heavy weight .223 bullet versus 6mm bullet

H

Howard Nguyen

New member
In term of ballistic, which option is better:

a) shooting an 80 grains .22 cal bullet out of .223 chamber at 2850 ft/sec.

b) shooting an 80 grains .24 cal bullet out of 6x45 chambering at same 2850 ft/sec.

Which one would retain velocity better at 200 yards and 300 yards?
Which one would be the better choice for hunting deer and hogs?
 
The big guys will probly get on this befor I get this posted but I'll tell you what I think.

To me you seam like a Hornady A-max man...

80 Grain Boat Tail V-max .224 dia...havnt shot it but bet there good.
•Sectional Density: 0.228
•Ballistic Coefficient: 0.473 (from midway site)

NEXT!!

...ok guess what no 80 grn .243 dia...so 87...still proving point..

87 Grain Boat Tail V-Max
•Sectional Density: 0.210
•Ballistic Coefficient: 0.400

So given the save velocity the .223 will buck wind better (my fist thought apon reading post)

If you punch these #'s into you favorit Trj. Calcultor you should get your ancer for the velocity down range but the .223 should buck wind better.

GJ
 
The .22 should retain velocity/energy better because of a higher b.c. (Assuming both bullets are of the same design)

Most folks will tell you the .24 will transfer energy better because of the larger diameter but I'm betting it's a wash with the same weight bullet and only .020" more.

Just make sure either one is a very well constructed bullet if you decide to hunt with them (Barnes, Swift Scirocco, etc...) as most will also tell you that those calibers are borderline light for deer sized critters, especially at range.


Big Dawg
 
Originally Posted By: Howard NguyenSo, it appears going to 6x45 does not offer any better range or punch power than using a similar weight bullet in .223 chamber?

Yep thats what I found. I no nothing about the 6X45 but I would like to think that you would beable to have a edge over the .223rem with the same grn bullet. I would think that but I cant say if its thats true.

GJ
 
I believe the draw to 6x45 is this....

6 mm you have big game bullet choices.

6 mm is legal for big game,where .223 is not in many states.
 
Thats about all I can see...not saying its a bad round. I'm still young and I have a need for speed..and I dont meen the drug store kind...R.I.P. Chirs Ledoux...

GJ
 
Originally Posted By: Tim Neitzke
6 mm is legal for big game,where .223 is not in many states.

Are there any states that are not legal for 6m?

GJ
 
Well there is no way your going to be able to shoot 80gr bullets out of a 223 AR unless your going single shot. They are to long to fit in the magazine.

But I think they make better hunting bullets for 6mm then .224.

But as far as long range goes, the 80gr .224 bullet will outperform the 80gr or even the 87gr(as stated above).

I have heard a 223 running a 80gr VLD is about the same ballistically as a 308 running a 168gr bullet.
 
Originally Posted By: GJ2ndOriginally Posted By: Tim Neitzke
6 mm is legal for big game,where .223 is not in many states.

Are there any states that are not legal for 6m?

GJ

Not that I know of.
 
Originally Posted By: HoierWell there is no way your going to be able to shoot 80gr bullets out of a 223 AR unless your going single shot. They are to long to fit in the magazine.

But I think they make better hunting bullets for 6mm then .224.

But as far as long range goes, the 80gr .224 bullet will outperform the 80gr or even the 87gr(as stated above).

I have heard a 223 running a 80gr VLD is about the same ballistically as a 308 running a 168gr bullet.

Yep that too.
A 6 mm will be shorter than a .224 in similar weights.
 
Originally Posted By: GJ2nd

...ok guess what no 80 grn .243 dia...so 87...still proving point..






Berger makes one that I know of for sure, and I also believe there is an 80gr SMK if memory serves but could be wrong on that one.

According to the Berger Ballistics calculator (and not knowing any climate data where this race will be taking place) this is what I came up with.

6mm 80gr Berger HP.... .224 80gr Berger Match
B.C. .306.................. B.C. .445
MV 2850................... MV 2850

0yds 1443 FPE........... 0yds 1443 FPE
100yds 1153 FPE....... 100yds 1238 FPE
200yds 911 FPE......... 200yds 1057 FPE
300yds 712 FPE......... 300yds 898 FPE
400yds 549 FPE......... 400yds 758 FPE


That seems to be a pretty wide discrepency to me, could this be possible?


Chupa
 
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I'm having no trouble running a 70 gr. TSX through my P-mags. I've not yet found a terrific load as far as accuracy goes but they're definately Minute of Whitetail out past where I'd feel comfortable shooting one.

Big Dawg
 
Originally Posted By: Howard NguyenHas anyone tried the Hornady or something similar in 75 grains hollow point (.224) on deer and hogs?

I know this one would fit in AR15 magazine.

I know Hornady says their match bullets like the 75gr HP aren't for hunting, but I think Swift makes a 75gr hunting bullet that work good for deer. I just don't know if they are short enough for ARs.
 
I believe DPMS made some vld mags a while back that would allow for seating out the longer bullets in your ar. I will try to dig up a thread on this.
 
or just modify your mag to accept bullets seated clear out to the mag wall of the receiver.

I have been loading WSSM ammo out to 2.400" OAL using 95vlds.

If you want to stretch out your OAL, just cut the front out of your mag. People/companies have been doing it for quite some time.
 
Originally Posted By: cbass16or just modify your mag to accept bullets seated clear out to the mag wall of the receiver.

I have been loading WSSM ammo out to 2.400" OAL using 95vlds.

If you want to stretch out your OAL, just cut the front out of your mag. People/companies have been doing it for quite some time.


I think this requires a picture! Cuz people like me are saying "What the WHAT ?"
huh.gif




Chupa
 
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