I just punched out my SPS Tactical with 20"/9tw to 223AI. Anyone have any pet loads with 55blitzkings/60vmax/62 varmageddon pills? I posted this over on the Hide, and response has been a little slow. Thanks in advance for any suggestions.
As we all know...one load may work in my rifle...
But not yours....start with your previous max load from your
223 & work up...expect 1-2 more gr capacity..depending on brass
150-200 more fps...Redding or the Lee 223 collet die will get
you going...my AI runs best with H4895..Benchmark or 8208...
http://www.accurateshooter.com/cartridge-guides/223rem/
^^^^^
What he said.
Mine likes 28.0 grains of IMR4895 with 55 grainers
or 28.5 gr. of H335 with the 55 gr TTSX ( this may give you excess pressure with a standard cnc)
Haven't done much with 60 grainers, though I can say it does like a mild load of 26 gr. of 4064 with a 60 gr.NBT
Benchmark, 2015, have been fantastic in mine with 55's.
However, N135 will give you the same accuracy with 100 fps+ in velocity.
For giggles and grins, try some H335, you will not be unhappy with the results.
Use thick cup primers, Rem 7 1/2, CCIBR4, Wolf Magnum, CCI 450
YOu will get top velocities at peak pressures. For that reason, many of us 223 AI shootes get our firing pins bushed by Gre-Tan Rifles.
+1 on H335and having the firing pin being bushed.
In my CZ, I have pretty much settled on the 50gr Vmax over 28.5gr Benchmark. I know I could do a little better on speed, but the accuracy is phenomenal.
For bigger critters, up to deer, the 62gr Sierra SMP is my go to. Also over Benchmark, but I cant remember the load right off hand.
26.5gns of H4895 and a 60gn Nosler BT shoots bugholes.
In the new Beanland build, I am running 24.0gns of IMR8208XBR under an 80.5gn Berger and getting sub-1/4 moa groups while fire forming brass. Silly accurate.
While discussing 223ai, I have about 1000 Black Hills factory loads.. If I rebarrel or rechamder to the ai fire forming would eliminate the need to have the cases trimmed for several firings.. Do I have that right?
While discussing 223ai, I have about 1000 Black Hills factory loads.. If I rebarrel or rechamder to the ai fire forming would eliminate the need to have the cases trimmed for several firings.. Do I have that right?
Correct.
While discussing 223ai, I have about 1000 Black Hills factory loads.. If I rebarrel or rechamder to the ai fire forming would eliminate the need to have the cases trimmed for several firings.. Do I have that right?
You NEED an AI WCH!
They are small, he might need more than one. That was my logic, so I have 2.
Ingwe, I know.. My old .222 is 8500 rounds old.. my cases for it are wearing out, . I was thinking of a rechander job in another 1500 rds. But may put a new tube on it w/ just a bit tighter twist.
A tight twist deuce is a good thing......
Ingwe, I know.. My old .222 is 8500 rounds old.. my cases for it are wearing out, . I was thinking of a rechander job in another 1500 rds. But may put a new tube on it w/ just a bit tighter twist.
does the ole Duece have enough meat for a rechamber.......?
the 222 is a sweetheart......my only Duece is a 20/222
that will get your wheels turning......
Tik, it does .. It is a Douglas #5.. I just wonder if it will remove enough worn steel to be worthwhile or just get a new tube.. the 20 sounds fun, but I have too many.22vcal. bullets to move to a .20..
thats usualy the prob....too many components to swith....
new tube......10T......give them boolits more spin.....
I use 27grs. of Vithavouri N133 with a Sierra 50gr. Blitzking. Great shooting load.
I burnt up a bunch of h335 in mine....that barrel i set back and rechambered t 222
In a 9 twist, a guy might try the 75 hpbt with RL15 if you wanted to go heavier.
No pet loads for 9-twist but for context mine is a 12-twist and shoots the 60-gr V-Max's quite well and I use H335 because I have a lot of it. My 60-gr loads thusly loaded get 3450 in a 23" tube-plenty for my 300-yd shots in the farm country I live in. These do not read out as max in my rifle.
George, Ive got a 1 in 12 twist that shoots 60 NBTs into little bugholes, even near sea level. Im using CFE223 and getting the same speed you are...
The 60-grain Ballistic Tip was designed to stabilize reasonably well in a 1-12 twist--which is why it isn't much longer than the 55, and probably why its BC is only slightly better than the 55's.
Nosler, like many bullet makers, often suggests rifling twists faster than required for certain bullets, to make damn sure they stabilize. Which is probably why they lump the 60 BT into theier "60-62 grain. fast twist" data for the .223.
No pet loads for 9-twist but for context mine is a 12-twist and shoots the 60-gr V-Max's quite well and I use H335 because I have a lot of it. My 60-gr loads thusly loaded get 3450 in a 23" tube-plenty for my 300-yd shots in the farm country I live in. These do not read out as max in my rifle.
Those should perform quite well.
The 60-grain Ballistic Tip was designed to stabilize reasonably well in a 1-12 twist--which is why it isn't much longer than the 55, and probably why its BC is only slightly better than the 55's.
Nosler, like many bullet makers, often suggests rifling twists faster than required for certain bullets, to make damn sure they stabilize. Which is probably why they lump the 60 BT into theier "60-62 grain. fast twist" data for the .223.
Figured as much when I ran the numbers through the Berger Twist Rate stability link you gave me...it works!
JBM Ballistics also has an on-line program based on the same formula, except for including a place to enter the length of plastic tips.
The guy who developed the formula Berger uses, Don Miller, eventually came to the conclusion that plastic tips are so light they don't affect stability much, so their length shouldn't be included when calculating stability. This is why the Berger formula suggests that 40-grain Hornady .204 V-Maxes won't even come close to stabilizing in the standard 1-12 twist, when anybody who's used them knows that's not so.
When using the Berger program with plastic-tipped bullets, I subtract 3/4 of the length of the tip from the bullet's overall length, which so far has worked pretty well--and comes close to the results from the JBM program.