PA28 PILOT INADVERTENTLY ENTERS RESTRICTED AIRSPACE AT 1000 FT DURING A LIVE FIRE EXERCISE.

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NORMALLY BEFORE FLT I LAY OUT THE XCOUNTRY COURSE ON MY SECTIONALS TO OBSERVE ANY RESTR AIRSPACE; MOA'S; ETC. BECAUSE THE WX IN SOUTH CAROLINA WAS ONLY MVFR; I KNEW I'D HAVE TO FLY TOWARDS THE W FIRST BEFORE TURNING N WHEN THE CEILINGS AND VISIBILITY IMPROVED. SO; IT WASN'T POSSIBLE TO LAY OUT A COURSE BEFORE HAND. NO FLT PLAN WAS FILED AND I WAS NOT USING FLT FOLLOWING. I PICKED MY WAY W AND NORTHWARD TO STAY CLR OF THE CLOUDS AND THE HEAVIEST RAIN. AS I APCHED THE NC/SC STATE LINE ABOUT XA30; I NOTED A MIL AREA ON MY KING KX150 MOVING MAP GPS. IT WAS FORT BRAGG; NC. THE VARIOUS MOA'S WERE DEPICTED AND I DETERMINED TO FLY THROUGH THEM AT 1000 FT BECAUSE THE WX HAD JUST IMPROVED AND VISIBILITY (GREATER THAN 10 MI) AND CEILING (GREATER THAN 15000 FT) WERE QUITE GOOD ALTHOUGH I WAS STILL IN MODERATE CHOP. I DECIDED TO CLB TO 3500 FT IN ORDER TO IMPROVE THE RIDE AND HAD JUST STARTED THE CLB WHEN I HEARD A RPT WHICH SOUNDED LIKE SOMETHING IN THE AFT PART OF THE PLANE. WHILE WONDERING WHAT HAPPENED AND SEEING NOTHING IN THE CTLS OR ENG; I HEARD 2 MORE THAT I IDENTED AS ARTILLERY FIRE AND IMMEDIATELY SWEPT THE BOUNDARIES ON THE GPS SCREEN TO CONFIRM I WAS ONLY IN AN MOA. WHEN THE POINTER HIT THE BOUNDARY LINE; IT BECOMES WIDER AND BRIGHTER GIVING ALT LIMITS AND HIGHLIGHTING THE ENTIRE BOUNDARY PERIMETER. AT THAT POINT; I WAS ABLE TO SEE THAT I WAS IN A RESTR AREA; UNFORTUNATELY; I AM COLOR BLIND AND DID NOT DISCERN THE COLOR DIFFERENCES BTWN THE VARIOUS BOUNDARIES AROUND THIS MIL FACILITY IN THEIR UN-HIGHLIGHTED MODE. I IMMEDIATELY WENT TO A FULL PWR CLB AND TURNED L TO THE NEAREST BOUNDARY OF THE RESTR AIRSPACE. I WAS ALONE IN THE ACFT AND THERE WAS NOTHING ELSE TO RPT (OTHER THAN A GOOD SCARE!). I FLY AROUND THE PATUXENT NAS AREA REGULARLY AND KNOW THE RESTR AIRSPACES AROUND MY HOME BASE. I DON'T NEED COLOR PERCEPTION TO IDENT THE AIRSPACE ON MY GPS BECAUSE I KNOW GENERALLY WHERE THEY ARE. THIS IS ALSO TRUE WHEN I LAY OUT A XCOUNTRY FLT AND SEE WHERE THE RESTR AIRSPACES ARE BEFOREHAND. WHEN I SEE THEM ON MY GPS; I KNOW WHAT I'M LOOKING AT -- NOT USING COLOR TO IDENT THEM. THIS EXPERIENCE HAS TAUGHT ME THAT WHEN I'M 'OFF COURSE' OR OTHERWISE FLYING WHERE I'M UNFAMILIAR AND WHERE I HAVEN'T REFERRED TO MY SECTIONAL; I'LL HAVE TO BE MORE INQUISITIVE OF BOUNDARIES BY HIGHLIGHTING THEM ON THE GPS BEFORE ENTERING.