I decided to take my own advice and check the fit of my own gun. I'm always harping on to others about the importance of gun fit.
Anyway a trip to the pattern plate was required until I realised I don't have a pattern plate! I didn't fancy driving miles to my nearest shooting grounds, setting up the plate and getting covered in white paint.
So, I got myself a roll of cheap paper here - http://www.discountpackaging.ie/prod...ategory_ID=127 borrowed some of the wife's clothes pegs and set off to my local grey crow pen. This is made from a steel frame covered in wire mesh and is located in a nice quite area. It's empty at the minute so it made an ideal place to set up my plate. I tore off about 1 metre of the paper and pegged it up to the side of the pen. With a black marker I drew a clay in the middle with a cross through it. I stepped back about 20 yards and with the tightest chokes in the gun, let rip with two shots. Now you must keep the gun moving when testing a shotgun. It's not like a rifle where you are stationary and aim it. You start above your mark and point the gun. Then slowly move it down to about 2 feet under the mark. Then slowly bring the gun up and shoot when you meet the mark. Repeat for the top barrell without taking the gun down from your shoulder.
On checking my first two shots I found I was high and slightly to the right. This meant my comb was too high and there was too much cast. I adjusted the comb back in to reduce the cast and tried again. Bang in the centre but still too high. I dropped the comb by about 2mm and tried again. Perfect!
I had about 75% of the shot above the mark which is ok for a Trap gun. if it was a sporter, about 60% above and 40% below would be right. The beauty of using the roll of paper was I could put up a new target each time in a couple of seconds and the resulting pattern was simple to read. I've abbreviated the firing part here because I didn't want to keep repeating myself. I actually went through about 20 cartridges and 5 or 6 sheets of paper.
Anyway, the moral of the story is.......get your gun fitting right.