tom in Arizona February 23rd, 2012 07:06 PM

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.

Iowegan February 23rd, 2012 07:08 PM

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.

Spike12 February 23rd, 2012 07:39 PM

look a lot better than those from my wife's S&W Bodyguard

DIYautotech February 23rd, 2012 09:49 PM

Quote:

Originally Posted by Iowegan (Post 571146)
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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