It's been my findings that a 125gr cast LRN is nicely accurate for me and I haven't bothered to try a heavier 147 grain bullet. In
theory, BoogieMan is correct in that a bullet with a longer bearing surface has the potential for better accuracy.
What I found was that the 125 grain LRN ran so well that it made sense to stick with it...which gives me a bit lighter bullet (than 147's) and that should (in theory also!
) save me a little dough when it comes to buying my slugs...since there's less lead there.
I know that MANY folks love the accuracy and less shock/blast/flip when using a subsonic 147 grain bullet load in 9mm...my friend loves the 147 grain Montana Gold bullet and a small charge of Titegroup, but I get along
really well with my 125's and push them with Universal.
I'm using the Dardas bullet:
http://dardascastbullets.com/
Great bullets, great service, great people.