Impact trigger - Timney Trigger Impact AR Trigger

I purchased one of these a year ago or so and I t thought they were advertised as 3lbs on the package. Now the advertising says 3-4 lbs and in the the same advertising it says 3lbs. The first one I bought ended up breaking at 2.75lbs average according to my lyman digital trigger gauge. The next one I bought averaged at 4lbs. I bought two more and replaced the 4lb with one of these new ones, it averaged just slightly over 3lb pull. I haven’t tested the fourth trigger, but I hope it is close to 3lbs like two of the three I have tested. They do break amazingly. I was replacing RRA two stage match triggers that broke close to four. Even the 4lb Impact trigger I took out , breaks better than the RRA triggers I replaced. Hopefully once I get more rounds down range or some dry firing, they will smooth out even more.