I bought a five-pack of Wolff springs and put one in one of my rifles last weekend. It looked like a nice spring and had good tension when I put it in. After cocking the hammer a few times, it seemed like it took a little less effort than the old H&R spring. I put a string on the hammer extension and pulled it with my fish scale, and it took about 8 lbs tension to cock the hammer, keeping the string at about a right angle to a line through the hammer extension and the pin the hammer pivots on. I took it back apart and put the H&R spring back in. Compared to the other Wolff springs, the slightly used Wolff showed noticeable setback, which according to the Wolff website can be expected, but was more than the H&R spring. In fact, I could remove the Wolff spring with my fingers, no needlenose pliers needed. With the H&R spring back in, I measured 9 pounds to cock the hammer.
These are advertised as extra power springs, but are they? They look identical to the H&R spring, same 0.064 diam wire, same number of turns, same legs. Based on the setback, the spring material doesn't seem to be any better. What are other's thoughts on these springs? Did I just get a bad batch? I sent them back to Dave at Wolff for a refund (partial probably), but he said of the thousands they've sold they've never had another complaint.
A side note, I did notice that with the Wolff spring the trigger pull was reduced from 2.75 lbs to 2.5 lbs, which I guess makes sense because you are working against a slightly weaker spring.
