New .30 cal Barrels for JSB Pellets

[FRANK]

No I don't regret it at all.
I wanted to go .177 and 9mm but .30 is like 9mm so I would love it.
I'm sure that QbBob could spit them out at 800fps with good tuning.

so if your willing to make me a bolt probe and barrel that drops right in
QbBob well give me a price I'm in.

[rsterne]

Sean's, the guy to talk to for custom work, particularly on this project....

Bob

[FRANK]

Sean PM to make me a kit and a deal.

[SeanMP]

Hi Frank

Thanks for the interest. Referring back to Bob's original post.

We just ordered the mandrel. Barrels are probably months away. Once the bugs are worked out and there is something to deliver we'll post it up.

Cheers

[FRANK]

No problem I'm in no hurry. I can wait. maybe I get 2 by then one for my Disco and one for QbBob. muhahahahahah

[Dukemeister]

I knew you'd regret taking that .25 cal Cannon apart and selling the barrel....

Bob

I am the beneficiary of Frank's "regret", it's the circle of life. Your .25 barrel has a good home and resides in a finely tuned non-PAL QB78D running on HPA regulated at 850psi. It makes single ragged holes at 14 yards and puts a huge blob in the duct seal. I have shot Bob's non-PAL 9mm 2260/Disco conversion and it was a hoot... very large holes at 25 yards! I know that .3 cal or 9mm cal in non-PAL flavour is not efficient, but what the heck.. I'm drawn to big pellets.

[rsterne]

I can see some non-PAL development work will eventually take place using these barrels.... particularly for the 2240 pistol....

Bob

[FRANK]

I am the beneficiary of Frank's "regret", it's the circle of life. Your .25 barrel has a good home and resides in a finely tuned non-PAL QB78D running on HPA regulated at 850psi. It makes single ragged holes at 14 yards and puts a huge blob in the duct seal. I have shot Bob's non-PAL 9mm 2260/Disco conversion and it was a hoot... very large holes at 25 yards! I know that .3 cal or 9mm cal in non-PAL flavour is not efficient, but what the heck.. I'm drawn to big pellets.

Nope no regret, happy it has a good home :P
But I wanted something ajustable for FT and had a perfect shot string and that was it. I instaled a LW barrel on in .177 with a new high volume bold probe,
and I want to go bigger not that I need just want.

[rsterne]

Update on these barrels.... The mandrel is made, and the barrels will be produced to the following specs:

.30 cal Airgun barrel intended for the new JSB 46 & 50 gr. pellets
Made from CrMoly steel, hammer forged
Groove 0.300"
Land 0.294"
Twist 1 turn in 26"
6 Lands
OD 0.500" (0.590" also available)
Standard length 25" (12.5" for pistols)

What they are NOT: They are not intended to use 0.308" cast bullets, nor are they intended to use any bullet over 0.48" in length, as those will not fit into a modified .25 cal MRod magazine, and may not stabilize in the 26" twist....

Sean will be placing an initial order as soon as we can collect pre-orders and determine a price.... For THIS ORDER ONLY, and only for BARREL BLANKS with no machining, we will accept orders for lengths other than the above, but be advised there may be a small surcharge from the manufacturer for barrels over 29" long....

I will be contacting those who have expressed an interest in pre-ordering barrel blanks.... Anyone else who wants to get in on this initial order, either for blanks or for machined barrels.... please contact me ASAP.... Sean will be finalizing the list within a week, getting prices, and then contacting you to arrange payment.... Sean will be offering all machining services (chambering, porting, and crowning, and can even add a choke) at extra cost if you desire, please ask him for details directly....

Bob

[rsterne]

First results of a target, shot with JSB pellets at 921 fps average (filled for each group to 2650 psi) from the new barrels.... Not my work, a chap from Alberta, using a 29" barrel on a modded Condor at 12X....



The grid and the orange circles are 1", targets shot every 5 m from 50 m to 90 m (which is 100 yards).... I think you can safely say we did our homework on bore size and twist rate....

Bob