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Hornady 223 55 gr soft point ?
- Thread starter rebs
- Start date
I think it would leave too little bullet in the case. I also seat them a little longer than 2.200" and mine end up at about 2.220" out to 2.230". You won't gain any accuracy especially in an AR trying to seat them longer. Still has a big jump to the lands seated longer. In my one bolt action .223 Rem seating them to around 2.246" will jam them into the lands and at 2.260" they would not chamber in my bolt rifle. Lots of Hornady 55 FMJ and SP shooters say to just seat them to mid-cannelure. Mid-cannelure with my seating puts them about 2.230" while 2.200" puts almost all of the cannelure inside the case mouth.
How to write a mediocre load book:
Put in more or less powder to find the limits of loose primer pocket and bullet stuck in bore.
Seat bullet as long and short to find the limits of touching the lands and falling turtling back into the neck.
Average those numbers.
Bring in a professional ballistician with a degree in science.
"Use the logarithmic mean, it will make the numbers slightly smaller." - invoice $2k for consulting.
Put in more or less powder to find the limits of loose primer pocket and bullet stuck in bore.
Seat bullet as long and short to find the limits of touching the lands and falling turtling back into the neck.
Average those numbers.
Bring in a professional ballistician with a degree in science.
"Use the logarithmic mean, it will make the numbers slightly smaller." - invoice $2k for consulting.
m&p45acp10+1
New member
As long as they fit your magazine, and there is enough in the case to prevent it from unseating itself it will not hurt anything to try it.
"Lots of Hornady 55 FMJ and SP shooters say to just seat them to mid-cannelure. Mid-cannelure with my seating puts them about 2.230" while 2.200" puts almost all of the cannelure inside the case mouth."
That seems to work well enough for my purposes when shot from AR's or bolt actions. I doubt you can even get close to the lands of a 5.56 chamber while retaining enough bullet pull to prevent dislodging/misalignment during feeding.
That seems to work well enough for my purposes when shot from AR's or bolt actions. I doubt you can even get close to the lands of a 5.56 chamber while retaining enough bullet pull to prevent dislodging/misalignment during feeding.