My Glen Del buck is pretty new and I never shot from the back. So today I shot it from the back for a little off the cuff test.

I shot three weights ( 355-400-450) five times at 25 yards.

The deepest penetration 100% was the 400 grain arrow, then the 450 grain which was about 1.5 close to 2" less and then the 355 which was between 2" and 3" less.

All very close but it's again kinda interesting that the penetration meets the exact result of the calculated amounts of FPE. There is something really great about having seen this for many years and many dozens of animals. Then to drag out the tools, science and math with the calculations only to find that what I knew from experience was matched up with the engineering we have all been taught all along.

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