5,000 fps coyote rifle?

[codyadams]

I'm guessing you don't really care about the practicality... sounds interesting though.

No, zero, none at all ha ha. Not for this idea....

I think if I end up doing it, I'm just going to start off by buying 2 barrels, and have them both chambered at the same time for my savage. It is very likely that after figuring out what components it would take to get the best performance, the barrel may be torched or nearing the end of it's life. I can just change the other one out, do a quick work-up for the new barrel, and be good to go for another few hundred rounds.

 

[elkaholic]

We talked about this a few months ago too ha ha what about a 22 ss? With the light short bullets, would a 22 max fit in a Savage short action (2.975" OAL)? The bullets are little, so they won't stick much out of the case mouth. I only ask because I have one laying around I'm doing nothing with at the moment....

we'd have to set one up but I think it might

 

[elkaholic]

we'd have to set one up but I think it might

If not, the ss would fit for sure

 

[elkaholic]

22 wsm. 34 inch barrel, 44 gr hammer hunter. quickload 4750-4800 with a couple powders h-1000 being best. powder bridging might be a problem though. don't have the newest update but maybe ramshot lrt might be a better choice

If H1000 shows best then N565 should better. Same burn rate but more dense and more energy!

 

[bigngreen]

If your wanting to save fur I don't know but I think I'd be looking to try to blow the bullet up in the coyote, I've ran light TTSX Barnes in Magnums for coyotes and it BLOWS them up, I'm pretty handy at sewing holes in coyotes but sewing halves back together is rough!!

 

[can1010]

you might be right, but I don't have the newest update and N565 is not in this one.
Ragged Hole Barrel has a 223-300 wsm reamer and a 12 twist barrel. you could experiment pretty cheap

 

[JJMoody]

Does this project make anyone else giggle just a little bit??

 

[Slick8]

I think a wsm would be a good starting point. I also feel like you may have better luck with a hot 6 mono in the 60-70 range.

I would stay away from anything improved which would need fire forming as you just don't have the barrel life.

Perhaps a 26 nosler necked down to 22 or 6mil....

Just spit balling Cody, no expedience here.

 

[codyadams]

If your wanting to save fur I don't know but I think I'd be looking to try to blow the bullet up in the coyote, I've ran light TTSX Barnes in Magnums for coyotes and it BLOWS them up, I'm pretty handy at sewing holes in coyotes but sewing halves back together is rough!!

Hahaha no I don't care about fur at all, not sure if a 44 grain bullet would do it, but if I could make 1 coyote turn into 2 pieces that would be just fantastic.....

 

[Slick8]

Does this project make anyone else giggle just a little bit??

No but...

 

[J E Custom]

I know the "light and fast" isn't the best method for extreme long range, but that isn't what this is about. This is about hitting 5000 fps or dang close for having the farthest possible aim on fur range. Also, getting stupid fast speeds, just because. I would like to discuss how to get to 5000 fps. Also, I know it has already been done. Also, I know that barrel life will likely be 500-700 rounds. Maybe even less. Don't care. This also isn't going to be a 1000 yard rifle with these light bullets. I want 400+ yards of coyote point blank range, the more the better. I'm going to develop a load, zero it, and every shot fired after that will hopefully kill a coyote. Now that we got that out of the way....

In the coyote hunting I have done, if I have missed a shot it was for one of two reasons. Either I misjudged the range and hit high/low using my .223, or it took me too long trying to range a dog and put the dope in my rifle, and they moved off. The best results I have had has been with my 22-250 using 40 grain v-max pills around 4000 fps, zeroed at 300 yards, I could aim on fur out to about 350 or so on a dog. I would like to make that even farther.

This will be with a 22 cal, I think going up to 6mm will require a good bit more cartridge to get there, and going town to 20 cal or 17 takes away some energy potential. I want to use the 44 grain hammer hunter, as a mono it should hold together just fine and will do a number to coyotes. I plan on HBN coating these, maybe squeeze a little more speed out and hopefully improve the already short barrel life.

My initial thought is a 22-243 improved, quality brass is plentiful. But then I figured, it would be easier to put together a 22-284 and get a little more capacity, but would that even be big enough? Possibly a 22-284 improved? With proper powders and a 30" barrel of the proper twist, would 5,000 fps be attainable with an HBN coated 44 grain hammer?

What are thoughts? Any other ideas on how to get a 44 grain pill to 5,000 fps?

There is another issue when trying to go that fast. The bullets themselves have a problem with jackets and balance at High rotational/RPM speeds.

I did an experiment with high velocity .224 diameter cartridges and this is what I found.

I improved a 223 WSSM and was able to get 4300 to 4400 ft/sec without to many problems. As I up the velocity, I started destroying different brands and stiles of bullets. Accuracy went out the window and at close range the target would be riddled with holes after only one shot. Instability was one of the things I discovered and jacket loss was common with some bullets starting around 4300 ft/sec. I then switch to Mono metal bullets and found the centrifugal balance caused poor accuracy at the velocity I was trying to reach.

I even slowed down the twist rate to 1 in 16'' and found that this helped save some bullets. I managed to exceed 4650 without pressure signs, but found only a couple of jacketed bullets that could handle the stress of that speed and still be accurate. I even machined some solid bullets without the hollow points, (I also discovered that with high rotational forces the hollow points would actually open up enough to effect accuracy.

Like everything else, there seems to be a limit to what you can do with the lightweight 22 cal bullets. My fastest accuracy load for the little WSSM ended up at 4628 ft/sec, at that point accuracy began to fall off as velocity increased.

There are .224 diameter bullets that are designed for 22 250 and 220 swift that will survive at their velocities and a little more. (These were the best bullets that I found for the little hot rod).

Not that it is impossible with the smaller caliber bullets, but I don't think it is practical
because of bullet problems and it will definitely shorten barrel life. (More likely to be around 500 rounds max before accuracy goes away.

The 22/250 AI or the 220 swift should get you in the ballpark of what you need with little or no problems, so that would be my recommendation for performance, loading, dies and accuracy.

Just my opinion

J E CUSTOM

 

[IdahoCTD]

I did a 6WSM and shot 105's over 3600fps in a 28" barrel with Retumbo. I'm sure R-33 or N-570 would better that but I would bet a 55gr would absolutely scream. I would bet a 22 saum or SS would be in the upper 4000's with light bullets.

 

[just country]

morning, what bullet will hold together at that FPS?
justme gbot tum

 

[Forcedoutage]

I don't think 4600-4800 would be too far out reach with a 30" barrel and the right combination of bullet and powder out of something like a 22 Max. Just have to put in the time and work to find the right combo. I would def look at a slower twist and do some stability homework at those velocities.