I am currently loading up some 140 tsx for my rem 7 mm mag using fed 215 primers and RL 22 . I have worked up from 66 grains and am now at 69 1/2 and getting only 3181,with no presure signs. I would like to know where presure signs begin , knowing that rifles will vary , is any one getting close to 3400 , thanks for any help, John G