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 .223 1-12 Twist
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Average Member

102 Posts

Posted - Jan 11 2017 :  13:07:35  Show Profile Send midnightSGT a Private Message  Reply with Quote
Hey guys i picked up a new to me Remington 700 in .223 remington. It has a 1-12 twist heavy fluted barell. I'm looking to shoot coyotes, and ground pigs out to 300ish max.

Any bullet/powder combo's you would recommend. I just picked up 3 lbs
of becnchmark from a friend for cheap. I believe the 1-12 twist dictates
light bullets.

I intend to work up the loads just never loaded for the .223.

The sickness continues.

Advanced Member

2702 Posts

Posted - Jan 11 2017 :  13:54:11  Show Profile Send WonderMan4 a Private Message  Reply with Quote
Here is a site that has various calculators including a stability calculator.

Just plug your numbers in where called for and you can see for yourself. The 1:12 twist does not necessarily rule out bullets above 50 grains if that is what you want to use.

If you take a look at Hodgdon's load data for the 223 Rem, their test setup used a 1:12 twist.

Benchmark should work well for you.
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Advanced Member

1584 Posts

Posted - Jan 11 2017 :  15:15:43  Show Profile Send budlight a Private Message  Reply with Quote
It took me a little time to research and figure out the "Stability" number 1.3 is low spin rate and 2.0 is highest.

So the poster can use up to 69 or 70 grain bullets if they are driven to @3000 fps.

I don't know if bechmark can do that, but I used AR-comp, leverrevolution, and h414 to exceed 3000 out of 24 inch AR-platforms with 223 Wylde match grade stainless barrel
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New Member

12 Posts

Posted - Jan 11 2017 :  19:21:21  Show Profile  Visit Grumulkin's Homepage Send Grumulkin a Private Message  Reply with Quote
You don't need a heavy bullet for coyotes; a 55 grain bullet will work just fine. The main criteria should be accuracy.

If you want a heavier bullet, Speer 70 grain Semi Spitzers have shot well for me in a 222 and in a 22-250 both with 1:12 twist barrels.
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Advanced Member

3865 Posts

Posted - Jan 11 2017 :  22:37:57  Show Profile Send Onondaga a Private Message  Reply with Quote

Your rifle was made specifically to shoot 50 gr bullets well. It is hard to find bad bullets in that category for a .223. Look for the features you like. My favorite 50 gr varmint bullet in .223 has a boat tail for easy loading and it likes slow twist because of the low bearing area due to the boat tail: It is the best choice I could verify with measurements and math.

They aren't even expensive and easily shoot sub 1 MOA with H335, H4895, AA2230, Alliant Reloader 10X and even Benchmark from my NEF Ultra Varmint single shot .223/1:11+ a little verified twist heavy 22" barrel. The 50 gr Blitzkings really aren't fussy at all and any reasonable powder works well when you work up a load! It is silly to argue which powder works best from the recommended powders, they are all so close. I have one load that hovers at 1/4 MOA with AA2230 at 5% below MAX of AA book since the very first time I tried the powder, Your rifle results are all that matter. I use these bullets on Woodchuck, fox, coyote, snapping turtles, and racoon. They work great at any range I can hit a vital/noggin. On a calm day I can easily take a coyote at 300 yards, but no 50 gr bullets in .22 buck wind well at all. Pick your shots to that wind limitation and you will be happy.

My first run early serial number Ultra Varmint SB2 was made specifically to shoot 45 to 50 gr varmint bullets. Later models have a different twist for heavier bullets. My all up 12 pound rifle has the butt stock weighted, Bushnell Banner 4-12x and a Harris 25 Bi-pod for field seated shooting.


Fine rifles are never really owned.

Edited by - Onondaga on Jan 11 2017 23:49:37
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Willie T
Average Member

124 Posts

Posted - Jan 12 2017 :  13:15:53  Show Profile Send Willie T a Private Message  Reply with Quote
My 17 year old son loads for his 12 twist rem 700 in .223. 55 gr Sierra btsp game kings with several powders have been stellar, and are bad medicine on coyotes. He has used H4895, Varget, IMR 8208 XBR, and BLC(2) with exceptional results. H4895 proved to be have the best combination of accuracy and velocity. BLC(2) metered best and gave the best velocity. 8208 XBR is the most accurate but didn't start to shine till right at max. Varget gave the most consistent velocity. His go to load uses H4895. Finding a bullet the rifle really likes seems to be a bigger piece of the puzzle than the powder.

Willie T---Lone Star State
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Advanced Member

676 Posts

Posted - Jan 14 2017 :  00:00:53  Show Profile Send Zero333 a Private Message  Reply with Quote
55gr V-max works nicely with Benchmark.

Treat that trigger like it’s your first date, not like you’ve been married to it for 20 years.
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