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I've checked the Archives and YouTube. There are many posts regarding the original Buck Rail Tac Kit for the original Avenger but so far no information on the Tac Kit 2.0 version. Has anyone here installed version 2.0? If so, how does it perform? JackHughs

I have a HUMA regulator set to 140 BAR in my .22 700 Panthera. I shoot this rifle tethered to a Nuvair external regulator. Up to now, I've set the external reg to 250 BAR because the HUMA internal reg seems to recover faster with high bottle pressure. The question is: Does the internal HUMA...

I'm getting old and feeble so carrying around filled 9 liter tanks is becoming an unpleasant chore. Tuxing sells a three liter tank with three valve options - all at the same price. Two of these are single gauge valves. The third has two gauges and a direct to tank fill fitting that is...

A friend recently bought a Benjamin Kratos from AR. He also purchased a new Donny moderator and the proper adapter to mount the moderator to the Kratos shroud. He mounted a NIghtforce scope and we went out to the local range to sight-in yesterday. With the moderator installed, it was...

Good morning. If you have a CS4, would you please post the nameplate data for the external power supply. Thanks JackHughs

Taking a break from my Impact and Panthera, I recently bought a refurbished .22 Kratos from Airgun Revisions. I've always liked the looks of these rifles and saw this as an opportunity to try out a well-reviewed, unregulated rifle at a very attractive price. I did a full power test of several...

During the past few days, I participated in a parallax discussion on another thread in this forum. That discussion stimulated a bit of internet research which uncovered some very interesting results. I've competed in various shooting disciplines over the years with a wide variety of...

I tested my .22 700 Panthera at an NRL22 practice event today. Everything went well except that the amount of force need to cock the rifle while in position made staying on target difficult. So I have two questions. First, is the cocking force proportional to hammer preload and, if so would...

My one-month old .22 700 cm Panthera has developed a serious leak where the valve rod (20924) passes through the valve holder (20925). I've taken the rifle apart and visually inspected the o-ring in the valve holder (15016) and the valve rod. The o-ring looks OK and the valve rod does not...

I recently de-gassed my relatively new Panthera in order to adjust the regulator. The initial condition was de-cocked with the breech closed. I first removed the bottle, then adjusted the regulator up de-gas the plenum. So far, so good. I then adjusted the regulator down and reinstalled the...

I rebuilt an F8 Shoebox about three years ago and it has given great service in topping off tanks ever since. Sadly, it failed a few days ago. I think I have another rebuild kit squirreled away somewhere and I will try to resurrect the F8 once again. Since I need a compressor right now, I...

Good morning, I'm trying to learn more about the new Panthera and would appreciate comments from current Panthera owners on the data I've compiled to date. My rifle is a 700 cm in .22. To get started, I tested the rifle to find the muzzle velocity plateau for several regulator settings and a...

Good morning, I've owned a .22 FX Impact Mark II 700 for several years and just took delivery of a .22 FX Panthera 700 last Friday. Prior to purchasing the Panthera, I read a good number of related posts on this forum and watched YouTube videos until my eyes crossed. Even so, the Panthera has...