sonic boom
Helo folks just thinking out loud here but…
i was wondering if anyone has fitted a .177 barrel to an edgun and if so what power your getting etc? working backwards from the pyramid air calculator with an average .177 pellet weight of 9 grains i get this
pellet weight:9 grain velocity:1276 ft/sec foot-pounds32.55 or joules 44.13
32.55 is more or less what a .22 edgun is set at for 900 fps
I realise this calculation is prob very wrong im just guessing of course
Question is 1276 FPS is 870 MPH and as i have never delt with a air rifle this powerfull (cos im in the UK land of the free home of the severly restricted lol) i was wondering do you get a sonic boom when fireing ?
i have never heard mention of a sonic boom from an airgun so dont laugh if im totaly wrong here and guns like the daystate ranger80 fireing at 80ft lb in .25 would surley have one if it is even possible ?
thanks in advance guys regards lyn.
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Send the Edgun to me. I’ll take care of all changes, at no charge. It may take a while to clear U. S. Customs when I send it back, so you must be prepared to be patient! Whatever happens, you should simply wait and not notify any officials. It will just delay the export process.
Ask anyone here….I can be trusted like your own mutha, er….mother!!! :nono:
H 😯 😯 T
I think you missed the point HOOT i have 3 edguns in .22 at the moment i am thinking about changing one to .177 with a BSA barrel wich means i cant leave it at the factory setting .
And yes over 50 rabbits a night in one fill is about the only advantage of the 12 ft lb uk legal limit i can take 30 in a nigt lamping with a shotgun on 1/5th of my current permission 70 with a silent airgun would be easy if i didnt have to walk it lol
In my reading of Eduard’s comments, he has suggested that 850 fps seems to work best in .22 caliber.
.117 is a common Edgun caliber. For maximum accuracy, leave it at the factory setting!
The Edgun’s regulator is a finely tuned instrument and maxes out shot count regardless of your setting.
So leave it at the factory setting it came with. Ed wants his guns to have maximum power, accuracy, and shot count, and his factory settings do not need to be tampered with…unless you’re plan on getting over 50 rabbits a night on one fill.
I’ve owned two Edguns and I’ve never felt the need to adjust the power on either one of them. Plenty of power and more shot count than I’d ever need on one outing.
Lot’s of posts on Youtube, and in the Edgun section here. Do a “Search” for the topic you want to research. Trust me when I say there is no subject uncovered for Edguns on this forum.
Regards,
Hoot
Can’t comment on the Edguns (unfortunately) as I never had the pleasure of shooting one or owning one. I am sure you will be able to de-tune it for an optimum shot count (but again, I am not certain, perhaps many of the Edgun Guru’s will chime in for you). In addition, most pellets prefer a certain speed (as I’m sure you know). Slowing them down or speeding them up past their preference would be counter-intuitive.
thanks 80 grit that about covered what i was interested in knowing
but that also had me thinking is there a lower power setting for an edgun that is even more accurate then the 900fps 32 ft lb combination everyone seems to favour ? and what is the shot count of an edgun at this setting i have three but havent fired them yet Oo.
im more interested in flat trajectory and shot count than power out past 50 yards. i lamp rabbits at night and distance estimation is tricky and since i can get 30-70 in a night ide sacrafice power for shots to some extent.
Any pellet travelling upwards of 1129 fps will make a loud crack. It will also loose accuracy. Most have found that although they can be pretty accurate traveling beyond the SOS at short ranges…they tend to destabilize when they go from supersonic back down to subsonic (at longer ranges) due to the inherently “handicapped” Coefficient of the skirted pellet design.
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i can vouch for hoot: i believe his mother does trust him. (but not with valued airguns shipped over state lines or borders.)