Gene - when it comes to Blake rifles, one shouldn't be too fussy. Of course, I want a .400, but mainly I want one with the detachable rotary magazine - preferably two of them . I think given the rotary magazine function of the Blake, it may be an off-topic rifle, but it sure is close. Be pretty neat if they had made it in .250-3000 but they were long gone before that cartridge came along. By the way, the schematics shown in your link are confusing as they show a tube-fed rifle. Maybe there were other versions of the Blake I was unaware of.
. I think given the rotary magazine function of the Blake, it may be an off-topic rifle, but it sure is close. Be pretty neat if they had made it in .250-3000 but they were long gone before that cartridge came along. By the way, the schematics shown in your link are confusing as they show a tube-fed rifle. Maybe there were other versions of the Blake I was unaware of. 
