Googling minimum FPE needed for pellet expansion.

I was last week-years old when out of curiosity I used GOOGLE AI to see what the minimum foot-pounds of energy was needed for pellets like the Crow Magnum, RWS Super H Point, Baracuda Hunter Extreme, etc need for expansion.

To my surprise, it had answers! And as it turns out, my (at that time) stock 392, with around 13+ FPE was below minimum by about 5 FPE (using the Crow Magnums as an example).
 
You still haven’t gotten your AG back yet?

You mentioned something about the seals being the only thing missing n one of your multiple threads about it.
Not yet. I'd thought that since Tim sent me a pic of the scope mount being fitted, he was near finished, just waiting on the pump cup from Crosman.

I promised him when I talked to him on the phone that I would try not to be one of those guys that constantly messaged/called him asking: "Is it done yet?" As of this past Friday, it's been in his hands for two full weeks, but like I said, I promised. I've been thinking of messaging him and asking 'How's it coming?' But I'm trying to convince myself to wait until this Friday...
 
I was last week-years old when out of curiosity I used GOOGLE AI to see what the minimum foot-pounds of energy was needed for pellets like the Crow Magnum, RWS Super H Point, Baracuda Hunter Extreme, etc need for expansion.

To my surprise, it had answers! And as it turns out, my (at that time) stock 392, with around 13+ FPE was below minimum by about 5 FPE (using the Crow Magnums as an example).
I just packed a bunch of plumbers putty into an empty #10 can and shot every pellet and every gun I had into it. Crow mags will expand pretty much no matter what if you hit. Their accuracy falls apart before their energy does ime. Most of my my life I hunted with a 600 fps pump 22 and crow mags.
 
Not yet. I'd thought that since Tim sent me a pic of the scope mount being fitted, he was near finished, just waiting on the pump cup from Crosman.

I promised him when I talked to him on the phone that I would try not to be one of those guys that constantly messaged/called him asking: "Is it done yet?" As of this past Friday, it's been in his hands for two full weeks, but like I said, I promised. I've been thinking of messaging him and asking 'How's it coming?' But I'm trying to convince myself to wait until this Friday...

I’d say don’t.

I’m in the same dilemma but the gent who’s doing my gun is still recuperating from a heart surgery; he’s also not young anymore.
 
I just packed a bunch of plumbers putty into an empty #10 can and shot every pellet and every gun I had into it. Crow mags will expand pretty much no matter what if you hit. Their accuracy falls apart before their energy does ime. Most of my my life I hunted with a 600 fps pump 22 and crow mags.
The Super H Points expanded really well in Play Doh, and fragmented in clay. The Crow Magnums had minor expansion in Play Doh and a chipmunk, but full expansion in clay in my stock gun. It will be interesting to see what the steroid does.
 
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I was last week-years old when out of curiosity I used GOOGLE AI to see what the minimum foot-pounds of energy was needed for pellets like the Crow Magnum, RWS Super H Point, Baracuda Hunter Extreme, etc need for expansion.

To my surprise, it had answers! And as it turns out, my (at that time) stock 392, with around 13+ FPE was below minimum by about 5 FPE (using the Crow Magnums as an example).
I've gotten expansion from .177 Varmint Knocker slugs with as low as 5fpe when shooting into water. I have pictures in the 177 for slugs thread
 
I test in wet paper. An old outdoor writer/professional hunter named Finn Aagard recommended it as a reasonable simulation of muscle tissue. Mostly I am interested in penetration. Holes that do not reach vitals don't kill well. But if you have enough penetration a wider hole could be helpful to make the target bleed out faster and minimize wasted energy if it penetrates through. I like to see a minimum of 7 to 10 magazines (at about 80 pages per magazine) for small game. If the gun and projectile don't provide that much I don't use it on game (or only on smaller game like birds).
 
The Super H Points expanded really well in Play Doh, and fragmented in clay. The Crow Magnums had minor expansion in Play Doh and a chipmunk, but full expansion in clay in my stock gun. It will be interesting to see what the steroid does.
I forgot I had these pics. The fragmented pellets are usually polymags iirc. 23 javelin, 31 nsa slugs and hybrids, crow mags, monsters, i dont think hades were out when I shot these. All 22.... id say my pics are more of maximum energy for a projectile. I want to say the gun was set 30-55 fpe at the time. There's even a gold pellet in there. The hybrids turned inside out.

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I tip from years back from our fellow British airgunners, remember they are limited in their power output,put the pellet in backwards for short range hunting....:unsure:
The old Crosman 'copperhead' wadcutter pellets were mostly OK being fired backwards for a short distance, but not so much diabolo style or current hollow point pellets.
 
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The old Crosman 'copperhead' wadcutter pellets were mostly OK being fired backwards for a short distance, but not so much diabolo style or current hollow point pellets.
Those wad cutters were my go-to when they came in the plastic belt clip boxes. Heck just a wad cutter on its own moves a lot of fluid out of the way fired correctly.