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That really depends on the load itself for each of the calibers. In general the heavier loads keep their energy better at longer distances. For example Federal's hunting Cast-Core loads for 357M, 41M, and 44M all have the same velocity and keep all the same velocity at the same ranges. The 357M has about 650ft/lbs of energy, the 41M has about 850ft/lbs and the 44M has about 1050ft/lbs. For comparison sake though, the 357M with the same length barrel tested as the other two would have about 750ft/lbs. So, simply put all three of these rounds in comparable loads and weights in relation to caliber keep the same velocity at range. The larger calibers keep their energy at distance, not because of impact velocity but because of the heavier weight of their bullets. So basically a 180gr. 357Mag load going 1250fps at the muzzle will have the same velocity at 100yards as a 300gr. 44M load also going 1250fps at the muzzle.
cje1980,
I can see that you are one of those people who believes what they read on the side of the ammuntion box or on the manufacturer's website. I also went to Federal's website and read the same information that you did.
For those who want to see what we saw goto the following link, choose "centerfire pistol", wait for the page to reload and then under bullet type, choose "castcore". This will give you the three loads discussed above. Check the ballistics to see the cookie cutter ballistics we are discussing.
http://www.federalcartridge.com/defa...pg=27&firearm=
Doesn't it seem odd that for all three calibers and at each of the same ranges the numbers are exactly the same? Anyone who has used a chronograph before can tell you that using any factory ammunition you rarely see the same velocity come up between shots of the same caliber, let alone three different calibers over the span of 4 different range measurements. Hmmm, can we cry B.S. now or what?!?!?!?
Now on to the .357 and .44 discussion...
Gunandammo.com has an interesting article about the .44 magnum that has some relevant information about this conversation.
http://www.gunsandammomag.com/ammunition/fifty_101105/
.44mag
P.S. I carry a 4" .44 magnum tracker loaded with 250 gr Keith's @ 1200fps every day for CCW. I wear light shirts and shorts to work. Who says a .44 magnum isn't effective for CCW or SD? I guarantee if they were 3 feet from me they still wouldn't know I was carrying a "hunting pistol for CCW".
Just my thoughts, good luck everyone, enjoy what you shoot.