Please see a recent article/review of some of the available 44 Special defensive ammo on the market.
I'm not surprised the lead offerings from Underwood and Federal didn't do well. But I'd have thought the Double Tap would have done much better. Also note the reported muzzle velocity for the SIG ammo. Yikes.
https://www.americanrifleman.org/art...ial-cartridge/
Sent from my SM-G930P using Tapatalk