Thanks,

The 300 Win mag would add a lot on the top end, if I [ever] needed it.
On the other hand, I am probably a lot more likely to need the lighter loads.
It has been a very long time since I was set up for reloading, and I just don't remember the finer points.
Unfortunately, I no longer have access to any manuals, etc., etc.
Seems to me that there was some concern with "overbore" capacity that made it difficult to work up light loads in some high performance cartridges.
That may have been mostly ... or even only ...in the hyper 22s [220 Swift etc.,] ;
... I just can't remember how and when all of that kicked in.
It may be that there just isn't that much difference between the case design and the characteristics of 300 Win mag and 30-06 cartridges.
With the price of 300 Win mag factory ammo, a fella would certainly want to reload.
Also, it is really hard to find 300 Win mag factory ammo in anything less than 165 grain bullets.
Just wonder if it would be possible to duplicate the 110 and 125 grain loads that are available in 30-06 factory ammo.
? ? ?