Reloading Sierra Projectiles and CFE 223 Powder

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CanXB

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Was at the local shop and all they had were the following projectiles for my AR (SIG516). Bought 2 boxes and went home to start reloading. Pulled out my sierra manual but unfortunately they do not list CFE 223 powder for these projectiles. Has anyone by chance reloaded this combination of powder and projectile? Also went to the Hodgdon website and info for 55 gr projectiles was limited as well with the CFE 223. Any help would be greatly appreciated.

Sierra part number 1355
Full Metal Jacket Boat tail - 55 grain
With Cannelure

Powder - CFE 223
 
use the data hodgdon provides, use the 55gr bullet weight data. it doesn't have to be an exact match, just close to the weight.

start low and work up, i would seat them to the cannelure if it's just plinking ammo.
 
Thanks Spawn. I see that they have 2 different sets of Data for the 55gr, but there is some overlap. I will start with the overlap powder charges (lowest value). Now I have a question regarding the cannelure. Is it required to crimp or can I just use the neck tension to hold the projectile. In the past I have reloaded 223 ammo but it was for a bolt action rifle and the projectiles did not have a cannelure so I did not crimp. Any recommendation for COL, or just where the cannelure is? Yes, just plinking ammo.
 
i would start at the lower of the 2 as well (26gr as i recall) and work up from there in 0.5gr increments. i don't load for an AR but from my reading crimp is a good thing for an AR.

make up a few dummy rounds at the cannelure and see how they cycle through your gun, you could try seating them longer but i don't see the benefit if your just plinking.
 
55gr_zps1ac54609.jpg


From Hodgdon's reloading center.... The FMJ should be fine all the way up to max but for safety sake I'd call it quits around 27.5gr and use a good crimp.
 
Load for the bullet weight. Who made it or its construction doesn't matter.
The CFE powders are fairly new. Released in 2012. Supposedly made for the U.S. military. The assorted manuals don't have it for that reason. Just in Hodgdon's 2014 manual.
 
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