Bill S. (Login tripleguy) from IP address 156.76.147.55
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Not mine (hasn't arrived yet) but Fireball's (Crosman forum moderator). His comments thus far very positive. Lots of room for modding if that's what you're into. Stock numbers are about where I expected. A 20 fpe rifle in stock form. My concern won't be more power, although I think that will be easy with valve mods and higher fill pressures. I'll look to get the shot curve a bit flatter which should also be pretty straightforward with an HDD and hammer spring adjuster. Just thought these interesting numbers for a $250 PCP.
Low ME is 17.82 FPE if you take the 2nd shot through the chrony, or 18.65fpe if you count the 3d shot which was the 2nd lowest at 766.3fps. How did he come up with 19.9fpe as the lowest? Or was that you Bill?
So it looks like you get to "full power" after the first 10 shots or should I say start shooting at 20FPE after 10-11 shots.. Then 15-16 "full power" shots at over 20fpe, and then it starts dropping again, pretty sharply after that. So to me the way I look at it, and this is just me, is that the gun is a 20+FPE gun for approximately 15-16 shots. That is how I view it but others will have their own view. I can also see it as having 30-35 shots of hunting power but (like my 850 CO2), the POI and trajectory will change between 820fps and 745fps so that is something one will have to get used to compensate for especially when shooting at 30yds or beyond.
Did he say how many pumps to get it back up to 2,000psi after the ~34 shots (I counted 34, maybe it's 35?)? Is it about twice the # of shots, like 70 pumps as I had read somewhere?
Diana 350 Mag .22
Hammerli 850 .22
Various Crosman CO2 & Pump
I didn't check the math, so I'm not sure of the low ME. All PCPs shoot in a power curve. Obviously, the flatter the more desirable. That said, it's a fairly easy fix on the Discovery. It's already known there is hammer bounce in this gun. Adding a hammer debounce device will greatly improve shot count and will make the power curve much more linear. It's an easy and cheap mod.
He didn't report the number of pump strokes but I suspect you are correct in doubling the previous reported number. That will come down some with A) a shorter fill line and B) as the number of useful shots goes up, the number of pumps per shot will drop. I expect with an HDD you'll see 70 pumps and 45 - 50 full power shots.
"but I'll be needin' that gun, fer squirrels and such."
The .22 cal Discoverys are now starting to ship. Fireball posted a new string with some minor modifications - clover valve stem tolerance. As I suspected, this thing is really going to cook once the mod guys get ahold of it. There is still a lot more potential here as spring rates or valve porting hasn't been touched yet. Sure, it's not a stock model but right now it's a $250 gun with maybe $10 in mods. into it. Long way to go to hit $500.
"tossed in a 1/16" probed bolt from a 2240, how's this for consistency?
has 30 shots compared to the 1st string that had 33 and an error for 34 shots. there is an increase in fps on the 2nd due to small mod's
talking about modification's, what is you view of realistic mods and total cost's on this PCP
I know you can go for $1,000 mod on any gun if you want, just talking about those mods that will let the gun shoot 850-900 fps on a 30 shot string and accurate
In your opinion, should the Discovery stay between 2,000 to 2,500 psi. Im asking because the string would benefit from that 500 more in psi, that would also increase the pumps of course
God, please don't let get the PCP infection but if it's a PCP that is moderately tuned and shoot's .22 at 900 fps without the recoil and vibration of a spring gun and at $500, then I will not vaccinate myself for this bug yet
warren
and remember "it's 30% the gun and 70% the shooter"
900 fps does seem within reason as the gun builds nicely to 850 now. I'd say if we can boost fill pressure to 2,500 or so and experiment with springs and valving, we can get there and more.
I'm not sure that the best combination might be swapping out a .25 cal and getting it to settle in at 800 - 850 in that cal with some .21 grain pellets. I think you're seeing the tip of the iceberg here with regard to power mods. I suspect you will be able to stay under $300 and have something in the 9's in .22 cal if that's what you're after. I personally don't need that so I might eventually experiment with a larger bore. There already is talk of a cheap 2-stage trigger mod that gets pull below 2 lbs. I think there will be a ton of mods coming on this one.
"but I'll be needin' that gun, fer squirrels and such."
EXCITING Bill! I had no doubts that with some mods the Disco would become a worthy adversary a few can resist.
Dang you guys are drawing me closer to the DARK SIDE now..
Warren: Stay away from the dark!! Don't look into the darkness..!!
It's funny how in the car world, people that modify their cars say: "he/she or I joined the dark side" when they add turbo or a supercharger to their previously N/A (naturally aspirated) motor.. ie: A LOT of air flow.
And now I see the same term used with airgun mods. The term "going to or joining the dark side" is being used a lot on the forums when someone buys their first PCP. I wonder if a car guy started using the term "dark side" for airguns..
I 'm willing to rent it from you for a couple of days for a price, after you have used it for a while. Just want to shoot it for a couple of days and return it to you. I 'll pay shipping both ways + a fee.
