Eeeeyup. Want to see a short film of me? Merging level with an F4U-1C, he Immels 3K behind me, reverse completely and runs me down till he kills one engine at 900 with several pings of the 20mm. I was going straight to begin with and I kept going straight after the merge so no E loss on my part at all. He finished me off at 700 or so off my "6".
IMO, the 1C has enough ammo that many folks will spray and pray for that lucky, golden, long range 20mm hit. They get them quite often too. If it does not shoot you down outright it will cripple and make it easier for them to finish you off.
-Westy