Recent content by Robo63

Here in NZ summer is approaching and it's time to start slaying pests with my formidable 56TH, home tuned it can reach out to the 70m mark, it leaves my 97 and 80 in the shade, yesterday was a good one, seven rabbits and a hare. jsb heavies, 177, tuned to optimum velocity for stable flight...

Hey Several months later and I stumbled on this topic once more so decided to update it! After a conversation with Mr Maccari via email, I've concluded that the ZRT kit for the 56TH is aimed at the .22 and will definitely not push the big 56TH piston to the velocities achieved by the vortek...

Read my entry , your spring compressor needs modifying to work with barrel ON the gun, otherwise you hit the problems that you have... 

Yes absolutely! Unfortunately you've made the spring compressor to work with the barrel removed, When I tune the 80, which I have done many many times, remove everything from the rear end first! No spring pressure, then break the barrel before removing the bolt, On reassembly fit the shims...

Hi It wasn't a Hector tune I followed, but rather the fps he had recommended in a previous post I came across after doing a search. I tuned the 56 myself, as well as my 80 and 97 using parts from factory oem, vortek, custom Air seals, and vortek

Hi All, Has anyone got a 56 177 with the Maccari ZRT kit installed? If so what is the velocity with JSB EXACT Heavy pellets? The reason for the question is that I have just installed a Maccari deluxe kit in my HW80, it has transformed the gun to a very accurate easy to cock, and very smooth...