I mainly want to see if I 'm going to like pumping a PCP gun and if it's worth the work for 25-30 shots. I don't have any Scuba shops anywhere near here so pumping is propably the only option for me which I don't think I 'm going to like.
I wish PCP's were not that much trouble. Couldn't they come up with some new design that sucks in air around it by itself when you open a valve, like a vaccum?
Diana 350 Mag .22
Hammerli 850 .22
Various Crosman CO2 & Pump
I know my local Cabelas was filling tanks . Paintball supply shops also - whether it's the "right" kind of air I do not know . I believe there are options other than scuba shops though.
will eventually be discovered too and what it takes to
make good better or make not so good better to a lot
better.
We've seen lots of Cr 17/22xx and QB PCP conversion guns
in various calibers up to big bores from pistols to long
rifles and with under 2000 psi fill pressures to over
3000 psi fill pressures. Some act as though this Crosman
factory conversion gun is some great new discovery!
I would have spent little time on the matter if guys in
the know wouldn't have acted like they were dummies. Also
I wouldn't have gotten nasty if a bunch of guys hadn't
gotten nasty with me first. Been going on for years now -
many gang up on me, insult me, send e-mail threats, tell
lies about me, etc. Since I'm not a masochist, not a 'sub'
my response spanks, smacks down till the "ban boy" pushes
his little button from a safe distance. I'm a nice guy that
gets mean with dirty low down, lying, cheating, back stabbing
mfers.
If Gamo had came out with a low cost PCP rifle right now instead
of Crosman - soooooooo many would have slammed it! If I'd have
came on strong in slamming it sooooo many would have cheered me
on. If Gamo farts they get punched out. If Crosman farts many go
down on their knees to get a good whiff!
Even if a fella has to spend some time and money on the Benji
Disco it's not a big deal, a bad thing or whatever. Many of us
do that with a variety of airguns that cost us little to a lot.
We like to personalize, customize, trick, tweak, improve our
airguns. Nothing wrong with that.
What brought that on Herb? Bit of a persecution complex?
You don't need to listen to my advice - certainly my wife doesn't. I'd just encourage you to read your posts before you respond and take out anything that is opinionated or isn't able to be backed up by fact. I think it's your emotions that get you in trouble on the forums, not your knowledge which I happen to respect. Look at your last post and ask yourself, what in it is opinion and what is based on either your experiences, or published experiences of others. I think that might go a long way to keeping you on the boards.
Again, just my advice - take it or leave it. Everyone knows I'm not using it.
"but I'll be needin' that gun, fer squirrels and such."
Crosman is a USA company making USA products in the USA with USA workers
if Gamo wants to do the same as Crosman with a PCP product made in the USA, YOU ARE WELCOME but for the same price and specifications
I will use some of my tax money rebate to buy the Crosman, God knows I have plenty of Chinese products in the kitchen, German in my RWS guns', Korean and Japanese in the house. I am after all a US citizen trying to help US workers
WHY?? not an american product and for $299.00 what is the downfall
Think about this, you are all about the Chinese, Russian, Spanish, German, etc.. and other countries. what happened to MADE IN THE USA
warren
and remember "it's 30% the gun and 70% the shooter"
I have been enjoying your points-of-view, comments and banter regarding our common interest in quality air rifles. Thanks for your honesty and frank opinions on a variety of topics. I look forward to continuing to hang back and listen...thanks!
Diana 34 for the Mrs...
Diana 54 for the varmints...
Gig Em!
The Mrs. aim is pretty good and she really enjoys the rifle...we use the Dianas on little varmints (aka grackels, possum, etc.)...variety of firearms (.223 to .30-30) on those pesky feral hogs...can't wait to head down to the ranch at the end of the month! Also, using the Diana 34 with our oldest (10YO) on basic weapon safety and shooting training...obviously spoiling the lad with the Model 34, but he is developing good taste...and good fundamentals!
Again, thanks to all on this forum for the information and opinions! And remember, be safe, Nobody Gets Hurt!
Diana 34 for the Mrs...
Diana 54 for the varmints...
Gig Em!
in the Discovery would be a major reconstruction project
but a .27 grain in .25 cal @ 900 FPS generates about 50 FPE, that is good for COON hunting, no springer reaches that area only PCP guns'
being able to modify the air could gives you the possibilities of using the range between 800 and 900 FPS which is also and advantage
the downsize of the PCP is you either go with a hand pump or scuba tank. having said this I pray that someone loading the reservoir does not try to go to 3,000 psi. there are always IDIOTS out there that want to experiment and put more air in it that is allowed
2,000 to 2,500 is an acceptable PSI if the gun will allow it
warren
and remember "it's 30% the gun and 70% the shooter"
A barrel swap and maybe some bolt work. I think you could safely fill to 3,000 psi. The tube's been hydro'd to 12,000 and you usually work with a safety factor of 3. Roy from Mountain Air plans to offer a Disco in .25. It will happen.
"but I'll be needin' that gun, fer squirrels and such."
