I have a win 54 action and the bbl date is 1928 and its a 30-30. I once tried a canjar trigger in that action but after pulling the trigger the firing pin went as normal but the bolt could not be pulled back. However I once read an article about a converted 54 action that had the firing pin sear or cocking piece built up to model 70 specs. The model 70 cocking piece on my M70 match rifle has a long flat piece of metal that when in the fired position keeps pressure on the sear in the trigger. So at least this makes sense. Maybe one of the cocking pieces that brownell's sells for the model 70 could be fitted to a 54 striker assembly and tried out. By the way, surplus 1903 and 1903A3 striker tips can be used on the 54 firing pin if the old one is worn or bent. They are out there cheap enough. Hope this made sense. Frank