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AR15.COM
1/10/2011 6:12:31 AM EDT
Which is harder on an autopistol?
Assuming  a 1911 type pistol, which will wear it out faster/bit sreak it sooner. A light fast moving bullet or a heavier bullet at a lower velocity? Assuming both rounds are loaded at near max pressure levels.
You can use these two loads as an example if it is easier.

cal. 38 super, 24lb recoil spring
round 1, 125gr FMJ @ 1300fps, chamber pressure 32k
round 2, 165gr SWC @ 1050fps, chamber pressure 32k
1/10/2011 7:05:46 AM EDT
[#1]
If you can afford the amount of ammo needed you can afford the barrel.

Powder is another var along with bullet type and your ROF.

All the 38 cal shooters I know run 125 or 124 around 1350 or above.  More "gas" works the comp better.
1/10/2011 8:27:37 AM EDT
[#2]
Quoted:
Which is harder on an autopistol?
Assuming  a 1911 type pistol, which will wear it out faster/bit sreak it sooner. A light fast moving bullet or a heavier bullet at a lower velocity? Assuming both rounds are loaded at near max pressure levels.
You can use these two loads as an example if it is easier.

cal. 38 super, 24lb recoil spring
round 1, 125gr FMJ @ 1300fps, chamber pressure 32k
round 2, 165gr SWC @ 1050fps, chamber pressure 32k



Answer is........................................................................................................................it depends on how well made the gun is.
1/10/2011 8:37:37 AM EDT
[#3]
my 9 suports a 10 lb recoil spring. 125/124 at 1380fps, hs6 powder, 9mm x 19 brass.