Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
BCM
User Panel

Posted: 7/12/2018 10:35:33 PM EDT
Just a random question here that I can’t seem to find any answers to. What are the heaviest bullets in .223 caliber (.224 diameter, loaded in .223 case) available to the reloader? I’ve seen 95 gr Sierra Matchkings but I wasn’t sure if they make anything heavier.

Thanks for the responses
Link Posted: 7/12/2018 9:05:47 PM EDT
[#1]
In before the lock and move to reloading forum

What caliber of of 22 exactly are you looking to reload for exactly?

The 90 and 95 SMK is mostly for 224 Valkyrie, just like the 75 and 88 ELD while you can get away with 80 SMK in the AR15 but it will be a single load only as it doesn't fit mag length in its OAL of 2.39 while max length for most magazines is 2.260 (The ASC 20 round is capable of doing 2.30 FYI).

I suggest getting books from all the companies that you're going to reload their products, and having a good read before you begin.
Link Posted: 7/12/2018 9:58:33 PM EDT
[#2]
Federal has been hinting at the release of 100 gr 224 Valkyrie MSR ammo.  I don't think that includes bullets for the handloader though.  Lock Stock and Barrel also offered .224 100 grain bullets years ago, but I believe those were used by a small community of wildcatters using necked down 243 brass.  At some point friction losses due to bearing surface really become a problem, and 100 grains is probably pretty close to that threshold.
Link Posted: 7/13/2018 12:14:22 AM EDT
[#3]
Link Posted: 7/13/2018 12:58:51 AM EDT
[#4]
The Berger 80.5/82 can fit to maglength, but the 77gr TMK should take up less case capacity with similar BC.
Link Posted: 7/13/2018 6:04:12 AM EDT
[#5]
Link Posted: 7/13/2018 11:03:36 AM EDT
[#6]
I think Dano was on the right track.  Let me try and clarify and you can tell me if I helped, Dano.

You seem to be after a heavy for caliber bullet to buck the wind.  However, the super heavies are traveling slower and get blown sideways anyway, as a consequence of that reduced speed.

As Dano said, they have more drop as a consequence of that slower speed but that is just a matter of cranking the elevation knob.

This is the same situation as trying to shoot 210 gr bullets from a 308.  You want the high BC but cannot effectively use it due to the limited case capacity.

Now, if you step up from 308 to 30-06 or 300 WM, you can begin to use that 210 gr bullet.
.
.
.

Finally, you need a faster twist to stabilize the super heavy bullets.  A 1/8" twist will stabilize an 80 gr.  I'm not sure what you have or what's needed for a 100+ gr bullet.
Link Posted: 7/13/2018 8:13:39 PM EDT
[#7]
Approx. 1" faster twist per 0.1" of bullet length.

1:9- 1.0" (77gr SMK)

1:8- 1.1" (80gr SMK)

1:7- 1.2" (90gr SMK)

I see the 95gr SMK reported at 1.28"
Close Join Our Mail List to Stay Up To Date! Win a FREE Membership!

Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!

You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.


By signing up you agree to our User Agreement. *Must have a registered ARFCOM account to win.
Top Top