Would a 10/110 338 be a satisfactory basis (not perfect, just ok) for a switch barrel for other calibers, such as 300wm, 308, 7mm mag,6.5/284, 223.? I know the bolt head needs to be changed but will these smaller calibers work with the rest of the metal, i.e., the : magazine, and anything else I can't think of. If, as I suspect, we would need a different magazine for shorter calibers, are they readily available? If so, from whom? Thanks.