Yes no problem, this is done ALL the time and with great success.
The root of the question I suppose is how well the bullet gets "guided" into the rifling as it leaves the case.
Well think of it this way...
How much clearance do you have between your cartridge neck and the chamber? If you run a tight neck and turn your brass, you can create a condition where the brass can actually guide the bullet into the rifling. That's like kinda the point of neck turning... right? (yes, there are other benefits too)
If you have a standard type chamber that is clear something like .008 to .012" in the neck, then you can't count on the brass to guide the bullet into the rifling at all can you. Even less so if you full length resize.
Then there's this handy trick... You chamber the barrel so there is what amounts to a sleeve just forward of the neck - basically in the "freebore". The free bore would be intentionally machined to a close slip fit to the bullet diameter. The idea here is that your brass don't mean squat in terms of bullet alignment. The chamber is designed to guide the bullet into the rifling. There was some ridiculous bench rest record set by a guy using this approach some time ago and he all but removed the cartridge neck. It may have been 0.050" long.
So why not leave the round long? You can increase your case capacity if your throat is long enough. The real question might be what is your freebore diameter?
The only real downside is that your bullets can fall out of the case a little more easily, but that's more of a neck tension issue.
Anyway some food for thought for you.
I was wondering if it was common practice or at all advisable to ever seat a bullet out far to the point that the bearing surface is not all the way into the neck? Let's say for a neck .300" long the bullet is only sat .200" into it.
I want to run 210VLD AND 230 OTM in my custom .300 Wm and would like to seat the 230 out as far as possible to maximize case capacity while still being able to seat the 210 safely.
