Re: 22-250 for heavier bullets?
It is my opinion that with the frontal area of the .224 bullets and the low expansion rate of match bullets at teh velocities they are going at 600 yards and beyond that the 22-250 AI is what I recommend for starting point for a dedicated chuck rifle to be used at 600 yards and beyond.
Can others be used, of course, but if your building a rifle for such a task, why would you build somthing that may work most of the time instead of something that will work all of the time if you do your job?
Comparing a .452" bullet with 520 ft/lbs of energy to a .224" bullet with the same energy is nto a good comparision at all.
Even using your example, shoot a chuck in the guts at 5 yards and tell me if it will make it back to its den to die a slow death, YES it will, everytime, it also will do the same with an 80 gr JLK bullet with 520 ft/lbs of energy if hit poorly.
Sure, you hit the head or chest then you will get a kill, if you hit on the fringes with a 22-250 at 600 yards with these bullets, you will loose the chuck to its den nearly every time.
This is no opinion, this is from experience in the field from myself and from watching dozens of my hunting partners and customers.
Not to mention, it is difficult to even see a clear impact point with an 80 gr bullet at 800 yards. Which is only a problem is you miss once in a while which I am sure no one here ever does, I certainly never do! [img]images/icons/grin.gif[/img]
I still stand by my opinion, the 22-250 will work but there are dozens of rounds that will vastly out perform it for this type of hunting.
All you have to do it honestly use the 22-250 at 600-800 yards and you will see this as well. Numbers on paper and comparing those numbers to big bore handguns means nothing on the chuck hill.
Chucks are killed at long range by the following:
1. Solid hits
2. Tissue Damage
The solid hits are easy, relatively that is. The tissue damage is the problem. To get a bullet that will open up fast enough to expand inside a chuck is difficult. Most match bullets will not expand much if any. Most of their damage is done when bone is struck adn the bone itself becomes secondary projectiles destroying a large amount of tissue.
If hit in soft tissue, the match bullets will simply pass through chuck without doing enough damage to stop them on impact.
To get a bullet that will expand this quickly, you need a tipped bullet such as the A-Max which is vastly better then the other match bullets but still it does not expand nearly as fast as the varmint designed tipped bullets like the Ballistic Tip, V-Max and Blitzking.
Still these will not cut the mustard at extreme range so we need enough velocity and energy in the A-Max to work effectively on chuck size targets.
If you can score heads shots all the time at 800 yards I am wasting my print on you as youare beyond my level of expertise and I apologize for wasting your time and mine as well.
I firmly stand by my original comment, I see the 22-250 AI with 75 gr A-Max bullets driven to top levels as minimum for chuck hunting out to 600 yards and beyond if you want any sort of consistant performance on target.
Hell at 800-1000 yards, I have flipped chucks several feet in the air with my 6mm-284 launching the 107 gr Mk at 3500 fps only to have then hit the ground running since the 107 r Mk did not open up enough to cause severe tissue damage.
Where as I have hit chucks at the same ranges with a 100 gr Ballistic Tip out of a 25-06 driven to 3450 fps and they flat out came apart, literally.
The energy was far less with the 25-06 compared to the very efficent and much faster 107 gr 6mm bullet. Why does the 25 perform better then, Frontal area and explosive expansion, pure and simple.
This is where all 224 rounds suffer at extreme range, no way around it for game performance.
Again this is not opinion, its what I have witnessed in the field. If you think it is enough power for this use, then by all means do what you do. I am just relating what I have see first hand several dozens of times.
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