Trigger pull weights

[TA]

I did some pull checks with some of my revolvers. I was using a digital Lymans gauge that has a maximum measurement of 12 lbs.

MODEL - DA - SA

S&W 27 - 10 - 2.75

S&W 19 - 10+ - 3.5

S&W 29 - OVER - 3.9

S&W 57 - 11.9 - 3.75

S&W 629 - OVER - 3.5

Python - 11.5 - 3.5

I must admit, I was a little surprised. I really thought I would be getting lower weights than that. I suspect all factory springs and no trigger jobs. I have not pulled the sideplates of my recent S&W aquisitions to see if they need cleaned up. Weights are the best way to check pull, but the digital scale gets you in the ballpark, for sure. The "OVER" reading seemed right there, so I think they are just a tad over the 12 lb. limit.

[TMan]

I'm impressed with your 27's SA number.

I used to use the RCBS spring type gauge, but I too bought the Lyman digital one. However, they tell you to pull straight back, which would be parallel to the barrel. Some guns have trigger pulls that aren't straight back. I've found that by varying the angle of the gauge I do get different reading. The Bond Arms Snake Slayer had a big difference between pulling it straight back vs at an angle.

Incidentally, I measured the K31 today (they make 7.5x55 Swiss snap-caps), and it is breaking at 2lb 1oz avg. Lots of creep, but it is smooth, no gritty feeling, and you never know when it is going to break. However, I think there is something wrong with it because I've dry-fired a couple of other ones, and they felt like two-stage triggers. I'm really pleased with mine. Think I'll shoot it tomorrow!!!

["DoubleAction"]

TA; Those might be average weights for the double action strokes but I think they should be much lower. I've measured three different Pythons that stack at around 8 lbs, and follow through at around 8 1/2 to 9 lbs. That 27, being a combat revolver, should have a non stacking double action stroke close to 8 lbs average. I don't pay much mind to the single action breaks on my double action revolvers because I seldom manually cock the hammer. The weights I use is good down to grams, I got them from a place I once worked which filled quart and pint containers from automatic filling machines.