Same problem as the bombers, but worse. Not one of these planes had even had it's first flight even for several years after 1950, and many years after their first flight before they become operational. Most of these aircraft don't become operational till more than 10 years after 1950.
It had the range, despite the engines. The Tumanski R15 had a specific fuel consumption of 1.25 kg/kg(T)xh (dry thrust) which was much worse than even a typical late '40s or early 50s engine. Hence why the URSS kept the TU-128 (same Phazotron 'Smerch' radar, btw) flying up in the cold north till the Mig-31 became available in quantities.MiG-25 for me. Performance, armament, it even had the range provided the big honking engines ere not on afterburner all the time.