Tuning BullBoss Hammer Spring

[Chopper61]

Hey all, hope my post is in the right category. I have a ,25 BullBoss. I got some mods to it on a better baffling, a Wolf Suppresser it’s very accurate with the H+N Barracuda in 30.86 gr I’m shooting. I’m wondering if any one has experimented with the spring in the exhaust port? I only have found 1 video so far, on this subject and not to much information what so ever. I’m curious to see if different springs and tension what difference it would make? Say the same spring but in SS, or even brass would make? Maybe a less tension spring or heavier one what difference that would make?

 

[KatoKevin454]

as for the Hammer spring, I use the stock one and just adjust it to the fps I want to shoot at, I have a regulator in mine and with the spring adjustment I get 850 fps and around 25 shots per fill, you can experiment and see if you can find a better spring combo....? 

 

[Chopper61]

Wow 850 FPS? What grain you using? I like the 31 gr. Not really to light not to heavy.

 

[Mrshosted]

google bob's mod hatson at44, you'll find your answers your looking for there

 

[HARLEY01]

I have tried different lengths and strengths...the original with simple hammer adjustments seems to be the best for efficiency