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What caliber for shooting sports?

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Toster:
Ok, I have been looking at a new STI Trojan for some time now.  8)  I would like to shot both the IDPA, and IPSC events, probably not every week but when I can. My big dilemma is what caliber to get.  I have dies for 9mm, .40, & .45 ACP, also lots of brass for all as well.  I know you have to make a major power factor in order to shoot some of the classes; I just don?t know what caliber will give me the greatest flexibility in the shooting sports, and what classes I will be able to shoot. HELP! 

FLUFF:
I'd go with the 9mm just for the price of the ammo.
you can load 9mm for half the price of the others.

I'm not sure about the power factor, but I think with a 147Gr bullet the 9mm might make the limit ????

FLUFF

JimP:

--- Quote from: FLUFF on November 25, 2009, 12:51:12 PM ---I'd go with the 9mm just for the price of the ammo.
you can load 9mm for half the price of the others.


FLUFF

Savings are actually better on .45 ACP, percentage wise...... but you can load the same number of 9mm for less than .45 ACP..... for awhile anyways: .45 ACP operates at much lower pressures than 9mm, so I would guess 9mm brass will wear out.  I have .45 ACP brass that has been shot and reloaded so many times that you can barely read the headstamps, but only a few of the nickel plate cases have cracked.  Some of those are from the first box of pistol ammo I bought.  Some of them I found in the trash at the range (no telling how many times they have been loaded.  I dont know how long 9mm brass will last- I haven't shot any of it more than once.

--- End quote ---

Chris Z:
A .40

9mm cannot be used as a major caliber gun in IDPA or IPSC (unless shooting IPSC Open division, and you will really be pushing the envelope)

.45 is TOO SLOW for IPSC unless you are shooting in the single stack division where everyone is slow!

David Hineline:
I guess I would say go with 40 short and weak.  In IDPA capacity loss will not matter because they do not think magazines hold more than 10rnds. In IPSC this will make major caliber score without having to goto a full blown race gun, which you then could not use in IDPA, you will loose a bit of capacity compared to a 9mm in IPSC but still good high caps available.  Check the IDPA website rule book cause they have many rules as to what you can/can't do to modify your gun.  I shoot IDPA in stock service pistol, in 9mm and Combat Defense Pistol in 45 and I shoot the 45 in IPSC but not so much anymore due to IDPA shoots being closer in miles.  I tried unlimited with optics but turned out that is not my cup of tea.

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