Test #2/ 4400 psi fill with new 4500 psi Bottle
Wind finally quite blowing for a while this morning, and I had some air, sooooo= A test was in order. 😀
This is with teh New 4500 PSI Bottle that DMan got in for us. And a good looking Bottle it too!
I had been shooting it at 3800 psi with good results, but wanted to try somthing different with it. I have kept the .257’s Power Wheel on 7 to 8 for a long time. But just for shit’s and giggles I decided to raise the pressure and see what would happen.
I had alread tried this at 8 on te PW, and anything over 3850 and the shot would drop like a rock. 😯 This was starting out at 1020 fps. @ 3850 psi with the NOE 60 grain 20/1 lead tin/ bullet. Now keep in mind that this was quite an improvement over teh Factory AF Bottle filled to 3000 psi. (although I cheated and filled to 3400 several times) which gave me a top velocity of 1020 at the 3400 fill. 3200 would give me 960 and the factory recomemded 3000 psi would clock in at 930. So what would the 4500 psi bottle and pw adjustment do with my short 21″ bbl?
:8: She really started shooting at 4000 psi with the pw pushed up to 10 and then started to drop fps again if pushed any higher. Time to get radical!!!
I tired the full on adjustment maxed out on the PW at 4500 psi adn Nope, dropped like a rock. 😥
I gave her one last try and moved the fill down to 4400 psi. And WOO-H00!!! 😀 Happy Days!!!
I finally got a killer Bell Curve at this setting. Here are the numbers, But First, with out accuracy, numbers are useless! The 257 Talon/Dor started shooting un-blievably consistenty, as in shooing clover leafs at 80 yards. Time and Again. From just under 1/4″ to just under 3/8″ at the 80 yards. with many of the groups only one slightly larger hole and usually one bullet making one touching hole. (there always has to be one, right!) 👿
So now that it can shoot a Squirells eye out at 80 yards, what were the numbers?
Starting with a 4400 psi fill they were:
1037 @ 44 PSI
1051
1061
1060
1045
1041
1033 Ending at 3800 PSI
Man I was and still am Stoked!!! :8: Only 600 PSI, and shooting just under super sonic. Perfect for my LDC’ed Critter Gitter!!!
Thats 75 psi, or 5.17 Bar per shot at a starting 150 FPE and ending at 142.2 FPE
Hell Yeah!!!
KnifeMaker
Knife
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Keep pestering me with all your high velocity crap while I am peacefully enjoying the wonderful weather and culture of Asia!
“O” s 😯 hit! I’ve woken a sleeping Giant!!! 😯 But you living over there in in they’re laid back culture, and eating all that fresh Sea Food, I’m supposed to feel sorry for you? 🙄
NOT HARDLY!!! :rofl: 😈
Knifie
The last couple nights I have been tossing and turning in bed with these reoccurring dreams of a 36 inch Condor SS with one of those 4500 PSI tanks feeding one of Doug’s valves and holding a couple stories over some hapless 12 oz soda can, looking thru a SWFA Sniper scope contorted out of shape with a high ring in back and a low ring in front.
Okay, enough, you get you way Knifemaker.
I bought Jamie’s 4500 PSI tank, next will be a valve from Doug.
When I get back the wife and I are heading for Burns to live, that is 25 miles from my old mountain house and 1100 yard range where I did the Pepsi challenge, I will check at the local welding shop for a 6000 PSI source of N, if not it will be a Shoebox most likely.
I hope your satisfied. 🙄
Just a suggestion, please.
If the bottle is chinese, why not a chinese valve?
http://www.aliexpress.com/item/Pcp-AirForce-Condor-Constant-pressure-valve-High-pressure-valve-Valve-A-body-double-table-constant-pressure/1335337020.html
I use one and it works good.
Ooh, good point… Or an adjustable one… for those that want to bump up the power or caliber… Good, good call…
Now what would be cool would be a 4500/2000 PSI regulator to fit between the bottle and the MRod valve.
oh, I’ll be getting mine soon enough- Monday or Tuesday… or so the PM says! I’ve been looking at Doug’s valve w/o a tank for so long, and now it has a home!! God, I need to find a machinist to make my frame!!!!!
I keep forgetting you haven’t seen one. LOL
ask knife.. they did a nice job on them with the black under the clear coat.
Yeah, I know… but how cool would that be???? 😈
It would just be for looks, really… Just cause you got it don’t mean u got use it to full capacity yah know!!!! just another option
Hmmm… I’m not even sure the MRod valve would be able to handle the psi… Unless someone designed a new one, or messed around w/the stock valve enough to figure out a good spring combination… Hmmmm… .30 MRod w/a 4500 psi bottle? Yes please!
Id do another order ….. And yeh this time Ill probably have to order 30. so a 50% deposit on at least half. and if someone wants one after i get them I’m gonna raise the price.
Probably 175 with deposit and $200 without….
I wasn’t able to find the right shipping boxes cause i kinda waited and didn’t quite plan it out well. so i had to make the ones for these. PIA.
so next time I’m ordering them so it won’t take me so long.
i bet the guys with the MRod bottle conversion would love these…..
yes Dman, they are… you should see if more people are interested… this time though, guarantee their purchases with a % down payment… That’ll get em! :darth-vader:
Keep pestering me with all your high velocity crap while I am peacefully enjoying the wonderful weather and culture of Asia!
The last couple nights I have been tossing and turning in bed with these reoccurring dreams of a 36 inch Condor SS with one of those 4500 PSI tanks feeding one of Doug’s valves and holding a couple stories over some hapless 12 oz soda can, looking thru a SWFA Sniper scope contorted out of shape with a high ring in back and a low ring in front.
Okay, enough, you get you way Knifemaker.
I bought Jamie’s 4500 PSI tank, next will be a valve from Doug.
When I get back the wife and I are heading for Burns to live, that is 25 miles from my old mountain house and 1100 yard range where I did the Pepsi challenge, I will check at the local welding shop for a 6000 PSI source of N, if not it will be a Shoebox most likely.
I hope your satisfied. 🙄
Boy these bottles sure are something…. Brought the champ out of retirement! :biggrinn:
Charlie, I assume you’ll be running .257 again? If so, it might be worth considering having the barrel forged with a 9/16″ OD…:)
cheers,
Douglas
MWAHAHAHAHAHAAH!!!!!
THE RETURN OF THE KING!!!!!!
:8: :rofl:
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Yep, just what I was dreaming about last night. A MRod bottle conversion or a Rapid. Either with teh 4500 psi bottle and a REG! :8:
This AG stuff is just getting better and better! 😀