.22 Magnum

[reddog]

Why would a 17 hmr be more accurate than a 22 magnum ? Maybe "your" 17 hmr is much,much more accurate than "your" 22 mag, but I dont think across the board, there should be a difference..... should there? Dont get me wrong, I love my Hummer, but I also have 3 22 mags, and I dont think there a difference in the accuracy column.

[AllenW]

Not sure either way, but isn't the 17 a jacketed bullet?
Maybe that makes a difference???????

Al

Accuracy is not a function of the "factory" bullet as much as it's the rifle and the shooter.

The .22 mag has great punch at longer distances. Right about 75 yards the speedy .17 goes in the terlet by comparison overall.

[AllenW]

Originally Posted by noah cantell

Accuracy is not a function of the "factory" bullet as much as it's the rifle and the shooter.

The .22 mag has great punch at longer distances. Right about 75 yards the speedy .17 goes in the terlet by comparison overall.

Don't think threr's a difference between jacketed and unjacketed bullets?

No so sure here.

Al...who's not rediculous, just wondering.

I've got 4 diff brands on hand. Do "they" make un-jacketed .22 mag ammo? I think the copper jacket allows better shot to shot consistency and easier cleaning. In the overall process those are both a part of accuracy I suppose.

[beeman]

now that's banging

[Esoxchaser]

The 17 hmr was designed from it's innception to be an accurate round. It is manufactured to much tighter tolerances than the .22 family. From Chuck Hawkes:

In developing the .17 HMR, Hornady was aided by rifle makers Marlin and Ruger. Together they were seeking the highest velocity possible in a rimfire cartridge consistent with reliability, accuracy, and reasonable manufacturing economy. The .17 HMR was designed to outperform the .22 WMR in velocity and trajectory, and be less susceptible to wind drift. It was also to have a similar maximum range, no greater noise level, be less susceptible to ricochet, and operate at the same pressure. All this in a cartridge designed to meet an intrinsic accuracy standard of 1 minute of angle (MOA) or better.

http://www.chuckhawks.com/17HMR.htm

[Esoxchaser]

Originally Posted by noah cantell

Accuracy is not a function of the "factory" bullet as much as it's the rifle and the shooter.

No, accuracy is also a function of the consistency of the load, which historically with mass produced rimfire .22 ammunition can vary widely from round to round even in the same box. Chrono a box of the usual off the shelf .22 ammunition and you will find a disparity of several hundreds of feet per second between the hottest and slowest rounds in the box. Add to that the lengths that typically vary by several thousandths per round making consistent accurate head spacing an impossible task and you have an round that is inherently not very accurate.

Originally Posted by noah cantell

The .22 mag has great punch at longer distances. Right about 75 yards the speedy .17 goes in the terlet by comparison overall.

I don't know where you get your numbers, but this is what real world testing had found, again from Chuck Hawkes:

• .17 HMR, 17 grain V-Max = ME 245 ft. lbs., 185 ft. lbs. at 50 yards, 136 ft. lbs. at 100 yards, 99 ft. lbs. at 150 yards, 72 ft. lbs. at 200 yards.
• .17 HMR, 20 grain XTP = ME 250 ft. lbs., 187 ft. lbs. at 50 yards, 137 ft. lbs. at 100 yards, 99 ft. lbs. at 150 yards, 72 ft. lbs. at 200 yards.
• .22 WMR, 30 grain TNT = ME 325 ft. lbs., 200 ft. lbs. at 50 yards, 120 ft. lbs. at 100 yards, 80 ft. lbs. at 150 yards.
• .22 WMR, 40 grain JHP = ME 324 ft. lbs., 230 ft. lbs. at 50 yards, 162 ft. lbs. at 100 yards.

Note that the .22WMR wasn't even tested at 200 yards, as that is so far beyond it's MPBR that there is no point in even checking.....

Let folks decide for themselves. I still say the .17 is faster. But the .22 Mag has more knock down at any practical distance.


http://www.chuckhawks.com/compared_17HMR_22WMR.htm

[Esoxchaser]

If you consider 100 yards your "practical distance" you would be correct.