Tuning Looking For A Little More "OOMPH!"

[pecci]

Seriously considering buying a Beeman (CO2) QB78D-22 ... if the "Deluxe" ever becomes available again! I want to ''jack-it-up'' a bit so I can use it for ... Uhm, jackrabbits & cottontails. Anyway, I thought that the mod below may help by adding an extra 100fps.

My question is ... if I buy a new "QB" will the o-rings in the Archer tune-kit below, do any more, performance-wise, than the "new" stock o-rings in the kit?

https://www.airgunsofarizona.com/parts/archer-airguns-xp-tune-kit-for-qb-78-.22/#tab-1

 

[JadedC]

Idk about the o rings specifically, however adding the smaller probe will add around around 100 FPS depending on the pellet. Mine used to put out roughly 8 fpe and with the kit it now puts out 12. The kit allowed me to stretch the range from 25 yards to 50. 

 

[pecci]

Idk about the o rings specifically, however adding the smaller probe will add around around 100 FPS depending on the pellet. Mine used to put out roughly 8 fpe and with the kit it now puts out 12. The kit allowed me to stretch the range from 25 yards to 50.

Do you use it on rabbit or hare?

 

[JadedC]

Idk about the o rings specifically, however adding the smaller probe will add around around 100 FPS depending on the pellet. Mine used to put out roughly 8 fpe and with the kit it now puts out 12. The kit allowed me to stretch the range from 25 yards to 50. D

Do you use it on rabbit or hare?

I have taken cottontails out to 30 yards and pigeons out to 50. Both require require roughly the same fpe (~6) to take humanely with a well placed shot. With the mod you have enough at 50 yards. My qb can group slightly bigger than an inch at 50 so it’s accurate enough too. If you have any questions you can pm me.