I am enjoying the info on this test . . THANKS!

On the question of older ammo vs new in terms of speed, I'm sure some of the forum members could tell you the date, but there was a change from using "pressure BBLs" to real guns for vel figures somewhere near the 80's. Posted vel of many factory rounds went down without any actual change in the factory load. As I recal, loading manuals made the same change close to the same time.

Doc