A point not often mentioned about cross-bolts is that where no factory cross-bolts are fitted you might like to try to fit one of Recknagel’s square section cross-bolts at the front of the action. These need to be fitted very carefully. In flat bottom receivers (like 98’s) the square section is supposed to fit up against the recoil lug and action flat, providing more support than a round section cross-bolt. The old military 98’s had something similar.