You really can't beat a Ruger M77 for value. They are tremendously well made (from an engineering standpoint, Their fit and finish could be better). But they work and they come in calibers suitable for everything under the sun. If you are set on the .375 H&H caliber, A Winchester M70 or a CZ 550 is the way to go. If you want a reliable well made push feed for $600-$700, try to find an older Winchester M70 from the 80's. I had one, sold it and bought the new CRF M70, then bought an additional push feed M70 because, for beating around the Adirondacks looking for bear, there really isn't a better rifle. They are pretty sweet rifles and there isn't a thing wrong with them. The bolts are slick as can be, they have a sako style extractor that produces a solid purchase on the rim of the cartridge and they are accurate to boot!
This brings me to CRF vs. PF. It is 99.9% hypothetical bull... Yes.... If I harshly cycle a well made PF while whirling madly in a circle, doing a headstand with "Brand New Key" by Melanie playing in the background... It may fail. If you don't load them to max (Which is really not necessary for 99% of all cartridges) there would never be an extraction issue with the huge tapered case of a .375. I dare say that my push feed Winchester would all but tear the rim off the case before the extractor failed. Sure, CRF is hypothetically more reliable. But in practicality, a well made push feed functions just fine. I mean, almost every semi auto and automatic rifle used by every major military has been push feed for the last 50 years and they seem to work just fine. The only caveat is that some of their handguns are CRF. Combat is a much harsher environment than even Professional hunters are dealing with and with far more risk to life and limb (not to offend any PHs on here, but as far as I see, those are the facts) and almost universally, soldiers are issued tremendously reliable push feed weapons that function in conditions where a $17,000 Rigby CRF would give up the ghost almost immediately. Just my honest opinion.