PA31 PLT AT VIS CTAF ANNOUNCED INTENTION TO CROSS THE RWY. AS THE PLT STARTED TO ENTER THE RWY; HE LOOKED AGAIN AND SAW ACFT ABOUT TO LAND.

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AS I TAXIED TO THE HOLD SHORT LINE MIDFIELD DOWN THE RWY; I CALLED INTO THE BLIND ON UNICOM TO ADVISE MY INTENTIONS. I STOPPED; LOOKED L AND R; THEN TAXIED ACROSS THE HOLD SHORT LINE ONTO THE RWY. MY INTENTION WAS TO CROSS THE RWY. AS THE FIRST 1/3 OF MY PLANE WAS ON THE RWY; I GLANCED L AND R AGAIN AND SAW AN ACFT RAPIDLY APCHING ME FROM THE R. I IMMEDIATELY APPLIED BRAKES; AND THE PLANE WENT IN FRONT OF ME; R TO L. I CALLED HIM ON THE RADIO AND ASKED HIM IF HE HEARD ME CALL MY INTENTION TO TAXI MIDFIELD ACROSS THE RWY. HIS RESPONSE WAS SOMETHING TO THE EFFECT; 'I WAS BUSY LNDG AND DIDN'T PAY ATTN.' THE FACT IS; WE BOTH BROKE THE CHAIN OF SAFETY. IN THE FUTURE; I WILL STOP FOR 20 SECONDS OR SO TO LOOK FOR ANY APPARENT MOTION AT EITHER END OF THE RWY. I SUSPECT THIS ACFT MUST HAVE JUST BEEN TOUCHING DOWN WHEN I LOOKED; PUTTING HIM BELOW THE HORIZON. HIS AIRPLANE LOOKED VERY SMALL (LANCAIR 320?) AND WAS PAINTED BROWN. HE DIDN'T HAVE ANY LIGHTS ON. THE LANCAIR PLT SAID HE CALLED BASE; BUT NOT FINAL. I PROBABLY WOULD HAVE HEARD HIM CALL FINAL. WATCH OUT AT UNCTLED ARPTS!