Need a good load for .223 using Hornady 55 gr FMJ BT

R

Rahnman

Inactive
Hi All,

I am new to reloading for the .223 and new to these forums but not to reloading itself. I have recently finished building an AR in .223 Wylde and am wanting to work up a good load for it. I currently have some IMR-4198 and have purchased some 55 grain Hornady FMJ BT's. I have CCI 450's and Remington 7 1/2's for primers and some LC and FC brass.

I am wondering if anyone has worked up a good/accurate load with these components. Also, I do not have a Hornady book so I don't know what their recommended OAL is for that bullet. Any help would be appreciated.

Thanks in advance!
-Rahn-
 
Welcome to TFL

Believe it or not the Hornady manual does not list the 55gr FMJ-BT in there 5.56 data . That to me seems stupid . Anyways they do have that bullet listed in the 223 data .

Hornady 223 Rem using a 26" barrel
55gr FMJ-BT
IMR 4198
Min 17.4gr @ 2800fps
Max 20.0gr @ 3100fps
OAL 2.200 but I load them to 2.240 for my AR using 25gr IMR 4895 and that is seated right to the base of the crimp grove . I do not crimp my AR loads . If you plan to crimp you will need to seat to Hornady specs .
 
You didn't mention what your rifle barrel is but my AR-15 16" bbl "service rifle" go to load is:

55gr Hornady FMJ cannalured
25.1 gr of Win 748
about 2645 fps

I do tweak the charge +/- a bit depending on the ambient temps. I've tried all the way up to a compressed load at 3290 fps , and see no added accuracy. My groups start opening up >2900 fps.
 
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