I have finally got my hands on some 135 Noslers, and want to work up to nuclear velocities. I plan to start around 10g and work my way up, just to be safe. BUT, I have read conflicting reports on the maximum load of IMR 800x. 12.7g vs 14.5g Both of these seem to produce similar velocities. Has the formula of 800x recently changed? I know that the 14.5g load is no longer being published. Wanna kill these ads? We can help!