Coyote Rifles

Glock-a-maniac said:
The problem I've always had with light light bullets is wind drift and that bullet weighs 55gr. I can't imagine what a 32gr bullet would do when winds are full value.
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Glock, wouldn't bullet weight be of little significance in determining wind drift as long as the two bullets have the same BC and start off at the same velocity? Energy would be a different story altogether.
 
take this into consideration; a 32gr vs a 300gr but with the same BC. We'll even give the 32gr bullet a headstart with 1000fps quicker velocity. Now add wind at full value from 3 or 9 oclock. I garanty the heavier bullet won't drift nearly as much. Also bullet drop is greatly increased by the lack of weight of a bullet. Now those two bullets were at total opposite sides of the spectrum but BC isn't as much of a factor as some might think.
 
Sorry for the thread hi-jack.

Gents, are you trying to tell me that a 155 gr .308 bullet will drift less in the wind than a 140gr bullet from a 6.5 given the same starting velocity for both and similar bullet design shapes simply because the .308 bullet is heavier?
 
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Glock-a-maniac said:
take this into consideration; a 32gr vs a 300gr but with the same BC. We'll even give the 32gr bullet a headstart with 1000fps quicker velocity. Now add wind at full value from 3 or 9 oclock. I garanty the heavier bullet won't drift nearly as much. Also bullet drop is greatly increased by the lack of weight of a bullet. Now those two bullets were at total opposite sides of the spectrum but BC isn't as much of a factor as some might think.
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bull ####. Drift and drop have everything to do with BC and nothing to do with weight (excepting that heavier bullets tend to have a better BC).

If you found some magical 32 grain bullet with the same BC as a 300 grain .338, it would fly EXACTLY the same. Given 1000fps headstart, it would drift and drop significantly LESS than the 300 grainer.

Now, BC isn't a perfect indicator as the commonly stated 'BC' is a g1 drag coefficient - which essentially means you're comparing your bullet to a reference bullet with a round nose design. I believe that the G1 reference (1.0) is a 1" diameter bullet weighing 1lb, with a round nose flat base profile.

Nevertheless, if both the 32 grainer and 300 grainer have the same shape and the same BC (which is impossible, but for the sake of argument we'll assume that they do) then they will indeed produce identical ballistics when launched at identical speeds.
 
Thanks for all the great advice, it will make these next 2 gun shows more fun.... Sorry to stir up so much sh*t .... sounds like it's a good thing some of you fellas are a few provinces apart!!! Greg. kinda sounds like Jack O'Conor debating Elmer Keith
 
We don't have coyotes this far north, but a pal of mine down south is an ardent coyote shooter and pretty much swears by a .22-250 or his 6mm. Me, I know something about shooting in the wind and I'm not so concerned about pelts, so I'd look for something like a .270, and if I lived in coyote country I'd have an excuse for a 6.5-284.
 
You know, this is really what the forums are all about. I like the fact that we all don't have the same opinion because it makes us go in search of answers. I happen to have the exbal program now and will look this up. I can appreciate a knowledge based debate and will come up with information for or against my own opinion. Stay tuned.
 
NOTHING wrong with using a .223 on yotes.

The best coyote caller/hunter I ever hunted with used a .222 to great effect up to 200 yards.

I used a 22-250 but would not feel I was giving anything up using a .223, especually with good handloads.
 
I tried to do a comparison on heavy bullets vs light bullets to find out which would drift more in the wind and it was impossible based on weight because the all of the light bullets had terrible BC in comparison to heavier bullets.
 
Yes....that's the general consensus when comparing bullets of the same dia. But it's not written in stone. When I competed here in NB in M/TR class there were many who used the Sierra 175 MK because of it's weight and BC....it's a good bullet in the .308 for 900m shooting but one has to push it hard. Then, Peter Dobson suggested I try the Lapua Scenar 154 match bullets which actually had a higher BC than the Sierra's. At distance, the difference was immediate. The bullets, although lighter and of course faster and due to their ogive shape and interior design, maintained that speed over a longer distance than others of the same weight. The Lapua 154 is, by far, superior to the Sierra 175 MK for long range shooting and really brings the .308 into it's own.

