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Originally Posted by T_O_M
Then I'd weigh trading in the gun vs cylindrical powders.
Benchmark and IMR 8208 go through a powder measure quite nicely. The kernels are tiny, and the thrown charges are uniform.

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Benchmark, 8208, & TAC. Just started with N133.

.223 is just plain easy.


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H335, TAC behind any 55g.


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Any love for RL10X?


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H-4895 for all .223 loads 55gr-75gr.


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Benchmark, TAC, CFE223 and 748 for me in that order. 8208 also was good but not shot as much.

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Originally Posted by kwg020
Originally Posted by T_O_M
H335 is my go-to for just about everything .223.

Fallbacks would be H322, Benchmark, CFE223, AA2230. I haven't tried Win 748 but I think it belongs on the to-try list. I'd stick with spherical powders unless I'd tried all of them and none worked well. Then I'd weigh trading in the gun vs cylindrical powders.
I haven't tried H322 but I have the rest of your list. In the same burn rate as H322 is RL10x and AA2015. I have had very good accuracy from both of those powders. As per the loading manuals the velocity if typically less than the slower burning powders. But, accuracy is among the best. The worst accuracy is Win 748 in my experience but I have a bunch of 748 on hand.

kwg

W 748 performs best when using close to max loads...or max....


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Never had to try anything but benchmark in the 223 for anything up to 65 gainers. I do have 8 pounds of cfe 223 I haven't cracked open yet

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Originally Posted by Yaddio
Any love for RL10X?
RL10 and AA2015 are real close to each other. They both shoot .223 very well. They are fast burning powders so I'm guessing you will not get top velocity but you will get very good accuracy.
kwg


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Originally Posted by Seafire
Originally Posted by kwg020
Originally Posted by T_O_M
H335 is my go-to for just about everything .223.

Fallbacks would be H322, Benchmark, CFE223, AA2230. I haven't tried Win 748 but I think it belongs on the to-try list. I'd stick with spherical powders unless I'd tried all of them and none worked well. Then I'd weigh trading in the gun vs cylindrical powders.
I haven't tried H322 but I have the rest of your list. In the same burn rate as H322 is RL10x and AA2015. I have had very good accuracy from both of those powders. As per the loading manuals the velocity if typically less than the slower burning powders. But, accuracy is among the best. The worst accuracy is Win 748 in my experience but I have a bunch of 748 on hand.

kwg

W 748 performs best when using close to max loads...or max....

I guess I will have to soup my loads up a bit.

kwg


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The most accurate loads in four of my 223's with 55 grain bullets is with H335. I've sold two of those 223's and they both got near 1/2 MOA with 55 grain bullets and H335. The old model 78 I've shot PD shoots ever since the 78 came out still shoots just under 1/2 MOA with 26 grains of H335 and 55 grain bullets. The throat is getting quite worn and I thought about re-barreling it, but it keeps on shooting.


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Try 26 or 27 grains of H 322....


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Originally Posted by JTrapper73
I’ve had good luck with Benchmark.

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748 is tough to beat. My high volume loads are 748
Or surplus 846 which is BLC2.
Funny. I only had one rifle really prefer h335
It was a savage. H 335 is a go too
For most guys. My hunting pard burns a ton of it
Me seem I get better results with other powder
Have no idea why

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27 grains of Varget behind Hornady or Sierra 55 gr soft points have been my most accurate 223 loads. PP Varmint does well with Sierra hollow point gamekings and meters nice. Have plenty of H322, but I use that for 6.8 spc loads.

Just started testing with Benchmark and it is looking promising.

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H335 is a good powder, but your loads will vary a lot between a below zero winter day and a 95 degree August day with rifle and ammo baking in the pickup while you are doing farm work. Benchmark, TAC, 8208, and other modern powders are less temperature sensitive and leave your barrel cleaner. On a SD prairie dog hunt I put 430 rounds with 8208 through a .223, then shot a few groups back home before cleaning on general principal. Groups were still tight, and cleaning was routine.

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Try and find all that powder that works in a 223. All the concern about temperature sensitivity is inconsequential, at the end of the day, you won’t probably ever shoot in the extreme temperature differences that people claim are critical and if you do, I doubt you will even see a difference.


All the so-called better powders won’t kill more varmints and you can’t use what you can’t find…



https://www.powdervalleyinc.com/product/hodgdon-h335/


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A very obliging cartridge. Depending on the barrel/chamber, everything that's been mentioned works fine in a .223. AND what you can get. My favorite - fastest most accurate - with 55's is VV135, and VV133 with 50's. But you gotta use what you've got or can find.

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Shrapnel, you're correct about using what you find. But, I carry a rifle in the summer while on the family farm, and I've had H335 loads that were mid range according to the chrono on a summer morning get squirrely when shot in a hot rifle on a hot day. H335 will vary 300 fps from very cold to very hot. TAC and 8208, much less.

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