JSB .30 58 gr enough for Coyote body shot ? 100 to 125 FPE ?

Jump to latest Follow Reply
I wasn't aware JSB made 58 grain pellets. Are those new, or do you mean the 45s or 50s?

I'd shoot a coyote with any .30 projectile out to 100 yards at powers as low as 74fpe at the muzzle. Just understand that no air gun round is likely to drop it where it stands without hitting brain or spine. But you should kill one in about 20 seconds or less piercing both lungs with any .30 round. 
 
Upvote 0
I know some will criticize me for this, but, I've killed several coyotes with my .25 Condor shooting 37 grain Rat Sniper hollow points at high sub-sonic speeds at 50 and 75 yards. All were taken with well placed heart/lung shots. All dogs went down within 100 yards distance. But I've watched video after video of coyotes running much farther after absorbing heavy supersonic .308 rounds from powder burners. Yes, I'd like to go up to 30 cal for coyotes. But the proof is in the puddin'. My coyotes are just as dead as yours will be. On dogs, shot placement is everything, even with magnum powder burners.

To ensure a humane kill with my pea-shooter, I bait the coyotes with table scraps that they must eat in place within my 75 yard kill zone. I bag the Condor and wait for a broadside shot of the heart/lungs. Don't use a bait like a squirrel or rabbit that they can just scoop up on the run and eat elsewhere. Make 'em scrounge in place. Be patient and wait for the best opportunity, preferably a broadside stationary target. Don't expect that a direct hit on the heart/lung will drop him in place. But you'll find his carcass not far off. 

Tally-ho, Jaydog.
 
Upvote 0
"BeemanR7"I know some will criticize me for this, but, I've killed several coyotes with my .25 Condor shooting 37 grain Rat Sniper hollow points at high sub-sonic speeds at 50 and 75 yards. All were taken with well placed heart/lung shots. All dogs went down within 100 yards distance. But I've watched video after video of coyotes running much farther after absorbing heavy supersonic .308 rounds from powder burners. Yes, I'd like to go up to 30 cal for coyotes. But the proof is in the puddin'. My coyotes are just as dead as yours will be. On dogs, shot placement is everything, even with magnum powder burners.

To ensure a humane kill with my pea-shooter, I bait the coyotes with table scraps that they must eat in place within my 75 yard kill zone. I bag the Condor and wait for a broadside shot of the heart/lungs. Don't use a bait like a squirrel or rabbit that they can just scoop up on the run and eat elsewhere. Make 'em scrounge in place. Be patient and wait for the best opportunity, preferably a broadside stationary target. Don't expect that a direct hit on the heart/lung will drop him in place. But you'll find his carcass not far off. 

Tally-ho, Jaydog.
Click to expand...
Good advice. I think in the effort to promote good ethics for hunting, the internet has created a certain degree of mythology as to what is and is not acceptable that's based on hearsay and repeating the same mantras over and over again. And no one wants to open themselves up for criticism by straying from the mythology. Because if there's one thing humans love to do, its criticize and posture as "holier than thou." 

Air guns kill quickly on body shots by piercing the lungs. Period. If you have enough fps to punch thru the lungs, and your shot placement is true thru the lungs, you will kill the animal fast. 
 
Upvote 0
"aa_limited"u will cripple lots of song dogs with that round and at that range. 25 yards or less yes but at 100.. hell no not good
Click to expand...
The math doesn't back that assertion up. Not in terms of power anyhow.

Let's assume we're going to shoot a 45 grain JSB at 1000fps out the barrel. That makes for 99.99 fpe, a much lower power than the OP was considering. At 25 yards, that's a retained velocity of 907 fps, or 82fpe. At 100 yards, the retained velocity is 717fps, or 51fpe. The question is, how deep can a .30 45 grain JSB penetrate at 51fpe, and is there a significant difference in penetration between 25 yards and 100 yards, enough to stop the pellet from penetrating both lungs at 100 yards where it otherwise would at 25 yards? 

There is a formula for doing a rough comparison between non-expanding, subsonic loads for penetration into ballistics gel; pellet weight x 100,/7000/caliber/caliber = answer x 2.06 = inches in penetration at 1000fps. Multiple answer times actual velocity expressed in a decimal (with 1000fps = 1 and 850 = .85, ect.). 

So for 82 fps, the formula looks like this: 45 x 100 = 4500/7000/.3/.3= 7.14 x 2.06 = 14.7 inches of penetration at 1000fps out the muzzle. So at 25 yards, 14.7 x .907 = 13.33. At 100 yards, 14.7 x .717 = 10.54 inches of penetration.

So the difference between 25 yards and 100 yards is only 2.79 inches of penetration in ballistics gel. 10 inches is going to punch thru a coyote's lungs as well as 13 inches. 

I can also state from experience that the .30 Polymag, when shot out the barrel at 74fpe, will still punch thru a 3/4" pine board at 100 yards, and that's a retained velocity only in the low 600s fps. 

Now whether someone can put one in the lungs at 100 yards is a question for both the gun and the hunter's capabilities. My .30 Flex can stack them in 1 inch groups at 100 yards if the breeze isn't bad. I'd rather keep my shots around 75 yards just because the holdover isn't as bad. 
 
Upvote 0
You must log in or register to reply here.
Top Bottom
Back
Home
Forums
Resources
Menu