Remington's decision to commercialize the M1917 Enfield action to their Model 30, later 720, then the 7XX series was the mistake they made decades ago. They did decide to button rifle barrels in the 1950's and those coupled with a cheap receiver were the rage in benchrest. Their sporter barrels were the most accurate ones on the USA market. Bent recoil lugs, poor triggers & safeties, failing extractors and round receivers twisting loose from epoxy bedding aside, they out sold and had more of a following than their competitor; Winchester. They sold actions and barreled actions for low prices and were therefore popular with custom rifle and benchrest folks.
Winchester's line started with commercializing the M1903A3 action (a Mauser 98 spin-off) into their Model 54 and later the 70. Extremely reliable, nothing broke, expensive actions (near 3 times as stiff as the Remington's) to make but worth it in the long run. Competitors liked them for those reasons but chose good aftermarket barrels for accuracy. Too bad their broach rifled barrels were so-so in the accuracy department. Even their hammer forged ones later were nothing to write home about. But Winchester new that and had Western Cartridge Company make larger diameter 30 caliber match bullets to shoot more accurate in their oversize factory bores. The hunting ammo sold was not all that accurate in them nor were aftermarket bullets exept for Lapua's .3092" diameter ones. Well made but expensive to do so meant they had to cut corners on barrels to make a profit to stay competitive against Remington. Winchester never sold actions alone, but they did make a couple dozen solid bottom single-shot ones for the US Army Marksmanship Team. That almost killed them in the 1960's when the USA military chose the Remington for their new sniper rifle.
I don't know when Remington switched to hammer forged barrels. Cheap to make but accuracy is average.