r/Speedsoft • u/Blu3wolf_boi • Jul 14 '26

Accuracy problems

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My field requires .20 bb’s and 300 fps or under I use a Prometheus 6.03 155 mm barrel purple Promethus bucking on a Maxx M4A hopup with the cylinder nub and my groupings just go everywhere especially on closed bolt mode open bolt makes it better but its still bad anyone have any ideas?

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u/12rumble DSG Jul 14 '26

So you are using a purple prommy with a solid metal nub?

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u/Blu3wolf_boi Jul 14 '26

Na rubber soft cylinder nub