QB78 based .30 PCP
So, as most of you guys know, I’m a glutton for punishment… I would like to build a QB78 based PCP, like a corsair. But this one would be a .30 using a TJ airgun .30 barrel. Now here’s a question: how long of a barrel should I use? Of course, the length of the reservoir is relative to the barrel. I’m looking for an efficient barrel length. Mostly for longer range target shooting, though I would like to take small game (woodchuck at the largest) if the opportunity presents itself. Target number of shots would be around 5-6 full power shots. Not sure of a target fpe, but seeing as how FX’s .30 is 75 fpe, I think 75+ is where I should target it. Thoughts? Questions? Comments? Concerns?
All Replies
- You must be logged in to reply to this topic.

I’m not even building this one!! I wish I could delete the thread! I’m actually in the process of building a 7mm BAM 50! The B50 seemed like a better base rifle to start from. Also, I’m converting a Condor SS to a .30, plus I have a Dawson .30 being built… so no sense building ANOTHER .30!!