Big Bore Pistol Build

Building or modifying BB, Airsoft, and Pellet type of guns. Show off your custom designs, find tips and other discussion. Target practice only!
User avatar
jackssmirkingrevenge
Five Star General
Five Star General
Posts: 26179
Joined: Thu Mar 15, 2007 11:28 pm
Has thanked: 543 times
Been thanked: 319 times

Donating Members

Mon Jun 17, 2019 5:47 am

Not my own work but made by Bob Sterne, one of the current greats in the world of pre-charged pneumatics.

Image

With a .30 cal barrel 12.5 inches long and powered by 2 x 12g CO2 cartridges, it can do around 14 good shots (7 rounds in each magazine) with 44.75 grain JSB pellets at around 475 feet per second.

Image

Here's a 0.30" pellet compared to a more traditional 0.177", quite a dramatic difference and around 7 times heavier.

Image

Front piercing cap

Image

Breech with magazine removed

Image

Image

Image

[youtube][/youtube]

In action, it packs quite a punch and is pretty loud!

Image

Some recovered pellets.
hectmarr wrote:You have to make many weapons, because this field is long and short life