.223 Rem - 5.56 Nato -Best price/MOA

htempelman

htempelman

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Hi everyone,

Merry Xmas and Happy New Year.

For reloading 5.56 Nato rounds what do you guy's recommend.
CZ 527 LH rifle
We only shoot targets at 200 yards.
Impact energy is not the issue, lower then 0.25MOA is what I am after.

So many choices
What about 5.56 M193 55GR FMJBT AMMUNITION

CCI for primer?
Thanks for your time.
Trying to beat my Son knowing he has more then 20-20 Vision.
Cheers,

Harry
 
htempelman said:
Hi everyone,

Merry Xmas and Happy New Year.

For reloading 5.56 Nato rounds what do you guy's recommend.
CZ 527 LH rifle
We only shoot targets at 200 yards.
Impact energy is not the issue, lower then 0.25MOA is what I am after.

So many choices
What about 5.56 M193 55GR FMJBT AMMUNITION

CCI for primer?
Thanks for your time.
Trying to beat my Son knowing he has more then 20-20 Vision.
Cheers,

Harry
Click to expand...
Harry, this type of accuracy is highly unlikely to achieve on a consistent basis even for the best of gear and good shooters, especially for a 22 cal. For shore range accuracy the 52 and 53 grain Sierra Match bullets are hard to beat out of a 14 twist barrel, a popular powder is W748.
bigbull
 
I believe the barrel twist is 1:12 -but yeah, the SMKs would be one of the best bets. I'd try Hogdon's Benchmark powder.
 
"...What about 5.56 M193..." That won't help. Milsurp ammo isn't made for great accuracy.
If you can get half inch groups at 200 yards with any ammo out of a stock rifle with a light whippy barrel, you're doing extremely well. That's what .25 MOA is at 200 yards. 1 MOA being 2". You certainly won't do that with ANY milsurp. You'd have to work up a load with match grade bullets, match grade primers and high quality brass that all weighs the same, using match quality ammo loading techniques. AND have the rifle tweaked for absolutely match accuracy.
The twist is 1 in 12. Try working up a load with Sierra 52 grain Matchkings.
 
I found some more info on the net.
Do you agree with this?
I didn't think that the brass in it's static position would have so much effect on the shoot pressure mean data quality.
thanks for that.

http://www.6mmbr.com/223Rem.html

Hoop stress - is mechanical defined stress for rotationally centerline symetric objects being the result of forces acting circumferentially, perpendicular to the wall.

Mean - its is average, sum of all the observation values ÷ number of observations
 
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