My .30 cal Shortie.
Wanted to try a .30 shortie, knowing with a short barrel the speed was going to be slower and louder. With a TJ .30 barrel cut to 12″ with a mod HW LDC AOL is 25″
So the speed at 140b is 700fps with 44g.
That’s 48fpe.
28 shots from a 250b fill.
The sound level about the same as the .25 cricket. Now test how she shoots. I tested this barrel before on the 9mm cricket that was grouping 1/2″” @50y. The key is how to hold this .30 shortie!
Here is my .30 probe that is make out Delrin–vary smooth and quiet to slide in and out.
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So the speed at 140b is 700fps with 44g. That’s 48fpe.
:hoot:
One can expect roughly 50 fps increase per inch of barrel. A 16″ barrel would bring your fps up to about 900 fps…or 90 fpe.
That’s worth the extra 4″ of length! It makes me wonder if the Vulcan could be converted to .30 caliber???
What would it cost to give this a try? Would the Vulcan valve be up to the job?
Hoot:
Hoot, I wanted to keep it short as possible to fit in my tennis racket case not 90fpe. its supper accurate at 130Y + can see the pellet vary clearly in flight, at 90fpe I can’t with my converted 9mm to .30 cricket.
I have 2 LW .30 barrel that I will make into a kit with my custom shroud/LDC for the shorty soon
If the VS don’t hold up I’ll make one that does
with all my testing an average of 20 to 25fps gain per inch on the shorty