I just noticed on my stagger feed 111 that the magazine is not the full length of the bolt. It is chambered in 30-06 so I assumed it would have the 300 Win Mag OAL. You can see in the attached picture that there is an approximately .350 inch spacer in front of the bolt. Does this remove when I take off the magazine? Is there a longer magazine meant for the 30-06 diameter cartridges? And lastly when I buy a magnum length magazine will this block come with the old mag or is it part of the reciever?

Thanks
Josh