Can anybody tell me how many foot pounds of energy my Diana 48 chambered in .177 has out of the box?
I did a search that came up empty.
I did a search that came up empty.
Diana Diana 48 .177 ft. lbs. of energy?
- Thread starter Deadeye Dick
- Start date
You could use Diana'a claimed speed but you would need to know what pellet weight was used. Can't really answer this unless you know the speed your gun is shooting and what the pellet weight is that generated that speed.
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Every airgunner needs a chrony. There are charts available that tells fpe if one knows pellet weight & speed at which it's shooting.
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Thank You! That's the short answer I was looking for. May I ask where or how you got this answer?
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Got a chrony, just haven't used it yet. The factory rates it at 1200 fps but I have to assume that they used the lightest alloy pellets available to get those speeds. They sure don't agree with the ones I've read about going through a chronograph. I guess I should figure out what pellets are most accurate in mine first, then stick with them.
Thanks to all for the answers thus far. Keep em coming.
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Airgun Depot claims 1100, this is why there is no way to get an accurate answer. Chronograph the pellet you want to use, then you will know, everything else is a guess.
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https://www.pyramydair.com/blog/2006/08/diana-4852/
i think 15.5 would be on the low side and 18 on the high side but they could get higher with a spring change
https://www.airguns.net/calculators.php
if you know your numbers you can find you power level
i think 15.5 would be on the low side and 18 on the high side but they could get higher with a spring change
https://www.airguns.net/calculators.php
if you know your numbers you can find you power level
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177 is a choked caliber, but I'd think the design is good for at least 18 fpe. A 177 R1 with less swept volume realistically produces 17+ fpe.
IMO (you know the one you're fed up with) magnum springers deserve larger calibers. Small caliber large swept volume guns generally have nasty shot cycles and make considerably less energy than their larger caliber models.
IMO (you know the one you're fed up with) magnum springers deserve larger calibers. Small caliber large swept volume guns generally have nasty shot cycles and make considerably less energy than their larger caliber models.
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For the Diana 48/52/54/56 guns in .177 about 16ftlbs to 18ftlbs seems about right for a ballpark guess. This is assuming a healthy full power model with decent seals. To know for sure you'll need a chronograph... as previously mentioned. Also, just shooting various pellet weights/styles/brands can cause a fairly wide change in power produced, so one gun may peak with a certain pellet and another gun of the same model might not.
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I had a really early one back in the late 80's, .177 cal and did an honest 17 FPE. I recall thinking it actually behaved pretty well considering the power - I sold it mostly cuz the power was downright scary for my suburban back yard!
I'm a life-long .177 fan, but have to agree the 48 would be a better rifle in .22.
I'm a life-long .177 fan, but have to agree the 48 would be a better rifle in .22.
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More weight the pellet has ... it may shoot slower, but FPE rating will go higher .. to a point.
Will agree as a .177 caliber 16-18 fpe range is pretty typical for FAC rated guns.
Will agree as a .177 caliber 16-18 fpe range is pretty typical for FAC rated guns.
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Bought it in .17 to standardize pellet buying. I want to be able to buy inexpensive ammo at Walmart or other local stores. Now wondering if maybe .22 would have been a better choice?
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While never owning one ... tuned & serviced dozens.
They are a magnum springer and when barreled in .177 if you stay with heavier pellets 10G + it should operate the best being smoother and least jumpy.
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I've had the 48 since 2016. And as Scott says above? Stay with the heavies.
I bought this off a friend after watching him hit a 4" square target, at 90 yards, many times in a row!
I bought this off a friend after watching him hit a 4" square target, at 90 yards, many times in a row!
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Well don,t have factory mine after a vortec kitCan anybody tell me how many foot pounds of energy my Diana 48 chambered in .177 has out of the box?
I did a search that came up empty.
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That's about what you will get at sea level. Just remember, the higher you go the slower a spring piston will be.
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