There an SF story called “Hawk among the Sparrows” which is a similar premise - a modern military jet goes back in time to the First World War.
It’s interesting because there’s a lot of unforseen problems using the modern weapon in the past, one of which the airspeed is so fast the weapons are kind of pointless.
Guns of the South is another. South African radicals time travel back to the Civil War and outfit the Southern Armies with AKs and all kinds of other goodies...
IIRC, there was a Time Tunnel episode where some 60’s era army guys went back to Roman times.