At higher elevation, the air in the compression chamber is less dense. When it compresses under the piston, it creates less pressure than the denser air at low elevation. Once the pellet leaves the gun, the thinner air does have less resistance/drag on the pellet.

@@shanepitzer4126 Got it thanks Merry Christmas

I enjoy shooting the Mach1, more than the Magnum. But to be clear. I enjoy them both a lot. Thanks for watching!

@shanepitzer4126 Thanks much for your feedback. Do you find the Magnum to be noticeably louder than the Mach? Not disturbing our neighbors is a consideration. If not much different, I might have to buy a Magnum too! Happy Holidays!

@@ThomasUSofA Well, both rifles have the same baffle system up front, so the Mach1 is a bit quieter. It's hard for me to predict how the sound would carry in your case. I'm fortunate to live miles from town here. It's not a level of noise that would bother me at all, coming from nearby, but some people are more touchy about it, especially if you might be in town, and there are ordinances against shooting air guns in town.

@@ThomasUSofA Well, both rifles have the same baffle system up front, so the Mach1 is a bit quieter. It's hard for me to predict how the sound would carry in your case. I'm fortunate to live miles from town here. It's not a level of noise that would bother me at all, coming from nearby, but some people are more touchy about it, especially if you might be in town, and there are ordinances against shooting air guns in town.

Good to know, thanks for watching and sharing your knowledge!

It's the basic 3-9x40 scope that came with the rifle. Glad you enjoyed the vid!

@ awesome I might have to pick it up, is the trigger modification you did pretty easy?

@@socratese5 Very easy, no disassembly required. Simply remove the factory trigger adjustment screw, and replace with the socket end screw. Here is a link to the screw I used, and it comes with the correct wrench. airgundetectives.com/product/adjustment-screw-for-the-gamo-c-a-t-and-s-a-t-triggers-2/ And here is a link to the install video: kzbin.info/www/bejne/rZWWmmamoddom5I

I don't think you will be disappointed. They are a good bow. I've got 29# limbs, and 40# limbs for mine now. Thanks for watching!

Glad you found the vid helpful. I need to get the cameras rolling again. Thanks for watching!

Well that sucks. Thanks for watching!

Thanks, glad you enjoyed the vid! A 40# bow seems like a very good place for me. I can manage the draw back to 32", and it delivers very good performance.

@@shanepitzer4126 I think its closer to 50lb for you with a 40 lb bow

@@HyperManArchery I think so too.

@@shanepitzer4126 it would be nice and smooth to shoot a 66 inch longbow or 68 for you

@@HyperManArchery Yeah, I don't have anything 68", but I do have a 66" and a 70". It's funny though, the 66" is the Bearpaw Blackfoot in this vid. Although it is 66", the working limbs are not all that long, so It's fairly fast, but I tend to feel it starting to stack as I'm reaching full draw. The 70" is a 45# Galaxy Black Ridge, from Lancaster Archery. It's a budget longbow, but very enjoyable to shoot.

You bet, thanks for watching!

I think the 1600 fps is for the .177 cal, and alloy pellets. Still seems optimistic.

The advertised velocity is obviously fluffed up a fair amount. 830 fps with the 18.13gr is still a lot of power, I'd love it if I could get that speed here.

@@shanepitzer4126 Oh yes it does what it needs to do. I'm not complaining.

Hey Bo, I'm still here! Somehow I kind of fell off the production wagon. I need to get those cameras rolling again. Just recently we had a close call with wildfire (Horse Gulch Fire) we were under evac order, but remained in place anyways. They got the fire stopped about a mile away, but it sure felt close. We were ready to unbuckle and get out of here if we felt it was truly necessary.

I've been watching most of your recent vids. It's good to see you are getting around, and teaching the gals to shoot the bow!

@@shanepitzer4126 Yeah, we're getting some of the smoke in Kansas.

@@shanepitzer4126 I was in a fire in Montana and same scenario.They came through the neighborhood blast in their air horns.Get out, get out.Get out, get out.I stayed there and recorded the whole thing.

@@krausearchery8749 A few pics from our recent fire, i.imgur.com/oV5H3zI.jpg i.imgur.com/vsFfwML.jpg i.imgur.com/aVi8gpV.jpg i.imgur.com/q5sBjSY.jpg

Thanks for watching! I'm glad you enjoyed the vid. I need to get the cameras rolling again.

I was checking out some of your vids and realized I had watched a few of them already, a while back. Nice vids, and bows. Subscribed to your channel.

The archery is almost meditative to me sometimes. Really get focused and relaxed in it. Glad you enjoyed the vid, thanks for watching!

These air rifles are a lot of fun. I got into them a couple years back when regular ammo was so expensive and in limited supply. Semper Fi!

