Discovery in .177?

Iive pretty much decided to order a Discovery, but am undecided on which caliber.
It seems all I see is data onl the .22 rifle. Anyone have a .177 velocity list using normal
weight pelletts? By normal weight, I mean 7.5-10.5 grains or at least in that range.
I'm looking at the low cost side of shooting. I know what Crosman published as far as specs.
go, but I would like to know real world velocity.

what's up jim, it's seems that crossman made many points about the discovery,in my own opinion,none of them were correct except for maybe it being affordable...i agree with it being affordable,it is also overpriced & not worth $90,i think the pump is worth more than the gun,what a disappointment..........."JUST MY OPINION"...you know what the say about opinions...good luck with your decision!
                                   JOE CUZ(AKITA BREEDER)

Hi Majorrose,

Well it all depends on what you are planning to do with your air rifle. If you are an occasional shooter who just likes to go plink at some objects or maybe you enjoy target shooting. For these purposes a .177 would be the right choice because they give you a slightly flatter trajectory as compared to a .22 only because the .177 caliber pellet will be going faster. However you may plan on hunting or even just taking out the ocasional pest which a .177 caliber can do also, but thats where the .22 steps into play. More Kinetic Energy resulting in more down range energy. Considerably more than a .177 because the slower .22 in this case  will have less wind resistance which wont slow the pellet down as much. How much energy are we talking about here, well after reading a few articles about the Discovery's performance in .177 you will probly average around 950 fps give or take a few and in .22 around 850fps. These are with crosman premiers 7.9 g & 14.3g.
In energy terms wiith the .177 your looking at almost 16 foot lbs, and almost 23 foot lbs with the .22. Of course the only exact measurement can come from your gun and a chronograph. So about 7 foot lbs is considerably more when the velocity only went dow about 100 fps from .177 to .22. huh? That is why i reccomend gettin the discovery in .22 becuase you dont lose much of that wanted flat trajectory but yet still gain alot more power. Also now youl have some power to knock about a few things in the back yard just for fun and also be fully capable of hunting. As in terms of accuracy between the two there isnt any noticeable difference other than flatter trajectory with the .177 and a smaller hole diameter punched into your target. The discovery has great accuracy and exceptional power that keeps up with a lot of higher priced pcp's. Very nice gun and well worth the money, imo.

Hope this helps you out,

My reason for wanting a Discovery (other than the "one more airgun" reason)
is due to having some heart surgery last August which makes it uncomfortable to
pump a pneumatic like a Sheridan. About 10 shots and I'm not enjoying it anymore
and thats with only four pumps.
Have wanted a PCP for a long time, but the cost was out of my budget. When the
Discovery came along I thought this might fit my needs and $.
I shoot quite a lot, usually 50-100 pellets a day if the weather permits.
I favor .22 caliber for the extra energy and easier handling of the pellets while loading.
Thanks for the response and advice, I probably will get the .22 and intend on trying the
CO2 option also. Currently, most of my shooting is with a 1322 Carbine with 18" barrell
shooting Crosman Premier HP and a 850 Airmagnum. Pumping the 1322 doesn't bother
me since I can use only my hand to finish the pump cycle.
Jim

Majorrose,

By hearing your situation i would have to say that c02 would be a better option even though you will lose a little power. The discovery does make pumping a hell of a lot eaiser becaise of the 2000 psi fill instead of the "normal" 3000 psi with pcp's. I understand that pumping the sheridian would be a hassle because of the direct upper body stregnth and strain to your heart, which is why a hand pump would probably be a lot easier because you get to use your whole bodyweight with each stroke. Also you dont have to pump the gun after every shot. You probably already know this but not sure so if you havent heard,you get to leave pcp's pressurized when not in use so you olny have to top off the tank every now and then after the first initial filling.

I have a discovery by the way so i can vouch as to its features

[kirby999]

You can always fill your Discovery with a scuba tank. At the low operating pressure of the Discovery (<2000psi) you would get a lot of fills from a 80cf tank; and no pumping at all . kirby

[kirby999]

I just bought a 30cf scuba pony tank off Ebay for $150 shipped . These are rated for 3000 psi / I got mine filled to 3100. A fill gauge set up and hose is less than $50 . $200 is about what the pump would cost . If the airtube is 200cc on the Discovery and I think it's smaller than that ; and you fill the Discovery to 2000psi and shoot down to 1200psi before refilling ; you would get 28 fills off the 30cf pony tank before the pressure drops below where you would get a full fill . You could still get 5 or 6 more partial fills before having to pay $7 (what it costs me) to get the scuba tank topped off. Using the same figures a 80cf tank would give a whopping 73 fills . If I could find a place to sell me a Disco using Paypal ; I'd order one today . kirby

I ordered mine through Crosman, there reputable enough.