GTA
Airguns by Make and Model => Benjamin Airguns => Topic started by: Nate the airgunner on February 26, 2012, 05:59:54 PM
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I shot a 5 shot string at each level of the manufacturers recommended amount of pumps (3-8) over the F-1 chony today, using CPHPs, these are the results. This gun is broken in, with no mods whatsoever.
3 pumps- 463.2 fps average.
6.8 ft-lbs
4 pumps-514.9 fps avg
8.4 ft-lbs
5 pumps-563.5 fps avg
10.1 ft-lbs
6 pumps-593.8 fps avg
11.2 ft-lbs
7 pumps-624.8 fps avg
12.4 ft-lbs
8 pumps-648.4 fps avg
13.4 ft-lbs
I did not record high/lows, and extreme spread, but I can tell you, all the pump levels did not differentiate out side of 10 fps.
As you can see, past 5 pumps, each additional pump only adds about 1 ft-lb to the energy being produced. Surprisingly, 3 pumps gave us almost 7 ft-lbs, enough to take small game humanely out to about 20 yards. At the full 8 pumps, you can expect to take small game out to 50 yards, IF you can hit the killzone everytime that is.
Thanks for reading.
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Sounds great! Wish I had one! I would just use 3 pumps to clear the feeders. haha
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Sounds great! Wish I had one! I would just use 3 pumps to clear the feeders. haha
Its also gets harder to pump after 3 pumps, the first 3 are all the same it seems, and with only 6.8 fpe in .22 cal, pass through is bound to not happen.
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Looks great Nate, those are really good numbers. If you can hold your own in the accuracy department you will have the small game running for their lives
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Looks great Nate, those are really good numbers. If you can hold your own in the accuracy department you will have the small game running for their lives
All i need is a rear sight that doesnt not so good like the stock one, looks like ill be dropping another $35 for a williams before i can get the Mrod :(
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That's okay man, the peep will help you get the best accuracy man
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If you don't wanna put no more money in it, just send it to me! :D I want one! haha not bad enough to trade my Marauder for though.
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Your number are almost the same as mine. I,m very lucky mine like the daisy wadcutter best so it,s super cheap to shoot. Here,s my numbers with daisy wadcutter 14 or 14.3 gr 3 =485 4=538 5=580 6=623 8=670. I plink with 3 or 4 pumps very accurate with peep . Not bad for a 99.00 refub from r&l supply
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your young nate and it keeps your muscles in tone. good speed for ammount of pumps
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Your number are almost the same as mine. I,m very lucky mine like the daisy wadcutter best so it,s super cheap to shoot. Here,s my numbers with daisy wadcutter 14 or 14.3 gr 3 =485 4=538 5=580 6=623 8=670. I plink with 3 or 4 pumps very accurate with peep . Not bad for a 99.00 refub from r&l supply
WOW :o little better than mine, and im glad to hear the peep is nice, any idea where to find different aperatures for it?
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your young nate and it keeps your muscles in tone. good speed for ammount of pumps
lol, i need it, im scrony.
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Fun guns and hard hitters - I really enjoy my 392 for sure! :)
Tim
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of course all those numbers change if you send it to mac1 for a steroid upgrade with . tho the stock gun is nice with my steroids i hit a tomato paste can dead center at 71 yds with 11 pumps , more often than not it will jar the can and it rolls down the hill
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I love mine.
Its a 392PA with full billet/steroid treatment from Mac-1.
Scoped.
I CAN plink with low pumps, but my setup is really for 35yds and over, scope wise.
The gun will dump 13 pumps....I can get a little more power by going to 15, but since it won't dump it all, its not worth it to me to pump the extra 2.
Getting this thing to 13 is nothing, pumps very smooth.
I need to chrony it with Kodiaks, to see what it is putting out.
I would like to do a cocking knob, or some other configuration with the bolt, the bolt's are a little cheezy.
And I will buy an aftermarket sear....AoA sells these.
Would also like to get a thumbhole stock for it.
I am thinking the last time I chronied mine, it is doing 22 ftlbs not bad for a little gun like this.
God bless,
Farmer
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i have a cocking nob, on mine its scope friendly , i thought your not supposed to pump it more than 14 times? over that supposed to lose velocity and damage valve
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Please Gmail or call me @ 513 490 0035. Concerning thumbhole stock and bolt knob..... Greg. (http://i.imgur.com/JATgg.jpg)
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any idea where to find different aperatures for it?
I kinda want to know the answer to that as well. I still havent got used to my williams peep sight and figured a smaller aperture might help. I think my main problem is the front sight blade being too wide though. any tips on using the sight for best results?
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any idea where to find different aperatures for it?
I kinda want to know the answer to that as well. I still havent got used to my williams peep sight and figured a smaller aperture might help. I think my main problem is the front sight blade being too wide though. any tips on using the sight for best results?
The front sight is brass, so you can file it down easily, and then re-paint it, but then still stands the large aperture problem.
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Thanks for posting numbers .... I had wanted to shoot mine over the chrony , but haven't gotten to it.
As for the Williams ...i want to order one .
I know different apertures are available, but I can not find any info .
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Sorry guys, just got back to this thread.....
RE: pumps.....hmmmm 14, you might be right. I thought it was 15 on the Roids, will have to check my pprwork. I keep it well lubed with secret sauce, so the one extra wont kill it. Mine is also the billet version.
Greg, I will get back to you in a couple days.......a couple of public questions......
Your bolt, what is it made from?
Are you also the maker of that FANTASTIC looking breech cover?
How does that sucker go on, remove the bolt and slide over? Fastens to what, the screw holes?
That breech would get my cheek weld back down to normal, almost.
Will get with you at the phone number later this week.
Thanks and God bless,
Farmer
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I found this.... a number of people stated , There is not enough adjustment to zero at 10m.
This is a problem .
https://www.pyramydair.com/product-all-reviews/a/air-venturi-williams-64-peep-sight/5 (https://www.pyramydair.com/product-all-reviews/a/air-venturi-williams-64-peep-sight/5)
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This looks like an interesting idea....
I think i'll try this one.
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Great numbers.
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it s 14 pumps , if ya pumo it 15 it loses velocity, but i agree these are tough guns hard to hurt, iuse the sauce too good stuff looks alot like tool oil tho , my gun is however very very accurate for a 392
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No argument here.
When you get a good trigger group polish on one of these, and lube it correctly, it is darn accurate. Way more accurate than the Disco I owned, at 50 yds.
Folks can rave all they want about the German engineering (and rightfully so, in alot of cases) but when you can buy a good Refurbed Benji 392, do some basic mods, put quality seals in and have a 700 fps gun with that kind of accuracy for 120 bucks.....or BNIB for around 150-160...it is hard to criticize. Sure it needs a little kind love, but folks most always say that about a spring gun AND one that costs 2-3 times as much.
Somewhere we have been hoodwinked into thinking these guns are lesser....but they are still a very good value. Still walnut and steel.
13 pumps it is then, since at 14 it wont dump it all anyway.
Kodiaks shoot best from mine.....overall. Power output is phenominal.
God bless,
Farmer
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If you get a Williams peep for the Steroid it has to be milled so it sits lower on the rifle.
It will run out of adjustment if you don't. ;)
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That's really good power, Nate. Thanks for the post!
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theyre brass and walnut, reason to like them even more , they do shoot well especially when they break in a bit and the overspray is removed from end of muzzle
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You guys are all welcome for the numbers. As for the walnut stock, I dont think the new 392s and 7s are walnut, they are American Hardwood, but Im fairly sure not walnut.
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I have a 397, but now I want a 392, too!