I had a Model Four ( fancy 7400) in .270 that shot just fine, sold it to my aunt down in SE Texas, still going strong. I had a Model 750 carbine in 35 Whelan a year or so ago, it was a genuine shooter! never had a problem, just never hunted with it so sold it. Back in the 80s, I bought a 742 (30.06) from my Uncle and it was a jammomatic. I fought that sucker for a few years, sold it to my dad ( who never hunted with it, and I still used it some) best factory loads was the first Federal Premiums with the 165 Sierra GameKing. it would do about 4" at 100, which was fine as I always shot deer/hogs at under 75! ha. One shot too, never had to shoot something twice. I bought it back from my dad and sold it back to my uncle, who still has it. I later bought a new 742 in .308 that was just perfect, but I was into bow hunting for about 6 yrs and sold it. My BIL still uses his 742 in .308 for past 38 yrs!
My favorite is the early Belgium made BARS. I did have one in 7mm Mag in '73 that would jam, and since it was too heavy for what I wanted, I traded it off for a brand new 870 Mag and a little Marlin '94 in .44mag. Now, that little .44 mag was the fastest handling woods rifle I ever had, before or since. But, I wanted the Long Range Shot back then went to bolt guns ( a Ruger 77 .280) and now I currently have one semi, a Belgium BAR in .270 that shoots like a good bolt gun. I don't care for the side bolt release levers on the new ones, but that's just me.
I would say if you could find a good used 7400 for a decent price, go for it. I really was impressed with that Mod 750, but they can be expensive. "Usually", any semi that uses the shorter .308/7mm08/243 etc, will be more reliable. And really, for deer hogs that's plenty of firepower/flat shooting calibers.
If you want to shoot a lot, I too suggest either a good Garand or M1A, but hey, I knew a guy who used a 742 in 6mm Remington who NEVER cleaned it and shot at least 800 rds through it just out in the field or hunting. He sold it when he thought it was "shot out' to a mutual friend of ours. My friend cleaned the bore (took awhile too!) and the rest of it and it went back to shooting under 2"! "You pays your money and you takes your chances". ha. Good luck to you Pard.