The scope is a Gamo brand, 3-9x40. It's the scope that comes with the air rifle. Thanks for watching!

Human error.

Advertised velocity will be the lightest alloy pellet, near sea level, hot day, shooting downhill (grin). They say it's best to have a muzzle velocity below supersonic anyway, because the transition to subsonic velocity can mess with accuracy. I've heard a lot of air gunners with more knowledge than me suggest that around 890 fps is a great place to be. Thanks for watching!

Nice!

labtrainer, the limbs on the Discovery are the Samick Discovery R-3 carbon/foam core limbs. They are the Long size, making a 62" AMO on the 17" riser. We're blessed with nice scenery here (SW MT). Thanks for watching!

Hi again, Shane. Thanks for taking the trouble to get back to me. I'm trying to gather as much good information as I can about carbon/foam limbs because I'm now shooting maple/glass ones but plan to upgrade in the near future. All the carbon/foam limbs seem to have excellent speed, but various brands and models seem to differ (sometimes significantly) in how they feel toward the end of the draw cycle. Since your draw length is particularly long, I'd be very interested to know how the Discovery limbs feel to you as you near the backwall. In other word, are they stacking at that point? But if you don't have the time to answer, I understand completely! Best, Chris (in Maine)

@@labtrainer09 Chris, to me the R3 limbs do not feel stacky. Naturally the poundage increases as you go further back, but it feels like a constant rate of increase. I do have one very stacky longbow (Bearpaw Blackfoot) that really hits a wall around 30 inches. That's the only bow of mine that really feels like it hits that wall, and it gives me a good reference on how that feels.

@@labtrainer09 Also I wanted to add that I have a SWA SpyderXL with maple/glass limbs, and a Black Hunter with bamboo/glass limbs. To me, the difference in 'feel' compared to the R3 limbs is very subtle, I don't know that I could tell the difference if I was blindfolded.

Thanks for the additional information, Shane. It's really useful. Chris

Tim, the different arrows on the chrono test were all fairly well tuned by spine/point weight. I don't go as far as trimming shafts 1/4" at a time a such. I do test with bare shaft to make sure I'm in the ballpark for tune. The arrow I typically shoot in this bow is a 32" 400 shaft (Gold Tip Traditional) with a 175-200gr point. Keep in mind I have a draw length of around 31-32". The 600 and 500 spine I shot here were only 30" spine (factory length) so I was short-drawing slightly, with the point resting on the shelf. Thanks for watching!

Yeah we're getting about the same performance. The 1100 fps gun would probably be around 800 with the 14.3, and 700 with the 18.13 in your atmo. Thanks for watching!

That was the JSB 18.13grain on the 42 yard steel. Thanks for watching!

Montana

I'm not sure about a 35", but Black Eagle sells 34". Most of mine are 32" shafts.

The gun will do it, but it took me some time and patience to learn the hold that would deliver the consistency. Not too tight, not too loose. Thanks for watching, and enjoy your new air rifle!

@@shanepitzer4126 I have some 3000-4000 dollar Field Target PCP's...that I might sell...haha...as I have just really gotten into break-barrel air rifles. Perhaps it's because as a boy in the 60-70s I had some Daisy and Crosman guns..but also some Weihrauch and Feinwerkbau guns too...I was obsessed with guns and airguns in England from about 7-8 years old. I like that it takes work....isn't that how we truly learn. 🙂

Thanks for watching and sharing your nice comments! I really like this air rifle.

Thanks for the heads up!

Great observation, thanks for sharing!

That's good to know, thanks!

Thanks for watching!

Yes, 22 caliber, thanks for watching!

Glad you enjoyed the vid, thanks for watching!

Thanks for watching, and glad you liked the vid!

Yeah the added draw weight, and the longer power stroke on release, really make a difference. Thanks for watching!

Yeah they should do a number on water jugs. Congrats on your new pistol!

Thanks, yeah I need to get the cameras fired up again.

yes I thought you did a great job.@@shanepitzer4126

I really like mine as well. I'm in Montana.

Being a solid copper bullet, I don't think it will fail from velocity, short of hitting something like hardened steel. In a 'meat target', more velocity will just cause more disruption.

Thanks for watching, glad you enjoyed the vid!

It's a flemish twist string from 3Rivers. It's made of the fast-flight string material, D97 I believe.

Yes. The speed of sound is around 1080 fps. None of these pellets were anywhere near that velocity.

@shanepitzer4126 The gamo site says they can do 1300. I want something subsonic for sure

@@user-bl3si3kq6x 1300 might happen with alloy pellets, at sea-level, on a hot day. With the lead 22 cal pellets, in the 14+ grain weight, it's subsonic.

Glad you enjoyed it! I need to get the cameras fired up and get some new vids going!

Yeah I was just using the camera mic there. Not the best way to go unless really close to the camera.