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Sellier & Bellot Primers Too hard to ignite reliably?

#1 User is offline   Hi-Power Jack 

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Posted 15 July 2009 - 04:01 PM

While waiting for my Wolf primers from PV
(Just saw the note, so I'm hoping my 20,000
come in next week:) - I bought 5,000 S & B
primers.

Just tried 18 of them in developing a 9mm
major load with HS6 powder and 115 gr MG
JHP's.

Nine (one-half) of the rounds did NOT go Bang
the first time - they all went Bang the second
time. I've Never had that happen with any
WW primers.

Since I have 5000 of these beauties, wondering
if I can get a more powerful hammer spring?

Is that safe, advisable in an STI TruBor? Would
it make the primers go bang?

Would I have to replace the spring when I went
back to the Wolf primers?

Thanks,

Jack

#2 User is offline   Steve J 

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Posted 15 July 2009 - 04:09 PM

Either a stronger hammer spring or seat the primers better.
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#3 User is offline   GTOSHootr 

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Posted 15 July 2009 - 05:07 PM

I was going to post a question as to whether people have had the same experience with the S&Bs. I tried 100 of them in Supercomp and had 4 not go off. Much better than you experienced but ruled them out in my book for match use, they'll be for practice only. Mine were seated deep on my 1050 and my mainspring is light (16# or 17#?).
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#4 User is offline   Duane Thomas 

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Posted 15 July 2009 - 05:24 PM

The S&B primers are notoriously hard. Okay for guns running full-power hammer springs, not so good for a gun running a tuned action.
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#5 User is offline   Steve J 

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Posted 15 July 2009 - 05:28 PM

They probably need at least a 18 or 19# mainspring.
Steve J (Anchovies, Marmite and other savory things)

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#6 User is offline   Hi-Power Jack 

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Posted 16 July 2009 - 04:34 AM

View PostSteve J, on Jul 15 2009, 08:28 PM, said:

They probably need at least a 18 or 19# mainspring.


If I used a 19# mainspring, would that work okay with
standard (WW or Wolf) primers, or would I have to
re-replace the springs again?

Jack

#7 User is offline   Steve J 

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Posted 16 July 2009 - 06:16 AM

View PostHi-Power Jack, on Jul 16 2009, 06:34 AM, said:

View PostSteve J, on Jul 15 2009, 08:28 PM, said:

They probably need at least a 18 or 19# mainspring.


If I used a 19# mainspring, would that work okay with
standard (WW or Wolf) primers, or would I have to
re-replace the springs again?

Jack


I use an 18# spring with a low mass hammer and have 100% solid primer strikes with even the hardest. There are other variables at play that may make your situation different, probably won't, but it's something to me aware of. Unreliable ignition can also be influenced by a worn or broken firing pin, ultra low mass hammer, sticky, rough, dirty mainspring housing tunnel.
Steve J (Anchovies, Marmite and other savory things)

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#8 User is offline   Hi-Power Jack 

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Posted 16 July 2009 - 09:56 AM

I use an 18# spring with a low mass hammer and have 100% solid primer strikes with even the hardest. There are other variables at play that may make your situation different, probably won't, but it's something to me aware of. Unreliable ignition can also be influenced by a worn or broken firing pin, ultra low mass hammer, sticky, rough, dirty mainspring housing tunnel.
[/quote]

My gun is clean, so it can't be the housing tunnel, and a gunsmith just checked it over so it shouldn't be a worn or broken firing pin -
the hammer is stock STI TruBor hammer, and works well with my WW primers (Never a misfire).

I'll check into an 18 lb spring, and see if that works.

Thanks for the help.

Jack

#9 User is offline   Hannu 

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Posted 14 November 2009 - 12:56 AM

Where you buy S&B primers in USA ?
SPM was my favorite 9mm Major-primer - no problems (about 20k used) with extended firing pin, DK hammer + 17 lbs spring.

#10 User is offline   fritzthemoose 

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Posted 14 November 2009 - 02:17 PM

View PostHi-Power Jack, on Jul 16 2009, 12:01 AM, said:

While waiting for my Wolf primers from PV
(Just saw the note, so I'm hoping my 20,000
come in next week:) - I bought 5,000 S & B
primers.

Just tried 18 of them in developing a 9mm
major load with HS6 powder and 115 gr MG
JHP's.

Nine (one-half) of the rounds did NOT go Bang
the first time - they all went Bang the second
time. I've Never had that happen with any
WW primers.

Since I have 5000 of these beauties, wondering
if I can get a more powerful hammer spring?

Is that safe, advisable in an STI TruBor? Would
it make the primers go bang?

Would I have to replace the spring when I went
back to the Wolf primers?

Thanks,

Jack



I have a Glock with a tuned trigger that will not ignite Muron primers for the most part. As far as I know Muron are sold in the US as Wolf. On the other hand I never had any problem with S&B factory rounds. Asuming the the primers in the factory rounds and the one sold as primers are same/similar they should work better than the Wolf
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#11 User is offline   Quigley 

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Posted 23 November 2009 - 09:51 AM

I switch back between Winchester and S&B small pistol primers (9 Major) with my Bedel blaster with zero problems...

I can't tell the difference...
Quigley

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