invest in good glass if needed , a cheap 3x9x40 with a large reticle isnt going to help groups, and a good trigger job or aftermarket trigger can sure go a long way in helping groups also,
i picked up a couple of cheap stainless savage axis xp combos in 6.5 creed just before xmas , finale cost 209.99 , they shot ok as is for hunting , right around that 1-1.25 moa area with reloads dialed in , took one and added a 6x24x50 vortex i had and added a accu trigger i had on a another savage, long story short , groups for that gun shrunk to well under 1 moa 5 shot groups with tuned reloads. would i go buy better glass for the other rifle, not sure , the stock junk 3x9 scope will still kill deer or elk out to 300. but it was a fun experiment just to see how much it improved a 210$ gun
Glass and triggers dont make a rifle any more accurate. They just help you interface with it to better reach its potential. Just depends what we are talking about here I guess.