Blazer has a similar rifle design only the scope/ Optics stay with the barrel and it is a strait pull bolt that can go from 223 to 375H&H.
The Sig bolt action rifle is/ was similar for a lot less money that went from 308 Family to the Win belted mags (7mm Mag, 300 Win and I think they were working on 338 Win Mag) with a barrel, mag and bolt face change. The down side to it was the scope stayed with the gun.
But with all of the barrel swap bolt action rifles you have a long action or magnum action. The Blazer is able to take mag shells and as you see in the Mauser 03 the magazine is a lot longer than either case and the idea of a short rifle is to have a short light action to go with it. Why not have a 30-06 if you need to work the bolt all the way back to 30-06 lenghts.
For the same 2 grand + you could get a CZ 527, Rem 700, Ruger 77 in .223 rifle and two short action American bolts (Ruger, Remington, Savage) and then set up one as a short open woods rifle, one as a open plains big game rifle and set up the CZ for varmints to medium game if we want to stay in just two calibers of 223 and 308. We could add a larger round like 300 Win (MAG or Short) 338 Win or other large game rifle.
Giving you a three gun battery to cover any and all hunting as well as secondary rifles to take someone else with you or have a spare if you break something.
I really like the Blazer rifle and all the gadgets that go with it, but as you add more componets and complexity you add to the Mr. Murphy factor and if I was able to hunt every weekend it would not be a problem. But I get limited time to hunt and I do nto want to be out in the middle of somewhere to find I have the rifle set up for 223 in the bolt and mag but have the 308 barrel on it
. Same reason I have tape on my rifle cases with the model and Caliber of the rifle (I have the same cases for all of my rifles) and grab the rifle I do not have ammo for.