Recent content by JackHughs

Have you done a deadhead test? Sometimes the problem is downstream from the compressor. For example, I once had a similar experience filling a tank. The tank bleed screw was not fully seated and would develop a very slow leak at any pressure over 200 Bar. Since then, I've always been careful...

You ask some really interesting questions. Let me try to answer them. 1. My rifle has one internal regulator, a 300 cc high pressure bottle, and a 156 cc regulated plenum. 2. The 300 cc bottle is tethered to an external regulator. 3. The internal regulator is a HUMA which is a particular pain...

This is how I currently run the gun - except that I set the external reg above 200 Bar to help assure quick recovery on the internal reg. I would like to have a finer and faster means to adjust the regulated plenum. The external reg provides that functionality but I don't want to do anything...

This is a late reply but it's taken quite a bit of tinkering with this rifle to be able to post a meaningful response. The HUMA regulator in my Panthera does, in fact follow bottle pressure. I adjusted the reg to 115 Bar with the bottle pressurized to 230 Bar. I then shot the bottle down to...

The .22 700 Panthera is coming along as a dedicated, tethered bench gun at 100 yards. I'm just about ready to try it at 200. The turning point in getting this rifle to shoot was the replacement of A12 (valvetube end) with new part No. FX21004. The new part does not have the two clamp screws...

I've been working steadily to improve the performance on my .22 700 Panthera. Based on some very good advise received from this Forum, I switched to 40 grain Altaros King slugs and 40.1 grain ACE slugs and lowered the reg pressure. The the attached target was shot at 100 yards with both the...

One can only hope. I'm going to call and see if there is a wait list. JackHughs

If the price difference is not too great, I prefer to buy something I can grow into rather than something that will quickly become obsolete. If you may be filling tanks in the future, the best value portable compressor available at this time is the GX CS4. JackHughs

Many thanks to CanMike for posting his reg and hammer settings. I followed his advise and my heretofore clunky .22 700 Panthera came to life. I have the reg set at 125 bar because I wanted to start a bit low and work up to 130 bar. However, the rifle was performing so well, I just left it at...

The valve you have appears to be a "Jubilee." I have two tanks with this valve and both valves are excellent. You might want to consider saving the cost of a replacement valve and just doing deadhead tests to determine the pressure in your tank. JackHughs

The issues you describe at 150 Bar are the same issues I'm having at 145 Bar. I will lower the reg pressure to 130 bar but this gun has a Huma reg. I do need to de-gas first - not a problem. You're also spot-on regarding running on the plateau. For my rifle, I have to run close to the plateau...

I have a .22 700 Panthera so your post is of particular interest. I've been running the reg on my rifle at 145 Bar. When I shoot the 40 grain Altaros slugs at 930 fps, I get very good but inconsistent results at 100 yards. I think that the hammer strike needed to achieve 930 fps at 145 Bar is...

Randolph front and Edgewood rear - tethered at 230 Bar. JackHughs

I have an unmodified .22 700 mm Impact Mk II. At 135 Bar reg and 925 fps, It prefers JSB 25.39 pellets but only certain lots shoot really well. JackHughs

Congratulations - from a .22 700 Panthera owner. JackHughs