D93, I have considered this option. However, there are problems. Generally handloads have to be worked at and without a rifle to do so with all I can do is give them an untested load. This probably would result in either an under velocity or inaccurate load.

No, you are incorrect here. If you pick a load from a reputable reloading manual than the rifle will be regulated to that load and shoot great. It is only when you try and match a load to an already regulated rifle that you have to tweak and experiment.

Your only concern may be velocity but a good manual is pretty accurate if followed.