Shade, I think I would do exactly what you have done. You're a good man.
Trouble is with these old gentlemen, there's not that many of them around and unfortunately, they don't last forever. ( So much to learn from them. )
All the best
What a wildcatter you are Shade. Anybody would be pleased with picking up another 200 fps.
I never thought of trying something like that when I had a standard 7x57. Now I have a 7x57 A1, I can't do it. Well done!