IF... you were going to build a custom DG rifle with quality wood full length mannlicher stock and a 20" barrel.... .375 and up of course and no crazy wildcats that need brass forming or custom bullets....
What caliber would it be and why??? I have several ideas but want to hear from you all....
Are you wanting to build the rifle? Or are you talking about having a custom DG rifle built for you?
If I were having one built, for me there is no question.. I'd go 404J..
However if youre talking about building one yourself.. I think it really depends on your individual skills and what tools you have available to you..
I set out to build my own dedicated DG rifle about a year ago.. Ultimately I went with .416 Taylor.. that may or may not be appealing to you.. its a wildcat.. but not really a crazy one.. properly head stamped brass is available and there is a ton of load data out there.. as well as a handful of companies that produce ammo for it..
For me it was all about my own skill limitations and what tools I had on hand in the shop as well as what action I had available to me.. I was originally going to go the 458 WM route.. but when I found a really nice 416 Taylor barrel on gunbroker cheap.. and then did some research on 416 T ballistics and also found some information about how it typically feeds easier than 458 WM without having to monkey with the feed ramp or do a lot of polishing, etc. when using a LR Mauser action.. I was sold.. and went with the 416 Taylor..
Going 404J would have required me to make modifications to both the magazine and the action itself on a LR Mauser to make things work.. I didnt think I had the skills.. and didnt have the jigs and other things I would have needed to do the job properly by myself..
With the 416 Taylor (or a 458 WM) getting a dedicated DG rifled action ready to go was as simple as screwing on a new barrel, finishing out the short chamber, and opening up the bolt face a little bit.. and I was done.. after that it was just a matter of finding the stock I wanted, installing a better trigger, installing a more suitable safety, etc (all things I would have needed to do no matter which caliber I went with)..
It was actually a really easy process from start to finish..