223 bullet seating depth Q

[SC_Dave]

223
Loading for AR platform
Hornady 55 grain FMJ BT w/cann
Not crimping

Seat to the center of the cannelure of seat to recommended COAL?

Thanks, David

 

[jebova2301]

I seat close to mag length, or about 2.25" COAL. I don't care where the cannelure ends up. It is what I have found to be most effective in my rifles. Also, I don't crimp when loading on a turret press, but do give a tiny "crimp" on my progressive due to using a Lyman M die that expands the mouth just a tad to allow more stability for the bullet feeder(less bullets tipping over when rotating to the next station). My "crimp" in this case is just enough to remove that slight flare, and is not measurable with my calipers.

 

[Charlie98]

Seat to the center of the cannelure of seat to recommended COAL?

Yes. Sorta.

Either or, as long as it works in your weapon. If you are not crimping, the cannelure makes no difference. If you are loading for accuracy, find a better bullet... that's just my opinion.

 

[Ruger 15151]

I just seat to the center of the cannelure. Bullet seating depth isn't as critical on a gas gun as it would be on a bolt gun. There is never any need to crimp rifle rounds as long as you are running .003 - .004 neck tension on a gas gun and .001 - .002 on a bolt gun.

 

[Ru4real]

I seat close to mag length, or about 2.25" COAL. I don't care where the cannelure ends up. It is what I have found to be most effective in my rifles.

I do the same, as my testing has also proven to me. As long as possible, length limited by magazine in modern sporting rifles. Only one of my half dozen bullets/loads has a cannelure.

 

[Charlie98]

My only word of caution would be... seating those already short bullets longer, would decrease the amount of bullet tension present; granted, we aren't talking about a significant amount of bullet, either, considering max length for the magazine... but it's something to consider.

 

[Blue68f100]

I seat to where i get the best accuracy provided it fits the mag. If I recall I'm pretty close to book length. I do not crimp.

 

[stillquietvoice]

seat close to mag length, or about 2.25" COAL. I don't care where the cannelure ends up. It i

I do the same for my Ar, my bolt gun oal is 2.24 to 2.245 depending on the bullet.

My only word of caution would be... seating those already short bullets longer, would decrease the amount of bullet tension present; granted, we aren't talking about a

I see your concern but, even at 2.25 there is still. 224" of bullet bearing surface in the neck of. 223 case at least with all of my measurements.

 

[entropy]

Seat to the cannelure. They are adequately accurate.