d-rod project

[Monkeydad1969]

No, there not choked. But the rifling engages pretty good. I have some pellets I pushed thru. I will post the pics as soon as I get home.

Is it the barrel you shot the 31 gr bullets through?

No, the barrel that shot the 31 gr was the Disco .22, with the hawged out valve that Mike @ TKO did, with a heavy hammer spring, RVA, and I have the P-Rod block. Nothing but air flow. The barrel on my Carbine is the .25 that I hope to have the P-Rod valve for or I will see if I can get another hawged out Disco valve, or spend the cash for Cothran's valve.

[miksatx]

No, the barrel that shot the 31 gr was the Disco .22, with the hawged out valve that Mike @ TKO did, with a heavy hammer spring, RVA, and I have the P-Rod block. Nothing but air flow. The barrel on my Carbine is the .25 that I hope to have the P-Rod valve for or I will see if I can get another hawged out Disco valve, or spend the cash for Cothran's valve.

So how big of a tranfer port on that carbine tube? lol one thing about that cothran valve you don't need a heavy hammer spring.

[Monkeydad1969]

"So how big of a tranfer port on that carbine tube? lol one thing about that cothran valve you don't need a heavy hammer spring."

It a stock TP. I use vinyl tubing. Still on the fence on valves.

[miksatx]

here is a pic of the cothran valve output to the breech. also a pic of my .25 tp.

[Monkeydad1969]

Wow...huge exhaust port. That is a Cothran tube, right? So his valve's exhaust port is almost the same size as his tubes tp? What spring are you using for the hammer?

Here are the pellets I pushed thru my B&A .25 big bore barrel...sorry the pic isn't better. The rifling engages really well.

[screwwork]

1st, that is a sweet looking 25cal carbine
WOW, That is one heck of a transfer port
What dia is the barrel ported to for 0.25 transfer port and does it have any breach pellet loading issues?

[miksatx]

1st, that is a sweet looking 25cal carbine
WOW, That is one heck of a transfer port
What dia is the barrel ported to for 0.25 transfer port and does it have any breach pellet loading issues?

Sorry I made a mistake in the other post. The .25 I was talking about was the caliber not transfer port size sorry my mistake. My tranfer port is .180 still pretty big. what ever the barrel port size is for a 25 cal marauder? .125 maybe.

[Monkeydad1969]

Mistakes can be forgiven...by sending me your shooter. Lol.

[screwwork]

1st, that is a sweet looking 25cal carbine
WOW, That is one heck of a transfer port
What dia is the barrel ported to for 0.25 transfer port and does it have any breach pellet loading issues?

Sorry I made a mistake in the other post. The .25 I was talking about was the caliber not transfer port size sorry my mistake. My tranfer port is .180 still pretty big. what ever the barrel port size is for a 25 cal marauder? .125 maybe.

No problem

[Monkeydad1969]

So I detuned my Disco today to 12fpe. It is still hitting hard and very accurate. I want to do like the airgunners across the pond and hit rabbits at 50+yds with 12fpe. On a side note, my new to me QB78 and BNM barrel bands come in tomorrow. The QB78 is a future Corsair .357 candidate.