Rule 303
AH elite
Please be careful of what you write or how you write it. Several States here in Australia have recently passed laws limiting people to 4 or 5 rifles, total.The 375 is banded for alignment in a bolt-action rifle. The action in an express usually requires substantial 'bite' into the case for ejection/extraction., thus the substantial flange.
Some express use same cartridge as the bolt action, 30:06 for example. There is no need or demand to fit the #62 into #74. There are too many types of cartridges. Apart from romance and experimentation and filling older guns we could easily get down to 4.
I take it you mean down to 4 rifles for DG?