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This is a discussion on gp-100 within the Ruger Double Action forums, part of the Pistol & Revolver Forum category; good monring, did the gp-100 come with a hammer spur when first introduced? how long has this model been made? thks for your replies. TOMD ...


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Old February 2nd, 2020, 05:40 AM   #1
 
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gp-100

good monring, did the gp-100 come with a hammer spur when first introduced? how long has this model been made? thks for your replies. TOMD 1943



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Old February 2nd, 2020, 07:20 AM   #2
 
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good monring, did the gp-100 come with a hammer spur when first introduced? how long has this model been made? thks for your replies. TOMD 1943
1. no

2. since 1985
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Old February 2nd, 2020, 01:21 PM   #3
 
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good monring, did the gp-100 come with a hammer spur when first introduced? how long has this model been made? thks for your replies. TOMD 1943
What do you mean by "hammer spur"? According to Ruger, the first regular production GP100 was S.N. 170-00001 in 1986. I have a GP100 that is about 8000 more than that listed number, and it was purchased in 1986.
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Old February 2nd, 2020, 01:35 PM   #4
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Here's a picture of a GP100 hammer. The spur has been there since the gun first went into production. There were DAO spurless models made years later.

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Old February 4th, 2020, 08:35 AM   #5
 
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lowegan, the spur that I was asking was the spur that was on the front of the hammer thaat struck the primer that firer the shell in the cyl. when I was 14 or 15 yrs old I shot a revlover that my uncle had in 1959 or 1960. I though it was a ruger but it might not have been. that was a long time ago. seeing the gp100 was first made in 1985 it was not a gp100 but it was a ruger revolver just don't know what one. tks for the replys TOMD1943
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Old February 4th, 2020, 11:35 AM   #6
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TOMD1943, If you look at the labeled photo in my above post, the thing you are referring to is called a "top step", but it doesn't work the way you described. All Ruger double action revolvers have always had a hammer with a "top step" to accommodate a transfer bar. This includes the Security-Six & Speed-Six family, SP101, GP100, Redhawk, and Super Redhawk. Ruger New model Single Action revolvers also have a top step but Old Model SAs without the transfer bar modification do not.

Here's how it works: When the hammer thrusts forward under spring tension, the top step strikes the frame at the same time as the front surface of the hammer strikes the transfer bar. The transfer bar is then pushed forward and hits the firing pin, which causes the cartridge to fire. The "top step" has a dual purpose …. it limits the energy applied to the firing pin, plus it holds the hammer back far enough for the trigger to reset after the cartridge is fired. If you use your thumb to slowly lower the hammer while pulling the trigger, you can actually see how the parts move.
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Old February 4th, 2020, 12:15 PM   #7
 
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I wonder if the revolver was a S&W? Did the hammer look like the one in the picture below:



On the older S&W revolvers the forward protrusion is the firing pin.
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Old February 5th, 2020, 06:50 AM   #8
 
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ROVER, yes it did. maybe it was NOT a ruger revolver after all. like I said it was a very long time ago 1959 or 1960. I thought it had ruger on the gun. owell guess I was mistaken on that. thanks for your picture and your reply. TOMD1943
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Old February 5th, 2020, 06:54 AM   #9
 
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ROVER, yes it looked just like your picture. I guess it was NOT a ruger revolver after all. It was a very long time ago. thanks for your reply. TOMD1943
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Old February 5th, 2020, 07:25 AM   #10
 
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Tom, that's actually the firing pin on the hammer on the Smith and ,no, Ruger never had one mounted on the hammer. Ruger always, as far as I know, used a transfer bar system with a frame mounted firing pin like the newer Smith do now.
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