That’s the biggest reason I may or may not have opted for a Rock. Super pleased I may or may not have. Oh, and I sold a 1911 not too long after. One of two I’ve sold my entire life.
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i’m pretty sure that those are still pretty lethal rounds… 
im curious, what type / model 1911 did you sell?
Compact, my hands aren’t what they used to be. It needed a recoil spring rpl.
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Finally got some range time with a box of the Hornady 5.7 CD…
Overall impression is good, cycled well, accuracy at least as good as I’m accustomed to.
But I did notice some unusual characteristics of the spent cartridge. After firing a few rounds, I’d pick up the hot shells and do a visual inspection. No neck damage was found in about ten rounds inspected, but the hot cartridge had a stickiness to it and a general roughness around the neck. (I have not noticed this with other brands).
Once I got to the bench and was able to examine the casings further, it became clear the roughness was due to the case coatings that wasn’t present before firing.
Finally, when cleaning the bore, I removed what looked like pieces of plastic. IDK, but it seems like part of the coating… in all fairness though, I did shoot Fiocchi Range Dynamics, FN SS197SR and Speer Gold Dot along with the CD. So I can’t say unequivocally the “plastic” came from the CD round but with the other stuff I observed, it sure seems likely.
Anyway, couple pics included below… comments, thoughts, ideas welcome and appreciated.
ah, well i mean more of make and model, but i agree im not a fan of compact 1911s usually. i tend to be a 5 inch purist, however the 4.25’s have grown on me as of late.
3.125”
More info on the “plastic” found in the bore:
I was taking some close-ups of neck expansion and noticed what appears to be excess coating on the casing. It is on about half of the non-fired rounds.
The “stickiness” might be due to the coating not being cured as long as others. I, personally, haven’t experienced this, but Jay from Elite Ammunition says that (his experience) the coating needs time to cure and get “hard.” A batch of brass, apparently, which hasn’t cured quite long enough will end up being a bit soft and may get tacky under the heat of firing. His speculation was that the ammo was built and sent out to meet consumer demand before it had quite cured as long as it should have.
Peace favor your sword,
Kirk
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