Why the narrow trigger on my '85 model ROA?

[Tallbald]

The beautiful 1985 (or so) blued ROA I recently lucked into at a show has a trigger about half the width of the triggers on my three stainless ROA's (1993, 1983 and 1977). I had never dealt much with the blued versions because I have "rusty hands" as some of us toolmakers say that have been known to cause blemishes to form quickly on blued or polished carbon steel surfaces (I almost hate to handle a blued gun because of this). Anyway, why the trigger difference? This suprised me. I thought SS and blued versions were identical except for material. Thanks, Don.

 

[arcticap]

In 1985 the trigger slot on the blue frames was widened due to their being changed to steel. Prior to that year the blue frames were made from aluminum.
But I don't know if the trigger width is related to that or not.

http://www.gunblast.com/Hamm_Ruger-SA-GripFrames.htm

 

[junkman_01]

My ROA was made in 1982 and has an aluminium trigger guard and a skinny trigger.

 

[MCgunner]

Mine's narry, 85ish. My old late 70s Stainless was wide. I'm guessing, yes, the steel trigger guard made a difference.