I bought a 1077 from Pyramidair several weeks ago. Overall, I think it's great. Just one problem. The velocity is inconsistent. When I first load a CO2 cartridge, the first one or two shots are not up to full speed. This also happens if the gun has been sitting for a while, even as little as a few hours, with a CO2 charge. This is my first CO2 rifle, so I don't know if this is to be expected. Is it just a quirk of these particular guns? Is it just my gun? I know someone is going to suggest switching to the 88g tanks, but I'm not going to do that for various reasons. Any other ideas would be appreciated.
It's the gun. My 1077 started off that way. Drove me crazy too. It got better...more consistent. You have to keep shooting it. In my case, the trigger and hammer mechanism combination. I took the gun apart, polished/cleaned, then oiled all contact surfaces. I'm not saying you have to do that. For now, I'd say keep shooting it.
There's a guy in here who was a Crosman engineer, maybe he'll chime in and give other tips.
Thanks. I was hoping it was just a case of breaking it in. I've put maybe a couple hundred rounds through it, but I guess it needs more. Well... in that case, I'll just have to go to the back yard and find some tin cans that need to be taught a lesson.
How fast are you shooting? The 1077 doesn't really like rapid fire (never mind what Crosman's ad says). I shoot 1 or 2 seconds between shots. That's not long, just long enough for me to re-acquire my target. Mine usually becomes consistent after the first cylinder. Have fun....keep shooting.
I bought my 1077 from Pyramid Air early in the winter.I guess I didn't realize at first how the cold winter temps effect a CO2 gun.These guns really don't do well in the cold.According to B.B.Pelletier (Tom Gaylord) in his blog based at Pyramidair.com, in order to get the most consistant velocity, you should wait at least 15 seconds between shots in warmer temps, and 30 seconds in colder temps. I believe him.He has stated that his 1077 gives him "dime-sized" groups all day at 25 yards.
Just fir the heck of it yesterday, I kept shooting knowing that my CO2 was running low.I shot two five shot groups at ten yards.I watched as the second group, even though I was aiming higher at another section of the target, drop down into the middle of the first group as the CO2 ran low. Some people will fire off once or twice after putting in a new CO2 cartridge in order to get the gun to settle down. I'm looking forward to some good shooting with my 1077 as the weather gets warmer. Also, my trigger is improving somewhat with use. I also have one "springer" air rifle and a multi pump. The springer is hard as hell to get consistant groups just due to the characteristics of springers. The multi pump (a Remington Airmaster 77) is a great shooter and so far is giving me ragged one hole groups at ten yards, and is not at all picky about what pellets I use.Compared to my springer, my 1077 is easy to shoot, but I need to change to a new CO2 cartridge maybe every 35-40 shots.
Also, are you using a drop of Pellgunoil each time you install a new CO2 cartridge? Just one drop on the tip of the cartridge is plenty, and some do it every other one.
I do always put a drop of oil on the tip of each co2 cartridge before loading it, as that is what is says in the manual. Temperature isn't really a factor because the rifle hardly ever goes outdoors. Mostly I pick squirrels out of the bird feeder from my living room window. I've tried several different springers and got fed up with all of them. I could never get decent accuracy in spite of trying every suggestion in the forums. I had a Crosman 2100 (same as the Remington 77). It's a great gun (or was until it fell out of the back of my pickup). I would buy another one if only they would redesign it. They should forget about the bbs and make it with with a five round clip, like the 760. It is much too difficult to load the pellets the way it is. Also, I wanted to have reasonably quick follow up shots. Those squirrels are like the cockroaches of the rodent world. It's almost impossible to kill them with one shot. The 1077 fits the bill, if this velocity issues settles down.
I know that rapid firing a co2 will cause a drop in velocity, but the issue I'm having isn't caused by that. It's just slow the first time I fire it, which can be a problem if I've got a squirrel in the crosshairs. If that first shot isn't up to speed, it will likely just scare him off.
Hi, I have a different problem. Mine fires full power (640 fps) for the first three or four shots, then settles down to 440 fps before fading away after the second clip.
