Converting CO2 tank for AIR???

I emptied my 24oz CO2 tank this morning, and filled it with air to 2000 psi from my scuba tank. I kept the CO2 valve and adapter on the tank and rifle. It shot just fine, and penetration, as measured per the AHDPS criteria showed that CO2 will cause a .22 pellet to penetrate approximately 1/4″ into a treated pine board. With a 2000 air psi fill in the CO2 tank, that pellet penetrated the same board approximately twice that depth. Resulting in a “NTB” rating on their chart.

The pellet, a Precision Max 14 gr., imported from China by Daisy, without regard to expense, fit loosely in the Walther barrel, and I personally wouldn’t trust it to shoot insects.

However, I noted the following facts:

1) The CO2 tank, stamped at max 1800 psi, with a 3000 psi burst disk, accepted the fill without any problem. The hydro test for this tank is likely 4k to 5k psi, so a 2000 psi fill, and I suspect a 2500 psi fill, should poise no undue risk to myself. However, others trying this will most certainly be killed, and I don’t suggest you come near this dangerous and ill-advised experiment!

2) I, personally, didn’t die during this test. In fact, I wasn’t even injured. Probably just dumb luck.

3) The Talon SS, 18″ .22 barrel, GTBJ shroud, performed silently, and flawlessly.

4) I used a K-valve connector attached to a coiled hose for the scuba tank, and a CO2 fill adapter for the bottle.

5) I will no longer use CO2 in this tank, as air is clearly the better performer.

6) My ABEE chrony indicated the pellet hit a designation of “PDG” on its chart. I can live with that. I can always use my Talon air tank for those instances when I need the full monty on velocity and impact.

NOTE: Lacking the above special equipment, knowledge, and balls, this foolhardy and dangerous experiment should NOT be repeated by the readers. I don’t want to get sued for stupidity. Mine or yours.

Anyone dumb enough to experiment with a PCP airgun, 🙄 certainly doesn’t exist on this forum. So I post my results for entertainment purposes only.

Regards,
Kindly ‘Ol Uncle Hoot