Re: .243 AI is this claim true?
Andy, I recently picked up a 243AI with a 3 groove 28" barrel.
Your answer is this guys set-up no.
My set-up very close. [img]/ubbthreads/images/graemlins/shocked.gif[/img]
With the same 70 gr berger I'm running 3770 fps. With a scope hieght of 1.8 inches and a bc of .283.
+1 @ 100
0 @ 230
-.7 @ 280
-1.1 @ 300
Very close to what he claimed but not quite.
My disclaimer is other than my listed velocity none of this has been proven at the range, just a quick calc. at JMB
I will say my limited range time with this rifle and load has impressed me with it's flattness. I am far from settling on a load yet. My most recent testing has me running a 85 grain Speer SPBT @ 3520 fps. This bullet is suposed to have a bc of .404 according to Speer. But with only limited testing on a less than perfect day, it still needs work.