New Vulcan P.O.I keeps changing?
:tag: bullfrog…. did you crono it? If not that’s the first place I’d start.
All Replies
Viewing 12 replies - 1 through 12 (of 12 total)
A PCP – a GOOD Pcp – is much more time consuming to build and has loads of more parts than a good PB rifle.
They wouldn’t be as expensive if we didn’t buy them. They would have to run a sale or reduce the price.
Sent from my Z30 using Tapatalk
I think the problem with the latest bullpup airguns is that they are freaking expensive, then it is freaking difficult to meet the expectations set high.
if it was a 150-200$ thing it would be OK.
If it costed half the price I would get 2 in different calibers. Looking at my serial number is is less than 50, there are not many guns sold apparently. which is a shame the price must be prohibitive for some.
I´m willing to bet the velocity differs. He needs to play with the HSTA in small increments after he has verified that he´s at the target speed , which is 282-285 mps (you do the damn math)with 16gr JSB´s .
you have to clamp it down to rule out the shooter, and repeat the test, show us some clamped down groups. the vice/table must be solid.
is it moving left and right or up an down? and by how much
I have had a gun which was super consistent power output wise, but it would just not group.
Yep, I rhink a lot of us have a stripped screw of one kind or another :rofl:
I held the allenkey seated firmly and verticle and tapped on lightly a few times and finally got it to move.
Hoot: replaced all his with phillips head screws and Zonk bought a package of screws. I think this is the picture Zonk posted:
You remone 4 screws, 2 in eaxh side of the rear upper cover. The screws go theough the cocking the rod, through a black spacer and into the brass breech block.
Guykuo and I each found them somewhat loose. We also noticed wear of the brass and removed it out the rear by unscrewing the plastic plug. I used a light smear of moly grease on mine after cleaning. You will have to re-insert that spacer from the rear also. The screws in mine measured shorter than what the manual says they should be so someday I’ll replace them.
A couple have reported Breech Block screws a bit loose. That could cause failure to latch the hammer.
Also I don’t care fore the looks of the .25 factory hammer spring de-twanger. If that piece of translucent tube were a little to long or cocked a little it might prevent full movement of the cocking lever.
Just my fuxing opinion 
Tadpole…..Just keep shooting your Vulcan, give it a 500 to 1000 round breakin before sending it back. BUT, you really need a crono to see if it’s dropping in FPS between shots.
No I don’t have one yet but that is the plan. I may run up to MIdway and grab one this week.
Get the Pro Crono made in the USA….NOT that piece of shit one made in Canada…
Did Tony test fire your gun before shipping? If so he should have caught it.
Viewing 12 replies - 1 through 12 (of 12 total)
- You must be logged in to reply to this topic.
The biggest most challenging thing manufacturing wise would be the breach block. Most of the other parts can be easily done with a cnc mill and lathe. I agree with ville they have a lot more to them than pbs.
Sent from my Z30 using Tapatalk