Thought I'd share some chrono results of various factory 45 Colt ammo. I may add to this as I chrono more loads.

Taurus 450 2" barrel

Underwood 255gr. HC Keith - 792fps 355fpe
Underwood 225gr. SCHP - 802fps 321fpe
Underwood 250gr. FMJ 680fps 256fpe
CorBon 200gr. JHP - 744fps 245fpe
Buffalo Bore 255gr. HC Keith - 760fps 327fpe
CCI Blazer 200gr. JHP - 637fps 180fpe

S&W Model 25 Mountain Gun 4" barrel

Underwood 255gr. HC Keith - 933fps 493fpe
Underwood 225gr. SCHP - 959fps 460fpe
Underwood 250gr. FMJ - 800fps 355fpe
CorBon 200gr. JHP - 977fps 423fpe
Buffalo Bore 255gr. HC Keith 907fps 465fpe
CCI Blazer 200gr. JHP - 800fps 284fpe
Speer 250gr. JHP - 617fps 211fpe
CorBon 335gr. HCFP - 809fps 487fpe
LAX Ammo 255gr. FMJ - 612fps 212fpe

Ruger Blackhawk/Redhawk 5.5" barrel

Underwood 255gr. Keith - 1037fps 609fpe
Underwood 225gr. SCHP - 1049fps 550fpe
Underwood 250gr. FMJ - 961fps 512fpe
Underwood 325gr. HCFP - 1373fps 1360fpe
Buffalo Bore 255gr. HC Keith - 1024fps 593fpe
CCI Blazer 200gr. JHP - 961fps 410fpe
Speer 250gr. JHP - 735fps 300fpe
CorBon 335gr. HCFP - 947fps 667fpe
LAX Ammo 255gr. FMJ - 710fps 285fpe
PMC 300gr. JSP - 1104fps 811fpe
HSM 325gr. HCFP - 1136fps 931fpe

Hey EddiePa, thanks for this. It's cool info. I am in eh process of doing the same thing with all of my TC barrels and sporting rifles. But I'm doing it with my hand loads. Did I say all? It's a lot of work and documentation but lots of fun and very revealing. I now wish I would've kept all of my MV load data as I was developing them the first time.

I wish more ppl would post their results online... just as long as the data is safe it helps ten fold...


Thanks Again....

My pleasure, guys.

And there's folks who'll swear that a couple of inches of barrel one way or the other doesn't matter in a wheelgun....

Numbers never lie, good info!

I have a 7.5" Ruger Super Redhawk in 454 Casull that I could run a few 45 Colt loads through for comparison sake, but I have found the gap the bullet must jump in the longer cylinder can bleed off gases and negate the additional barrel length.

I know some velocity may be gained but we can't say that all the difference here is a gain due to barrel length. Cylinder gap, throat and barrel dimension, and forcing cone spec.s can all effect velocity.

True, but those variations are relatively minute compared to the length of steel that the explosive gasses are able to utilize to propel a projectile.

Just a suggestion, but do you think you could try out some of those Hornady Leverevolution loads?

I can add a couple. Only have one 45 Colt only Gun, and only a few factory, as I bought them for the brass. Until I was able to buy brass only. Rather than debate the minutia of gap, length chamber etc, I think the results might help folks see the bigger picture of whether a load is a full throttle, downloaded cowboy type etc. Great idea, Eddie.

Colt 7.5" New Frontier

Federal American Eagle 225 JSP 950 fps
Barnes 200 XPB 1083 fps
Winchester Cowboy 250 LRN 783 fps

Craig

Thanks for contributing, Craig!

Does anyone have the same info for a 44 mag and 357 mag?

http://ballisticsbytheinch.com/45colt.html

This site, Ballistics by the inch, has great info. They don't have as many loads tested as you have here, but they do have info on a bunch of different rounds including the .44 and .357 redhawk was looking for.

They test two different ways, one is to take real guns and shoot them, the other is to take a t/c with an 18 inch barrel and test that then cut an inch off, and test again, all the way down to two inches. The graph on the ft/lbs really shows the hook when you get under 5 inches.

She might love you, but if she tells you size doesn't matter, she is lying to you.

db