A 22-284 Build....The Baboon Slayer...Done Now With Pics

Can anybody tell me if the Berger bullets are tougher or have thicker jackets than the SMK ? I think I'll put the 1-8 barrel back on and try the 90 gn Berger and SMK at about 3700-3800 fps. This gives a stability coefficient of 1.4 @ 95* F and 3000 feet ASL, which is the conditions I expect to use it in in SA. Although I'm dropping fps I'm picking up significant BC, so it should work out well...........maybe........if the bullets don't disintegrate on the way to the target..........
 
Berger's site shows the 90 gr. VLD target bullet with a set optimal twist rate of 1-6". Being a target bullet, it should hold up to the forces of the Baboon Slayer if not loaded too hot. Berger don't make .22 hunting bullets & their .22 varmint line tops out at 64 gr. Hope you find a load that works well in the beasty. Dang dirty apes must pay.:)

http://www.bergerbullets.com/products/target-bullets/
 
brybenn said:
How will the bergers behave on impact? Or is that not a concern?

I've heard they splat at high velocity or pencil thru is slower.
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The intention is to blast baboons in the face from 500-600 yds, as long as the bullet gets there intact performance should be fine with just about anything.

Besides, with a muzzle velocity of 3600+, it should still be going a pretty decent speed at 600.
 
They will leave pencil hole wounds at high velocity. I use the 80.5gr out of a 22-250 for coyotes, bobcats etc. Even at 50-60y they just look like a .30 cal hole on both sides of the animal.
 
I'm not terribly concerned with terminal performance..........also I suspect with the excessive rotational forces, the bullet will be pretty much just inside the upper edge of the integrity envelope, so upon impact it should literally tear baboons to pieces. Rotation does not slow down as does velocity, from what is known the rotation of the bullet remains more or less constant through out it's flight. Obviously there will be some losses but apparently they are very slight over say the 2 seconds of normal maximum bullet flight. So I suspect that with a RPM of 330,000+ the impact and terminal destruction should be quite impressive.
Cdn S..........at the much reduced speeds and therefore much reduced rpm in your 22-250, I believe what you are saying but I don't think it will apply to this bullet at 3700+ fps and a rotation of 335,000+ rpm. It was at this velocity and rpm that the 80 gn SMKs self destructed, I'm hoping the 90 gn VLD is tougher so I can get it to at least 3700 and maybe 3800 fps and stay together.
I have a box of them so I think I shall section one of the 80 gn SMKs and one of the 90 gn VLD to see if the jacket is noticeably heavier.
 
I run the 80.5 in two rifles, ones a 7t and the others an 8t, at 3150fps in the 7t they're spinning 324,000 rpm...so not far off what you're seeing.

Although your 500-600y impact velocities will be like my 22-250 at 200-300y.
 
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That's good to know that you are getting 324,000 RPM and maintaining bullet integrity..........gives me some hope for the Bergers. Obviously if you are not getting explosive terminal ballistics on game at 324,000 rpm then the bullet is NOT on the verge of disintegration. I like to hear that !!!! The Bergers will be the next test after I put the 1-8 back on...........
 
c-fbmi said:
That's good to know that you are getting 324,000 RPM and maintaining bullet integrity..........gives me some hope for the Bergers. Obviously if you are not getting explosive terminal ballistics on game at 324,000 rpm then the bullet is NOT on the verge of disintegration. I like to hear that !!!! The Bergers will be the next test after I put the 1-8 back on...........
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Perhaps 324,000 rpm is the upper limit of rotational velocity that's possible with small bore lead core bullets; thicker jackets mean longer bullets of equal weight, demanding even faster rotational velocities, suggesting the point of diminishing returns is near. You might consider mono-metal bullets, that can withstand 5000 fps, approaching the maximum velocity possible with today's propellants. A monometal bullet of equal length to the 80 gr MK is lighter, so can be driven faster. A 60 gr GS Custom .224 should stabilize in your 1:8, and will make 4000 fps.

Here's an article that describes the terminal performance on game, of GS Custom's 40 gr HV bullet, driven about 1000 fps faster than your 80 gr MKs, from a .22/06, the equivalent of your .22-284 . . .

http://www.gsgroup.co.za/22x64.html

The following is a study of meat damage of monos vs lead core bullets. Of particular interest is the blesbuck killed at a quarter mile; hit with a 40 gr HV bullet with a 3000 fps impact velocity . . . at 420 meters!!! That should pretty much do in a baboon . . .

http://www.gsgroup.co.za/
 
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todbartell said:
why not just get a 243
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Well let's see...........

A) I have six 243s

B) I have never seen a 243 90gn bullet with a BC over .5

C) I have never seen a 243 that will drive a 90 gn bullet at 3700-3800 fps (remember I got 3950 fps with the 80)

So no the 243 does not meet my criteria for a rifle cartridge to specifically slay baboons. Besides, leave me alone I'm having fun..........never said it had to be practical..........


So now I think I will put the 1-8 barrel back on and try some 90 VLDs and see if they will shoot. I may still buy a 1-9 and a 1-10 barrel and see what they do with 80 and 90 gn bullets.............but first I think I'll build my 234 Penguin.
 
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Superbrad said:
Yes..... get on that penguin... those bastards are wandering the Antarctic all smug in their fancy suits......

Also, what's the best gun for leopard seal defence?
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My Coonan with 140 JHP at 1400 fps or my Delta Elite in 10 mm loaded to the max with 180s or 200s...........it's not like they can jump on you and grab you with their claws. I doubt they could stand a magazine full of 140 JHPs, and you know they are gonna be close....real close !!! They are also not very good at stalking on the land. A handgun is also significantly better if one has you by the leg..............it's a lot easier to shoot while screaming !!!!!
 
^ I remember reading a story in an old national geographic as a kid; it opened with the author describing gunning down a charging walrus with his 45 acp 1911. I was born too late.
 
conor_90 said:
^ I remember reading a story in an old national geographic as a kid; it opened with the author describing gunning down a charging walrus with his 45 acp 1911. I was born too late.
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Not necessarily C90..........where I took my walrus you could easily go ashore and entice a big old bull walrus to give you a go........then blaze away with what ever you happen to have brought with you. There's always a 44 mare's leg.........OR...
 
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