Have never used them myself but have spoke with people who have..All said roughly the same info about them as yourself.Really top notch primer..As for the magnums one fella Bruce uses them in his 300 Win..

Also have noticed those BR2 primers have quite a following with Alaska hunters..fwiw..Most I've had spoken with on hunting forums really like all the CCI primers but the BR2 seems to be their mainstay..

Thanks for your responce 35..