Hatsan 22 caliber bullboss bullpup qe

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thirdbase06 said:
I'm new to the Pcp World. Just got a Hatsan BullBoss qe bullpup 22 caliber. Also got a Hatsan Regulator on the way.
Any information help on best settings. Says it comes factory setting at 125bar.
I'm new to the website so don't think I can reply to any messages yet.
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I have the at44 which uses the same tube/valve. I ordered the reg too very recently, still waiting on delivery. However i chronograph two entire fill cycles last night. From 200-121bar the velocities really don't fluctuate much. I have the 230cc tube on and I got 32 shots from 963-986fp. The first 3 shots climb up to 980 then you get a good 28-29 shots between 965-980 for the most part, shot 33 dropped to 960s, then each shot dropped a good 9-12fps for a few shots, then drops off a cliff into the void. I'm shooting a .177 and getting these numbers with 10.03 JSB MK3 K.O. slugs. I think for me with .177 125bar is just right. Delivering 21 foot pounds from a 10gr .177.

What numbers are you getting from .22?
 
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RabbitofCaerbannog said:
I have the at44 which uses the same tube/valve. I ordered the reg too very recently, still waiting on delivery. However i chronograph two entire fill cycles last night. From 200-121bar the velocities really don't fluctuate much. I have the 230cc tube on and I got 32 shots from 963-986fp. The first 3 shots climb up to 980 then you get a good 28-29 shots between 965-980 for the most part, shot 33 dropped to 960s, then each shot dropped a good 9-12fps for a few shots, then drops off a cliff into the void. I'm shooting a .177 and getting these numbers with 10.03 JSB MK3 K.O. slugs. I think for me with .177 125bar is just right. Delivering 21 foot pounds from a 10gr .177.

What numbers are you getting from .22?
Click to expand...
Thanks for replying i haven't gotten my regulator yet or put on the chronograph. As soon as I do I'll send you my numbers.
Thank you again for your very helpful information
 
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RabbitofCaerbannog said:
I have the at44 which uses the same tube/valve. I ordered the reg too very recently, still waiting on delivery. However i chronograph two entire fill cycles last night. From 200-121bar the velocities really don't fluctuate much. I have the 230cc tube on and I got 32 shots from 963-986fp. The first 3 shots climb up to 980 then you get a good 28-29 shots between 965-980 for the most part, shot 33 dropped to 960s, then each shot dropped a good 9-12fps for a few shots, then drops off a cliff into the void. I'm shooting a .177 and getting these numbers with 10.03 JSB MK3 K.O. slugs. I think for me with .177 125bar is just right. Delivering 21 foot pounds from a 10gr .177.

What numbers are you getting from .22?
Click to expand...
I'm trying to also find and order a BullBoss clip holder but I can't seem to find a way to PM this member. Any idea
 
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