My worries are well founded.
After posting up this chart, I received PMs from guys wanting to "get as close to 400fps as possible on an otherewise stock gun" and they picked out all of the springs that were right at, just barely under or just slightly above the 400fps mark.
Quote:
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Originally Posted by TNK
hehe, i was just kind going over the line, but thanks a lot for the chart, because i had an M120S, and i guess thats why my nozzles were brking, they were shooting around 415-430
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The power of your spring should not be causing your nozzle to break. You have another issue at hand. Check your cylinder head. The shaft may be crooked.