Originally Posted by NMGlocker
Winchester Ranger T
.357sig 125gr. @ 1350fps
9mm+p 127gr. @ 1250fps
You guys are saying that 100fps and 2 less grains of bullet weight make ALL the difference.
That's less than a 10% velocity increase.
With a straight face you are going to tell me that the .357sig is an "unbelievable manstopper" yet the 9mm+P is just adequate?
That must mean the standard pressure 124gr. Gold Dot @ 1150fps is downright anemic?
In your WW Ranger T comparison I think you mean the 9mm 127 gr +p+ (RA9TA Is a +p+). Which by the way leaves my G19 at just over 1200 fps. Then you are comparing it to the most anemic 357 sig. Within its pressure envelope the 357 sig can easily top 1425 fps, which is what I carry. So you are 175 fps above the 9mm operating above its design limit into +p+ designation. +p+ means it really is not defined as to cartridge pressure level. Looking at the higher velocity 124gr 9mm. Standard pressure is 1150fps, +p is 1200 fps and +p+ is 1250 fps (127gr). I really doubt those velocities can be reached out of a 4" barrel, but we will take it.
There is only 100 fps increase from 9mm to 9mm +p+. Does that make a big difference. Most would say yes. Going from the highest 9mm, 1250fps to a properly pressured 357 sig takes you 175 fps higher. Those of us who have shot 357 sigs for over 10 years do not like the trend to slow the bullet down. I am sure the 357 Ranger T is a good round, better than a 9mm. However, I generally carry a Corbon 125 JHP 357 sig which leaves my G32 at 1430fps. Although I do not have a ammo lab I have shot the WW127gr 9mm +p+ and the Cobon 125 gr 357sig through four layers of denim and gallon water jugs. There is a noticible and significant difference in energy transfer. The penetration is a little greater for the Ranger T, but the Corbon expands more.
This is not to criticize the Ranger T 127 +p+. My wife carries it in her G19. She just feels more comfortable with the milder round.