For me it wasn`t so much about the electronic gadgets, scopes, bullets etc, I`m talking well before the 80`s, but what made my rifles so inconsistent in shooting decent groups, so I could count on hitting what I aimed at. Targets like woodchucks and crows, with my 250-3000. Bedding of the action/barrel was one key. Learned by my mistakes, what worked and what didn`t. Learned a flier or poor groups weren`t always caused by my handloads, but a poor bedding platform in the rifle I was using. Learned about glass bedding, free floating barrels, then to free floated stress free glass/pillar bedding. All my wood stocked rifles were "fixed", and shot well, and I fixed a lot of friends rifles along the way.
I only have a couple of rifles now in wood...every thing else is composite, with the "Bedding Block". Soooooo much simpler to get to shoot. And I don`t worry about mucking up my nice Walnut should I get rained or snowed on.

Yea, I do use the other gadgets too.