Tuning Impact MK2 and Monster Redesign tune...

[Vana2]

I'd like to setup my Impact for the. 22 caliber JSB Monster Redesigns in preparation for trying KnockOuts later on.

Does anyone have some velocities and reg pressures that they would recommend? 

I'm shooting an Impact MK2 with a 700mm barrel (I have both the pellet and slugs barrels).

Any experience shooting the Redesigns through the "slug barrel A"?

Thanks in advance! 

 

[cahil_2]

I have a mk2 700. I have the PP with a pin probe and huma dual port. Reg is at 100. I have an A liner and shoot .217 knockouts at 950. I tried a superior heavy liner and it was not as accurate as the A liner. Also, the redesigns have almost the same poi as the slugs. 

 

[Reidy]

I do not have an FX but I have an FX slug liner that fits my Hatsan BT65SB. I was getting good results with JSB 25.39 monsters at 50 yards and around 940fps. I was getting about 1/2" groups. 

 

[Vana2]

Thanks cahil_2!

.217 @ 950 sounds good, will start with that. Bonus that the POIs are close - was hoping they would be. 

Cheers! 

 

[Vana2]

Thanks Reidy!

Good to hear that the Redesigns are happy at those kinds of velocities. Was concerned that I would need a tune for pellets and one for slugs, think that there is a good chance I'll get away with one tune for both. 

Cheers!