.223 Best All Around Twist Rate

captonion said:
It would seem so. Just got off the phone with a guy named Phil from Burger Bullets.. I gave him the very same question that you say isn't so, well apparently it is very much so... More bullet drag and friction being the cause.. He went on to say if I seated the same weight boat tail on the same charge that I should see less of a variation as there is less bullet surface area in contact with the barrel thus less drag, and friction..
Call if you like
714-441-7202
Click to expand...

Consider though that the bullet is engraved in the first inch of travel, where does the additional friction come from, and the real question is does he agree that it accounts for a difference of 90 fps? Did you ask him about the nose up attitude of the faster spinning bullet while in flight, and whether this resulted in a loss of BC?
 
hoytcanon said:
Again... my older 12 twists (all Ruger's) shot the 53 VM's very accurately... as the did the 60 VM's... the 69 BTHP's were marginal and heavier/longer bullet's would not stabilize... my .223's are all 8 & 9 twists now... and the 68 and 75 BTHP's are my top two preferred bullets.
Click to expand...

I don't doubt it. Just noting the math.
 
Boomer said:
Consider though that the bullet is engraved in the first inch of travel, where does the additional friction come from, and the real question is does he agree that it accounts for a difference of 90 fps?
Click to expand...
He said it was not uncommon!

Boomer said:
Did you ask him about the nose up attitude of the faster spinning bullet while in flight, and whether this resulted in a loss of BC?
Click to expand...
I did not but I will be reading some in-depth material on bullet flight (nutation and precession) that my friend was nice enough to lend me.. Will read this in the evenings when I am back in camp...
I am educating myself. I would rather do this than just tell people they are wrong just because I think I am correct...I said I was learning!
 
Last edited:
hoytcanon said:
Don't count on shooting 75's from a 9 twist... some on this thread seem to have had some success, but I know of many who have not, including myself... you will be good with 68's and 70's with the 9 twist, but if you go heavier move to the 8 twist.
Click to expand...

I've heard that that actually depends on your elevation. In my cz varmint, the 75 moly coated amax work really well.... 3/4" groups at 100 yards are not uncommon, and I haven't down extensive load testing. I use those as a long range coyote bullet.

OP, I don't like savages. I think they feel like toys, and not a rifle that inspires me to enjoy shooting. I like my CZs much better. Also, the CZ has a much nicer barrel inside, a much nicer trigger, and a all around better rifle.... The inside of a savage barrel looks like a file on the inside, causing it to hold a lot of copper and other fouling. The CZ has a much smoother inside due to the barrel making process, and holds a lot less fouling. You get what you pay for.

In my mind, the new Savages are for people that think that a sunfire or fiesta is a luxury car, or only fire 3 shots a year.
 
captonion said:
He said it was not uncommon!


I did not but I will be reading some in-depth material on bullet flight (nutation and precession) that my friend was nice enough to lend me.. Will read this in the evenings when I am back in camp...
I am educating myself. I would rather do this than just tell people they are wrong just because I think I am correct...I said I was learning!
Click to expand...

I enjoy debating this stuff with guys who keep the discussion civil, much can be learned on both sides of the argument that way, thank you for that.

Despite what you were told by Phil, I have a hard time accepting it, considering that two different barrels having the same chambering, barrel length, and twist, can produce significantly different velocities with the same load, so to blame such a variance on twist alone seems wrong to me when the difference in twists simply results in a very slight difference in the angle of engraving on the bullet. My turn to hit the books I guess.
 
Boomer said:
Despite what you were told by Phil, I have a hard time accepting it, considering that two different barrels having the same chambering, barrel length, and twist, can produce significantly different velocities with the same load, so to blame such a variance on twist alone seems wrong to me when the difference in twists simply results in a very slight difference in the angle of engraving on the bullet. My turn to hit the books I guess.
Click to expand...

He did say the different barrel alone would be part of the difference.
 
You must log in or register to reply here.
Back
Top Bottom