New 223 Ai build

Originally Posted By: whyOriginally Posted By: pyscodogIt seems very fast twist barrels and heavy for caliber bullets is the norm right now. I'm not saying its a bad thing, just seems to be normal these days. Just my opinion, 70 and 80 grain bullets from a 223, be it AI'ed or not is going to pretty much kill the velocity and have the trajectory of a rock. I'd go with a slower twist, shoot 55-60 grain bullets max at respectable velocity's and go kill stuff. If you want to shoot heavier bullets, get a larger caliber rifle
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How about you look at the trajectory of say a 50vmax @3500 and a 75amax @3050 out to say 800 yds. You will find that it is the 50 that drops like a rock, and look at the windage while your at it.

I actually ran these numbers last night, but didn’t want you to feel like I was being argumentative.

53 vmax at 3440 (really smokin) and a 75 a max at 2970 (my old number).
The windage difference at 400 yards (which is what I’ve always considered max practical range of any “calling” rifle) was less than the length of my index finger, which is hardly worth worrying about as you’d have to calculate either one to get a hit on a p-dog sized target. Beyond 400, of course the 75 will really shine, but I can’t see where that’s the slightest bit significant in a calling rifle. If I was shooting those cute little prairie dogs, I’d want a 6mm anyway, assuming fewer crawling back into the hole at long range.

Is the 75 better in the wind, of course it is, but it doesn’t matter again as you’re looking at enough windage either way that you’re going to need more than Kentucky to make a hit.
 
Best I could find without spending a lot of time searching was someone on another forum replied it drops about 20 feet at 800 yards. Still not exactly a lazer beam.

Heck, I remember years ago, 22 LR ammo had precautions on the box saying a 22 bullet would go a mile.
 
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Just to muddy the water even further, as if five pages of replies weren't enough, if you're looking for the trajectory of a heavy .22 cal bullet but you want to shoot lighter bullets, you wouldn't mess with a .223AI at all but rather build yourself a 20 Practical or 204 Ruger and shoot the 55gr Berger because out to 800 yards, with a 90 degree 10 mph crosswind, the drift will be almost the same, but the drop with the .20 cal 55's will be 28 inches less. Just something to think about.
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You can still use the same action because the bolt face and mags will be the same.
 
Before someone asks... I guess I should state the obvious that my defense of light to medium bullets is strictly due to terminal performance, as I’ve seen it 1,000 times, speed kills better than anything as far as vermin go.
 
As for load development with 223 AI, I guess you’ve got me there as I’ve always believed putting a skunk in the oven wouldn’t make it a biscuit

Now that is funny!!!
 
Ok so i decided to build a dedicated varmint rifle will build a 6x45 for my boy and shoot heavies at low speeds for the bush
1:10 twist 26" heavy barrel 223AI
Going to maily shoot 53gr vmax
What powders would you suggest that is temp stable, accurate and fast.
I can get vithavouri and hodgdon powders localy.

Thank you
 
Originally Posted By: Stan da ManOk so i decided to build a dedicated varmint rifle will build a 6x45 for my boy and shoot heavies at low speeds for the bush
1:10 twist 26" heavy barrel 223AI
Going to maily shoot 53gr vmax
What powders would you suggest that is temp stable, accurate and fast.
I can get vithavouri and hodgdon powders localy.

Thank you

The Extreme powders from Hodgdon will be some of, if not, the most temp stable. H4895, H322 and Hodgdon Benchmark will all be very good powders for you. Benchmark meters like water, H4895 and H322 should give you a little more velocity, but all three will work well with that weight class bullets.
 
Ran the 223ai over the magneto speed today. I have the Berger 80.5's going 2888 with an SD of 3.6 out of Lapua brass, 25.0gns of IMR8208XBR and CCI450's from a 21" 7tw rock that Mr Beanland spun up for me. Absolute hammer and shooting tiny little bugholes. All giggles here.
 
Originally Posted By: Stan da ManOk so i decided to build a dedicated varmint rifle will build a 6x45 for my boy and shoot heavies at low speeds for the bush
1:10 twist 26" heavy barrel 223AI
Going to maily shoot 53gr vmax
What powders would you suggest that is temp stable, accurate and fast.
I can get vithavouri and hodgdon powders localy.

Thank you

My .223 AI shoots bullets in that weight area best with H335. I have tried several powders for it but settled on H335 for speed and accuracy.
 


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