Calvin, it is good to see the Canadian humor is still alive and well. I'll bet you all had a blast down there.

 There is no correct place to hold. The aiming square was used on days the mirage was so bad the circles disappeared for large parts of a 7 minute time frame.
 Personally I have done it several ways but always seemed to do best when I had my point of aim close to the impact. When conditions are tough and you have to pick or hold for conditions, it was always easier to calculate or estimate this way. They always said that you should not shoot out your aim point, but if your group is that bad it won't help much anymore.

Dan, I do not remember the exact dimensions that several gunsmiths use but I do know that the dimensions you have in your chamber match what I have in a few of my barrels. They gave me the same grief and other barrels that had been done with a larger reamer had none of these issues. I to did not like going to upper level loads unless i had to and preferred some slow burning 8208 powder, but that did not help with the click and tight brass, it was the chamber.

 Dan, without having the measurements on the dies and the chamber it is hard to diagnose properly. It does sound like the chamber is to tight for the brass. It is a common misconception that the die sizes the brass all the way down, but it cannot size the part of the casing that is solid brass at the base. Under high pressure loads the base can slowly swell a few thou and if it swells to the point it is tight in the chamber you cannot fix this except to polish out the chamber area to get a little relief.
 When you have a tight piece of brass, measure the base before and after resizing and it does not change. If you measure just above the base before and after resizing, you will see a difference about 1 thou give or take a half thou.
 It is also a good idea to check the new brass when you get it in and check against your chamber dim., the chamber should be 2 -3 thou bigger or it is to tight for your new brass.

Congratulations Calvin, as they say, at 100 yards you just have to be close to the leaders. It will be won or lost at 200 yards and you did it!

The daisy actually slow the response and while they may look cool they do not do much except on real windy days if you paint one petal black. The help is minimal in my experience.

Congratulations Tony and Wayne, to bad it happened on the same day as now Tony's minute of fame was short lived.

A remington will work fine for accuracy work as long as their is no flaws in the action that put a bind in the firing system that causes inconsistent ignition and the action is relatively straight in all the key points.
 A 2 oz trigger will definitely improve your ability to be able to shoot "free recoil".
 Try custom bullets made on quality jackets by a knowledgeable bullet maker.
 The heat shield can be as simple as a piece of target paper taped to the barrel or a piece of venetian blind, keep it simple and light as it is used on weigh in. It s only purpose is to deflect mirage from a warm barrel from interfering with your view of the target through the scope.
 The square on the target was sometimes used when the mirage was so heavy that the rings on the target disappear for large amounts of time.As long as you start your group using the square for aiming on these days, you can finish your group when the circles disappear for 2 minutes. This is not a regular thing but I have seen it happen.
 The 6br is a very accurate cartridge and I would suggest trying the 65 or 68 grain bullets. Maybe Dan O or Jefferson can help you with getting some.
 You have to shoot over flags to know which way the wind (breeze) is blowing as it does move bullets no matter how fast they are going. Even strips of surveyors tape will tell you lots.
John

Bill, I am doing the math 42 + 32=74. Take that away and you still have enough room for your loading trailer. How did you sleep ?
 So the army guys with the subs didn't stop to frisk you when they seen you walking around with your gun in your hand?

  Congratulations Bill on your 2 gun!!