So, although heavy, high BC bullets (a long range bullet doesn't just need weight...it needs an aerodynamic shape) are usually better at distance than their lighter counterparts OF THE SAME DIAMETER, it is not written in stone.

Experimenting with different bullet weights and designs in the same cartridge, at distance and under conditions, is what will determine what's best.

And oh, did I mention that I like the 17Rem? I see that the Rem 700 SPS is being offered in 17 Rem Fireball.....might be a new predator rifle in my safe in the not too distant future!:)
 
Some numbers I had on hand from when I was doing research on a custom build. I read alot of litterature and the general consensus was bullet weight had nothing to do with how good it preformed in the wind. I can't find my charts but a 39gr blitz king out of a .204 did better in the wind than a 55gr blitz king out of a .22-250 if I can find the data I will post it. Heavier bullets usually are better in wind because they usually have a good BC but that doesn't mean it has to be heavier to buck the wind better. I will take a .264 Win Mag shooting 140 gr Bergers with a BC of .640 going 3150FPS over almost any .308 caliber Magnum shooting a 220gr Round nose any day for bucking the wind even though the .308 round is heavier. Now oviously those are extreme differences. Hear is some stuff I had accessable


"An interesting note is that the Lapua 123gr Scenar bullet has a BC of .547 which is better than the 30 cal 190gr Sierra Matchking (.533), and if it can be launched at 2900fps it will exceed the ballistics of the 300 Win Mag Federal Gold Match Load at long range, though it will not have the same energy. The Cor-Bon 123gr load does this and is a very good load. The Lapua 139gr bullet has a BC of .615 and if it can be launched at 2800fps it also exceeds the long range Ballistics of the 300 Win Mag. The Black Hills and Cor-Bon 139gr loads both achieve this"


Wind Drift (Inches) 10mph Crosswind

Cor-Bon 260 Remington 139gr Lapua Scenar at 2750fps
Cor-Bon 260 Remington 123gr Lapua Scenar at 2900fps

100 200 300 400 500 600 700 800 900 1000
139gr 0.5 2.2 5.1 9.3 14.9 22.2 31.1 42.0 54.8 69.9
123gr 0.6 2.3 5.4 9.8 15.8 23.6 33.2 44.9 58.9 75.4

Wind Drift (Inches) 10mph Crosswind
190gr Sierra Match King at 2900fps

100 200 300 400 500 600 700 800 900 1000
0.6 2.4 5.5 10.1 16.4 24.2 34.2 46.6 61.1 78.0


I apologize for the spelling and grammer but I had to post this in a hurry as I didn't have much time.
 
Now there is alot more to bucking the wind than BC but I didn't have time to type a 4 page report :D I realized after I hit submit that I never answered the question.

I shoot a .22-250 Rem shooting 55gr Sierra BTHP and couldn't be happier. you never really heat your barrel hunting coyotes that often (not like PD's) so I decided on a sporter weight rifle and am glad I did. ( I usually prefer heavier rifles)
 
Well so many different choices it makes it hard to choose the point is there is no one choice just try every caliber you can afford every gun you want and some you dont just get out and shoot some dogs and have fun there is no better fun than foolin a coyote into thinkin that your dinner
 
I like my 223 its a bolt 700 heavy barrel with a bullet drop compensating scope kills too 500yds are possible when teamed up with a lazer range finder . also for explosive fun the 300 ultra works like a hot dam but not if you want to keep the pelt
 
I just meaasured the coyote ##### I shot yesterday 7 1/2 '' spine to ribcage. A goodsize target. I use a 243 with 63-75 gr bullets. Most work well (dont like Sieara match - not what they were ment to do) I have used & still do, most 22cf but like the 243. Like stated its good to have your own fav. & your own opinion. good luck AJ
 
I'm currently shooting a 19-223 Calhoon and a 22-243 Middlestead for coyotes, but if I was gonna recommend an over the counter rifle/calibre...

buy a 204 Ruger! I've had four...they're great on coyotes!
 
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