Crono help for classic RT

[tweter]

I cant get my classic RT to crono under 430fps ive got the velocity adj all the way in and i tryed backing it out but that didnt help either, the only thing I can think of is to replace the counter wound springs? anyone have any other ideas...

[ManInBlack]

Use an allen wrench to adjust the velocity thing counter-clockwise (out). also, make sure your tank is putting out decent pressure (800-1200psi).

[secretweaponevan]

I cant get my classic RT to crono under 430fps ive got the velocity adj all the way in and i tryed backing it out but that didnt help either, the only thing I can think of is to replace the counter wound springs? anyone have any other ideas...

Sounds like your regulator isn't regulating. This is most likely due to a leaking reg valve seat or a problem with the regulator valve pin assembly (I think, but I learn something new every day). Inspect them for damage, nicks or anything else wonky.

[tweter]

tried back the velocity adj all the way out to the oring seal and it only went to a higher fps..also i have a new reg piston and all new orings

[MANN]

what is your tank output pressure? bolt is installed? what spring is installed. Is everything lubed up(IE did you use some oil in your asa?

[tweter]

tank pressure is 750ish all lubed up with gold cup stock bolt with a rebuild kit spring

[MANN]

tank pressure is 750ish all lubed up with gold cup stock bolt with a rebuild kit spring

I dont know what the stock bolt is, or the rebuild kit spring is. lvl7 with gold spring?

[tweter]

I dont know what the stock bolt is, or the rebuild kit spring is. lvl7 with gold spring?

its the gold spring from the RT oring rebuild kit and yes I think its a lvl 7 if thats what came with the RT from the factory