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Old 10-18-2021, 03:23 AM
Hunter2011

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FPE vs caliber



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I just want to get some basics sorted out.
I am shooting for so long but I am not 100% sure about this.
Lets say you have only 2 air rifles.
Firstly .22 running at 12 fpe and secondly a .177 running at 20 fpe.
Shooting at tough large wood pigeons. Which of the two should give the quickest most ethical kills?
Lets say this question goes only about ensuring quick clean kills and that the benefit of the .177 over the .22 regarding trajectory should not factor in the answer.
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Old 10-18-2021, 05:35 AM
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Essentially the one that will give the cleanest kill is the one with which you can consistently place the pellet in the critical area with maximum precision.
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Old 10-18-2021, 07:54 AM
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Essentially the one that will give the cleanest kill is the one with which you can consistently place the pellet in the critical area with maximum precision.
This...accuracy is king, my new Daystate Huntsman Revere is only about 40 FPE, my Avenger .22 with a heavy slug will hit 50 FPE but the Huntsman is a bit more accurate.
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Old 10-18-2021, 07:59 AM
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I'm with Rockdrill Hunter. Shot placement is everything. Whichever caliber you are most accurate with over the intended distances is the right choice for you.

We get into into these same gedankenexperiments with .45 ACP vs. 9 MM pistols. "Is the bigger slower pill better than the smaller faster pill?" Accurate shot placement is always the correct answer.

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Old 10-18-2021, 08:40 AM
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I agree, regarding accuracy being king. Assuming that both rifles are equally accurate, my answer would be the .177 (10.5grn pellet at 900+ fps), when distances are greater than 30yds. However, I would probably lean toward the slower, 22 cal (15grn pellet at 600fps), where distances were inside 30yds.
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Old 10-18-2021, 08:58 AM
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This...accuracy is king, my new Daystate Huntsman Revere is only about 40 FPE, my Avenger .22 with a heavy slug will hit 50 FPE but the Huntsman is a bit more accurate.
I could not agree more.
Even a 5 FPE .177 in the brain is all that is needed. No arguments there
I should have added that lets say accuracy is the same for both.
Which still holds the trump card? The .177 shooting with 66% more power, or the less powerful but bigger .22 pellet? Ie is a bigger pellet doing more damage than a smaller diameter pellet, even with much less power? Or does the 66% more power of the smaller pellet more than makes up for its smaller size?
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Old 10-18-2021, 09:47 AM
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With a brain shot the smaller faster should be great, I guess an argument could be made for both theories. Squirrels smacked with 900fps 26gr. .22 Slugs react the same as those hit with a 800 fps 33gr. .25 pellets so far, have some slugs coming for the .25 so we'll see how they do.
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Old 10-18-2021, 10:07 AM
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Quote:
Originally Posted by Chickenhater View Post
I agree, regarding accuracy being king. Assuming that both rifles are equally accurate, my answer would be the .177 (10.5grn pellet at 900+ fps), when distances are greater than 30yds. However, I would probably lean toward the slower, 22 cal (15grn pellet at 600fps), where distances were inside 30yds.
Agreed, and as you note, variables of distance and shot placement could give advantage to either caliber.

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With a brain shot the smaller faster should be great, I guess an argument could be made for both theories. Squirrels smacked with 900fps 26gr. .22 Slugs react the same as those hit with a 800 fps 33gr. .25 pellets so far, have some slugs coming for the .25 so we'll see how they do.
Also agreed. Trying to punch through wing feathers could give advantage to the .22 or maybe the .177 could sneak through easier to the engine compartment? In a general sense I don't think there's a finite answer.

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Old 10-18-2021, 10:38 AM
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Agreed, and as you note, variables of distance and shot placement could give advantage to either caliber.



Also agreed. Trying to punch through wing feathers could give advantage to the .22 or maybe the .177 could sneak through easier to the engine compartment? In a general sense I don't think there's a finite answer.

Frank
Thanks for the nice photo. I can practice head shots now
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Old 10-18-2021, 11:31 AM
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The 'birds eye' makes a fine aiming point, for either caliber.
Note that the 'power figures' change with distance so if the .177 is '66%' more just off the muzzle it wont be at 20yards out. Id look at the power factor within my typical self limitation for how far I would shoot (ie, can group well enough to make a clean shot on the game tried for) just to know because Im a curious fellow.
Penetration to 'where the beast lives' is the determining thing. A well placed shot that doesnt get there will do damage, but not the kind we want, drt.
For hunting I tend to favor a larger caliber give a choice, in firearms, shot sizes, air-guns. Personal pref, I know many do well with their 'high-speed needles', I like a 'slow-speed brick'.
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Old 10-18-2021, 01:32 PM
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Old 10-18-2021, 01:36 PM
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Frank Frank Frank Frank Frank

Frank
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Old 10-18-2021, 01:46 PM
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a couple other targets.


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  #14  
Old 10-18-2021, 02:46 PM
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Nice.
My favorite target is a lot of small 5mm yellow dots I print on A4 paper. Maybe boring and simple, but effective. As long as I can hit them, I am happy and confident in my equipment.
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Old 10-19-2021, 05:49 AM
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This is what I like to use as a target.
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