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Upgrading a Brocock Bantam

Started by kthomas, April 12, 2020, 08:57:20 AM

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My first airgun was a Brocock Bantam in .25, one with a Beech wood stock and 400cc metal bottle. It was recommended to me by a friend who's really into airguns. The thing was a lot of fun to shoot, but it was such an air hog, that I couldn't get more then ~12-15 shots on high power before velocity started dissipating. Once I get a long Taipan Veteran in .22, that airgun has remained in the closet until very recently.

I was at the same friends house the other day, and we were shooting .25's on his property. I forgot how much fun a .25 is, they shoot much differently then a .22, and this left me with wanting a .25. well hold on a second, I had to tell myself, I have a .25 in the closet. The shot count sucks, but perhaps I can fix that. With a little research online, I ended up ordering a 580CC 4500 psi Omega carbon fiber bottle, as well as an Altaros regulator. This could be a fun project.

With these two additions I'm definitely expecting better air consumption, and perhaps some higher velocities. While I'm installing the aftermarket bottle and regulator, is there anything else I should be looking to tweak, or any potential pitfalls I should be aware of? I have never tinkered with an airgun before, beyond adjusting a trigger.


Look at videos, read, and learn about your air gun before starting work.  Buy a Chronograph and record your results
for your gun before starting work.   Be safe and drain out ALL the air pressure before working on your gun.  If you
know anyone in your area who has worked on airguns get their input.  Have fun and stay safe.


Go to YouTube, and paste in Brocock Bantam. You'll find at least three videos on tuning.

I have a Hill EC-3000 compressor. If you're a fellow Guild member, and you pass through Roswell, NM, I'll fill your tank as a courtesy (4,250 PSI limit).