Depends on what you are calling full-length sizing, and neck-sizing.
I probably use what some call neck sizing, but in reality it's "partially-full length" sizing.
I size the neck and the body of the case in a full-length die, and only "kiss" the shoulder with the die. This allows free chambering but with minimal dimension changes from fired round head-spacing. This usually gives accuracy equal to just neck sizing and dosen't compromise reliablity. Using the die screwed all the way down to touch the shell holder which I call "full length sizing" will cause excessive headspace with several of my firearms, and will result in brass that is ruined within 2-3 loadings. (.30/30 and .22Hornet, and .35Rem to mention several....) However, I DO fully size .45/70 brass as with the essentially straight size cases, it head-spaces on the rim, so fully sizing maximizes ease of chambering/feeding.
Also, it depends which rifle and game being hunted. I do the above with all "big game" cartridges and loads. With varmint loads/cartridges, I usually use a Lee Collet type die which is IN FACT a true neck sizer. It only sizes the necks. After 2-3 loadings it can be necessary to run the cases back through a full-length die to get reasonably easy chambering. /
Either way, I seldom have to shoot more than once when hunting, but, you just never know when a follow-up shot may be necessary.