Wow, thanks for all the advice! I’ll check compression and swap back in the old stock spring to see if I’m just pushing the bbs too hard. If the old spring works I’ll either cut the new spring down a little or get some .43g bbs…..or most likely do both of those options. Considering I just got the ML hop up chamber (which did come with the ml arm with integrated nub) I’m not too keen on changing for the action army one unless this one proves to be my issue. If the compression test checks out and the spring change results with the same accuracy issues I’ll tear down and rebuild again. While doing that I may swap stock parts back in one at a time in a guess and check fashion. If/when I order the heavier bbs I’ll check into getting another bucking to test with.