Starting on the 223.

OK, I've got many 100's of 223 cases all cleaned and prepped and it is time to start working up a load. My rifle seems to love the Hornady 55gr soft points in Hornady factory ammo, they do the job well, so I have a heap of them. I probably want to go with 2206h, but I also have BM2 and 2207 sitting there for some reason.

So anyway, I've done developments for the 243 and 7mm Rem Mag and the ADI guide is typically very conservative for those, but I haven't done anything with the little case so far. What do you reckon I should start at and what sort of increments? The ADI guide only gives a 1gr spread from 25-26 gr of 2206h.

I use the same Hornady 55grn sp and use BM2 at 26grns

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Yup. I had the same load as 25/08 I use 65 gmk in my 223 for animals now. Same powder just not as much.

2206h is sluggish in my barrel.

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whats your barrel twist ratio ?

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Originally Posted by gonetropo

whats your barrel twist ratio ?

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12" twist, so just the lighter pills. It really loves those Hornady pills. Bolt action.

25.5g 2206h 55g hornady shot well in my 1/12 twist.

50gr hornady with 25 grains adi benchmark 2 works well, if you want a bit of power to try you have my number

BM2 all the way GM. Nice full case etc...

yep, go with the BM2. Shoots great in my rifle - good velocity, good accuracy

BM2 and the same projectile you like ( 25 grs from memory) at 3070 fps out of my Rem Mod 7 with 20 inch barrel. Great load shoots good also.

24.5grns 2206h behind that 55grn pill suits my rifle...... that amount of that powder behind any pill between 50-55grns suits it in fact.

@gadgetman re 55gr Hornady.
I still have a box of those in the cupboard if you want them
Give them to you if you can get them up there.

Forgot to mention mine was 16in barrel DPT suppressed.

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Originally Posted by jakewire

@gadgetman re 55gr Hornady.
I still have a box of those in the cupboard if you want them
Give them to you if you can get them up there.

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Think I've got around 700 of them. Give or take.

Every rifkle will be slightly different in its preferences. With my zastava, after fixing the rubbish stock I played around with 2207, 2206h, and 2208 with that bullet. 25 gr of 2206h gave the best results accuracy wise, 2207 was most economical but less accurate, and 2208 was slowest with a full case. Ive now use the sierra 55 gr hpbt for its better terminal performance or their 52 gr smk with no complaints.

BM2 is my 223 powder of choice.

My load with 64 grain projectiles is 8% over the ADI max and is safe in my rifle.
Some of the ADI data is very very conservative !

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Originally Posted by Marty Henry

Every rifkle will be slightly different in its preferences. With my zastava, after fixing the rubbish stock I played around with 2207, 2206h, and 2208 with that bullet. 25 gr of 2206h gave the best results accuracy wise, 2207 was most economical but less accurate, and 2208 was slowest with a full case. Ive now use the sierra 55 gr hpbt for its better terminal performance or their 52 gr smk with no complaints.

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Same rifle. Was 3-4" groups at 100m when I got it. After suppressing it was straight down to 1/2" groups at 100m with the Hornady training ammo. I pulled some FMJ pills from Winchester ammo and replaced with A-Max, Speer SP and the Hornady SP. Didn't like the A-Max, Speer was about 3/4" and the Hornady was the same 1/2" as the training ammo.

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Originally Posted by akaroa1

BM2 is my 223 powder of choice.

My load with 64 grain projectiles is 8% over the ADI max and is safe in my rifle.
Some of the ADI data is very very conservative !

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I agree
55gr z-max with adi ar2206h, 26.8gr in my 18 inch barrel 1-12 gave 3240fps. Was a warm load but never produced any issues personally. Usual caveats apply though.
Worked perfect for running the Nikon m223 scope with bdc ret

Awesome, I've got 2kg of BM2 which I wasn't sure what I was going to do with it. What other calibres does BM2 suit?

T3 8 twist 65gr Sierra 24gr BM2.They all go down and stay down.