lucky gunner is a great resource. They just didn’t test Underwood.Lucky Gunner is your friend: https://www.luckygunner.com/labs/revolver-ballistics-test/
If I had to summarize all the results in one sentence, I’d say we saw a handful of .357 loads that performed about the same as a good 9mm along with a few .38s that were almost as good, minus a couple of inches of penetration. A slightly less succinct version of my commentary can be found in the video below, or keep reading for the unabridged edition.
Texas1880 wrote:
Anyone have a favorite?
158 grain LSWC here. Harder to find as new commercially loaded ammo but back in the day it was considered a police standard.
The load disappeared from the Magtech line-up, but HSM and Remington still load the stuff. I prefer HSM brass (Starline) cases to Remington and Federal plated cases because I can get more reloads out of brass
I like it because of the generous meplate and 158 grains is the bullet weight most .38 spls are calibrated for POI. With a marginal caliber I'll go for accuracy and quick follow ups---the 158 gr standard velocity provides on both counts.
The bad= empty brass has to be ejected forcefully to clear the cylinder. The short ejectors fitted to 1-7/8" barrels needs considerable momentum to do it's work.