Thanks for all the replies fellas!!! I didn't think this thread would generate as many responses as it did!!
it could definitely be me, I am not trying in any way to get out from under that. As posted, I am the common denominator and cannot deny it. At the same time I will say that not exactly all of my rifles wont shoot...I have a Cooper 243 that will touch bullets at 100. I have a 700 VSSF 223 that will also do it, but only one certain load and one bullet, switch any component and its gone. The Cooper is bone stock, the 700 has a trigger. Here are a few facts that have sort of steered me this way:
I cannot get any caliber{tried 4} Nosler Partitions to shoot better than 2" @ 100 out of anything.
Years ago I had a Savage 110V that would put any bullet and load into a dime @ 100. I haven't seen a 223 group 1 inch since without a lot of special time consuming reloading practices. The old Savage got ammo that was resized, trimmed if needed, any SR primer, any 55 grain or less weight bullet and any published load data powder charge. It was shot at a cardboard box while leaning over the hood of my truck.
The one I have today gets pockets uniformed, BR4 primers, flash hole deburred, annealed, outside neck turned, trimmed to length, one certain powder, one certain bullet, bullet seated with an L.E.Wilson straight seater, etc. and as stated, change or deviate one thing and it looks like I am shooting buckshot.
That leaning off the truck hood has now turned to a full bench with Sinclair rest and Protektor bags...the cardboard box is a system of 4x4's and 2x4's planted in the ground so the wind cant move it.
It's kind of the same story with some of my other rifles...I have an old WWI 1903 with pits in the bore. It will shoot better off the bench with factory ammo than my 70 with a heavy Krieger barrel. 25 years ago, I shot a 1/2" group at 200 yards with the Model 70.
I am not afraid to admit I have changed, but it sure don't seem like it's all me. I use 1.25+ reading glasses. I cant see up close as good as I once did, but I don't qualify for Lasik's yet. I have also noticed a lot more parallax in today's scopes. I never used to much worry about it because although I knew what it was, I could never find it. Yesterday, at my range, I could adjust in parallax to every scope I shot. Two of them I had trouble getting it out of. I had to move the zoom ring back off of the stop at highest power to get the parallax out. I am starting to think everyone wants to get rich, but no one wants to give you your moneys worth!!! Thanks again for the replies so far!!!