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I just now did a quick test of the new Hard Urethane 3/4 EMT shaft collars from shootingtargets7. Since I'm going to use my DIY collars on my KYL rack forever and don't really need the Urethane collars, I figured my test would be mostly to see if the Urethane collars had the same problem as the...

I just now received a pair of the new Hard Urethane 3/4 EMT shaft collars from shootingtargets7 -- literally just now opened the package. They are clearly not brittle like the previous PolyCarbonate collars I had. I haven't clamped the Hard Urethane collars onto my target yet, but I'll do that...

No problem Mark. This is hacker stuff. Even though they are cheap (5 of 'em for $6), there is still the labor. I have a feeling that a year from now I'll still be the only guy on the planet with shaft collars made from compression couplers. Fun stuff. stovepipe

I bought the KYL rimfire/airgun target rack from ShootingTargets7 recently -- I love 'em. Before I even had them put together, I started looking for some off-the-shelf steel shaft collars that would fit the 3/4 EMT. I figured steel would look cool and hold better too. BUT, the outside...

I applaud your good intensions. But I strongly advise that you totally abandon the idea. If a customer comes into your store and wants to get into shooting airguns, you help them do that. If you offer a military discount, then let the customer know that a discount exists for veterans and you...

Scotchmo, this is awesome. I didn't know a conversion could be done. I initially printed out the G1-based holdovers (sight-in at 55 yards) from 10 to 300 yards at 2-yard intervals. I'll do the same with this RA4 conversion and compare them. Most of my shooting is targets within 100 yards (I...

Thanks Scotchmo. I've been shooting NSA 54.5 grain slugs at 961 fps with my fx maverick 30 cal sniper for a while. I had to email NSA to find that they used the G1 profile to get the BC of 0.12. I have strelok pro and I just now checked and it does have the RA4 profile. The 54.5 gr slugs are...

Yes, and what's worse is that they print the BC on the box or in the description of the projectile they're selling and they typically never specify what drag model was used. stovepipe

Thanks for pointing out the "newer" drag models. Many of these I've never heard of. It's been a long time since I tried to get a ballistics program to agree with my dope. None of the existing drag laws in my ballistics programs at the time were a good match, so I gave up. I guess it's time...

RIGHT ON BROTHER ! ! ! Even though I didn't have anything to do with it and it wasn't MY problem, I actually feel an incredible amount of relief right now. Man, I'm going to get a beer -- it's not refridgerated, but I don't care. Excellent day ! ! ! stovepipe

Your statement "If the correct reference drag law is used, then a single value will be all that is needed at all speeds, this is the basic fundamental idea of the entire BC system of calculation." is entirely correct!!!! You bash everyone that says things like "the BC changes as the velocity...

I hate to say it, but it sounds like someone put some fairly (or totally) permanent gunk on the threads of the air guages. I hope I'm wrong. stovepipe

In this youtube video, Keith Gibson gives an overview of how he uses the Strelok Pro ballistics program. The important thing to get from this video is that he has to use MULTIPLE ballistic coefficients in order to get the program to closely match his real-world D.O.P.E. (data on previous...

I never had to pick bits of stuff out of the reg hole -- o-rings alway came out fully intact. But the x-rings were crushed to unrecognizable bits under the crappy air pressure gauges that came with my 30 cal mav sniper over 3 years ago. I'm really having trouble imagining why your old air...

I think a "bonded seal" is another name for a Dowdy Washer. It's like a flat washer, but has Nitrile flaps bonded to it. They work really well. The maverick uses a Dowdy washer between the air tank and the fill adapter I think, maybe on the fill port also (I've never taken that off). I...

Howdy again jakob8572. We keep running into each other because it's maverick related I guess and it's the only pcp rifle I own. So if you don't have the x-rings specified in the mav schematic, I don't see any harm in using the supplied o-ring. It's not going to hurt the wika gauge or the...

I don't know if the impact mk2 has the same amp regulators as the maverick, but if so then this video may help. stovepipe

When I replaced the crap fx gauges on my maverick, fx had cranked them in so hard that the x-rings were unrecognizable and came out in little bits. I remember having to use a fricking cresent wrench or pliers or something to get the crap gauges off. In order to avoid the little bits falling...

Definitely do YOUR thing. That's what it's about. It's like when I used to ride dirt bikes there would be 5 other guys with the exact same bike -- at least the same from the factory, before we started modifying them. It didn't take long before none of these bikes were exactly alike because of...

I agree with this. One thing though about having more air capacity on the mav with an extra plenum section added -- technically, you do have more air in the gun because of the larger plenum, but once the plenum pressure drops below the reg pressure that "extra" air is not usable. In other...