Ruger Old Army spring kit

I love Treso's ROA nipples. They have a thinner squish zone so the hammer puts more pressure on the priming compound and the smaller flashhole means less powder fouling on the hammer and hammer channel.
On these guns, if too much fouling builds up in the slot the hammer falls through, it slows down the hammer blow enough to cause misfires.

Reduced tension springs are popular with the SASS shooters who want to be able to cycle the action as fast as possible. A lot of them cut coils off the spring to achieve this, if overdone, you get a revolver that only functions with the softest primers.
It sounds like that Wolff spring is a reduced tension spring meant for these guys.

The Ruger hammer spring is kind of marginal in my opinion. If the gun is clean and the caps are fully seated on the nipples, it fires reliably but a little fouling in the hammer port and caps not fully seated and you get failures to fire. Also make sure you hold the revolver in a way that does not have your thumb rubbing on the hammer. That can reduce the hammer blow enough to give you a failure to fire.
 
robhof

Does your gun have the factory grips? One of mine had after market grips and the grip screw was contacting the hammer spring and making the hammer throw light. I liked the grips so I ground down the grip screw where it met the spring and had no more problems. With one side off, check how close the grip screw is to the spring.
 
robhof-
Good point, thanks for that.
My grips are not stock, they are faux bone/antler.
Unfortunetly, I tested mine with the grips removed, so that takes care of the screw interference problem. Wish it was as simple as that.:(
 
Would shimming the hammerspring mess with the timing of the gun?
Click to expand...

No, it shouldn't. The only issue may be the spring becoming coil bound before full cock.

Timing has more to do with the fit and sizing of the sear, hand, and other lock internal parts.
 
Updte 2.0

Wow, fast shipping from The Possibles Shop!
The Treso nipples showed up today.
I installed them in the cylinder and fired 18 CCI #11 caps, only one FTF, and thats my fault for not cleaning the nipples well enough.
Havent had a chance to actually shoot it, but the caps firing on the first hammer strike indicate that all is well.
I still believe that the hammer spring is a weak point in this ROA. It really does not seem to have the power of my other percussion revolvers.
This is only my fourth percussion revolver, so Im learning.
Thanks to all who provided info.
I will let you all know how she fires after I get to the range.
 
You're gonna love the lower rate of lockwork powder fouling due to the smaller flash holes in those Treso nipples.
I really like the Treso nipples in my ROA. That aluminum bronze alloy is also very hard and holds up to years of use without flattening out or deforming. I use Treso's in my long guns also.
 
B.L.E.-
The flash holes are tiny. The edges of the nipples were the caps seat are very sharp. These Treso nipples are excellent. This is my first time using Treso nipples. I believe that in the future I will always spend a little more for the reliability and quality of Treso. I will also be purchasing Treso nips for my 1851's, 1858, and .54 smooth bore.
Any problems with the ROA after this are for a gunsmith.
Thanks once again B.L.E., and to the other members who assisted with their knowledge.
 
weak roa hammer spring

wolf does offer xtra power hammer springs or did at one time ck midway or brownells or contact wollf directly
 
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