Good day all you airgunners!
Over a year ago Giles posted his Airgun Pellet Speed Power Test on AirgunForums.co.uk and many found that information useful. However, having recently found that it has been either moved or removed, I have an idea for some testing and wondered if anyone would find it interesting.
My thought is to test a variety of pellets for hardness and damage ability. I'd be measuring length, smacking them in some standard way, then measuring again to see deformation. Afterwards, I'd like to fire them into clay and see what the wound channel looks like and compare that to how hard/soft the pellet is.
The tripping point I have is which gun(s) to use for the clay test. It/they should be popular and widely available to the public. Appeasing everyone at this step of the game is going to be impossible. Especially with laws varying wildly from country to country. This has lead me to narrow my scope into two classifications - what is known in the UK as sub-12 and FAC power levels.
The first class (sub-12 FPE) is fairly easy to replicate with a variety of guns. However, high power FAC levels opens up a whole can of worms (so to speak).
What velocity or FPE would be the most common for FAC class rifles in the popular calibers (.177, .22, and .25)?
Thank you for your input,
~Mondo
Over a year ago Giles posted his Airgun Pellet Speed Power Test on AirgunForums.co.uk and many found that information useful. However, having recently found that it has been either moved or removed, I have an idea for some testing and wondered if anyone would find it interesting.
My thought is to test a variety of pellets for hardness and damage ability. I'd be measuring length, smacking them in some standard way, then measuring again to see deformation. Afterwards, I'd like to fire them into clay and see what the wound channel looks like and compare that to how hard/soft the pellet is.
The tripping point I have is which gun(s) to use for the clay test. It/they should be popular and widely available to the public. Appeasing everyone at this step of the game is going to be impossible. Especially with laws varying wildly from country to country. This has lead me to narrow my scope into two classifications - what is known in the UK as sub-12 and FAC power levels.
The first class (sub-12 FPE) is fairly easy to replicate with a variety of guns. However, high power FAC levels opens up a whole can of worms (so to speak).
What velocity or FPE would be the most common for FAC class rifles in the popular calibers (.177, .22, and .25)?
Thank you for your input,
~Mondo
To give you an idea of what I've come up with, here's a sampling of "junk" ammo that I've picked up off the ground over the last summer from my shooting range. No idea what make/model each is. Just messing around and developing my strategy.
.
Equipment:
5"x5"x3/16" steel plate
24"x3/4" PVC pipe
50 gram weight
Procedure:
Position ammo on plate and drop weight through PVC onto ammo.
Length of ammo prior and post impact:
.177
6.38 > 4.62 (72.4%) -27.6%
6.29 > 5.17 (82.1%) -17.9%
5.52 > 4.17 (75.5%) -24.5%
.22
6.78 > 6.14 (90.5%) -9.5%
6.55 > 5.67 (86.5%) -13.5%
8.70 > 8.32 (95.6%) -4.4%
8.64 > 7.62 (88.1%) -11.9%
.25
7.14 > 6.99 (97.8%) -2.2%
9.80 > 9.44 (96.3%) -3.7%
8.34 > 8.26 (99.0%) -1.0%
Next is to perform this test on known brand ammo followed by shooting into clay block)
.
Equipment:
5"x5"x3/16" steel plate
24"x3/4" PVC pipe
50 gram weight
Procedure:
Position ammo on plate and drop weight through PVC onto ammo.
Length of ammo prior and post impact:
.177
6.38 > 4.62 (72.4%) -27.6%
6.29 > 5.17 (82.1%) -17.9%
5.52 > 4.17 (75.5%) -24.5%
.22
6.78 > 6.14 (90.5%) -9.5%
6.55 > 5.67 (86.5%) -13.5%
8.70 > 8.32 (95.6%) -4.4%
8.64 > 7.62 (88.1%) -11.9%
.25
7.14 > 6.99 (97.8%) -2.2%
9.80 > 9.44 (96.3%) -3.7%
8.34 > 8.26 (99.0%) -1.0%
Next is to perform this test on known brand ammo followed by shooting into clay block)
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