Was able to test some 127 LRX with the 6.5 PRC, 22" bbl.
Used Reloder 23, ADG Brass and BR2 primers.
53.5
And
54.0
Groups were just about 1/2" avg 3030fps for both loads.
ES and SD were horrible. New bbl and new brass possibly?
I like low SD's, too.
But, 1/2" groups at 3K fps, critters will never know...
DF