Hi Folk's, I recently purchased a S&W mdl 14-3 in pristine condition. I was loading some Sierra 158grn JSP over some Unique. In the Sierra Vol 5 load manual it shows 5.0 to 6.1 grns Unique with the accuracy load as 5.7 (850 fps)-Their test gun being a K-38.I loaded 50 of these. My Hornady manual shows 3.9-5.1 grns Unique for 800fps max with their 158 grn JHP. Nosler shows 3.8-4.8 grns w/746 fps max with their 158 grn JHP. I dont want to put stress on this old girl so might shoot these in my mdl. 19 or Blackhawk.Should I even be concerned? I appreciate any input-Dave