223 Load using H335

[insik]

Hello,

Anybody loading for 223 55g SP with Can. using H335? What is your load data?

I am basing my load from hogdon website:

55 GR. BAR TSX FB 2.180" 21.3 2920 48,900 PSI 22.7
55 GR. SFIRE 2.220" 21.4 2969 47,000 PSI 22.8
55 GR. SPR SP 2.200" 23.0 3018 40,800 CUP 25.3

I am using the number 3 entry. 55 gr SPR SP using 24.3 gr with 2.20 OAL. I believed that SPR SP is the same as Hornandy SP.

First time loading 223.

thanks.

[gau17]

24-25. Should get you there

[HermanH]

^^^
Agreed. Shoot very well at 100 yards. My data came from Sierra:

http://accurateshooter.net/Downloads/sierra223ar.pdf

good luck

[insik]

Thanks guys. Looks like my 24.3 load for 55 SP is the same from Sierra. Except maybe my COAL which is 2.20

[Shoot-it]

H335 is great powder for the 223.If it wasn't for getting a great deal on 8 # H4895 I would still be using it.

[BLR81]

^^^
Agreed. Shoot very well at 100 yards. My data came from Sierra:

http://accurateshooter.net/Downloads/sierra223ar.pdf

good luck

I don't mean to hijack this thread, but I have a question about the load data.
I noticed that the COAL increased with the weight of the bullet from 2.125 to a 2.550.

I thought that for accuracy people where measuring and setting their sizers using a case length gauge and bullet comparator to match the chamber of the rifle. Then seating their bullets just off the lands of the barrel.

So if the cases are all sized for proper head space and the length are all cut to below a fixed max, does that mean that the 40gn bullet will sit further away from the lands than the 80gn bullet? And, if so , isn't the 40gn going to be less accurate? And, why bother with all the measuring for jump spacing, why not just full length size?

In case it isn't already obvious, I'm expecting my first press on Tuesday, and with it my first loading manual. So, if this is beyond stupid, well please be kind.

[gau17]

Seat the bullet to what your rifle likes. For AR's most seat mag length.

[Nodda Duma]

I load 25 gr h335 for 55 gr bullet and that let me get out to 600 yds back in California.

[insik]

I finally shot my first 50 223 load using 24.3 H335 today. Only at indoor range but grouping is quite good.

thanks guys.

[rsrocket1]

You should start low and work up to your most accurate charge weight.
I wanted to use the lowest most economical charge that gave me good accuracy.

What works in your gun may vary
My results with a 20" AR with 23, 24 and 25g H335:

[Rule .308]

When I first learned to reload from my uncle 25+ years ago, him and his buddies all shot a load of 25.5 grains of H335 with your standard 55gr bullets. I have seen books that call that out as over the top but for the most part it is right at the top of the recommended charge weight. H335 is a great powder, real consistent, and flows like mercury.

25 grains is a good place to start but I really have to agree with the previous poster. Do your own load developement. Make up 5 round batches that increase by .5 grain increments and figure out for yourself what works best.

Often, but not always, I will usually find two powder loads that give better accuracy than all of the rest one towards the mid range on the powder and almost always one right up at the top of the recommend charge weight. If the accuracy is acceptable and especially if it is going to be a high volume shooter like .223, I always go with the lower charge weight to save a buck on powder and to keep the wear and tear down on my equipment. If it is a hunting round then round count is usually much lower and I want every ounce of energy I can get out of it.

[Pete1979]

I also use 25.5 as my go to load with 55gr fmj, 52 and 53gr sierras but it is always best to work up. If you have a 5.56 chamber, you are more than safe.

[Pete1979]

I don't mean to hijack this thread, but I have a question about the load data.
I noticed that the COAL increased with the weight of the bullet from 2.125 to a 2.550.

I thought that for accuracy people where measuring and setting their sizers using a case length gauge and bullet comparator to match the chamber of the rifle. Then seating their bullets just off the lands of the barrel.

So if the cases are all sized for proper head space and the length are all cut to below a fixed max, does that mean that the 40gn bullet will sit further away from the lands than the 80gn bullet? And, if so , isn't the 40gn going to be less accurate? And, why bother with all the measuring for jump spacing, why not just full length size?

In case it isn't already obvious, I'm expecting my first press on Tuesday, and with it my first loading manual. So, if this is beyond stupid, well please be kind.

For the most part You are correct, the heavier bullets are easier to get close to the lands but usually the shape of the nose on the heavier bullets is different. More of the bullet is pointed (smaller than the lands). I think its called a Secant ogive shape. Look at the difference between Hornady Match BTHP and Sierra Match Kings when you get your first batch of components. The Sierras (except for the .308 Palmas and 77/80gr SMK) will have less jump when seated to the same OAL. Some rifles like the jump, some don't.

[gemini1]

How would this work out if one would like to get to 5.56 loads? I read that brass for 5.56 is thicker, which would mean less powder? So how does one work out a load for 5.56 spec ammo? All thats mentioned in the web is all about 223

[bigdrunk92037]

24.8g of H335 under Hornady 55 FMJ's is my go to load. Very accurate for me out of my 20" and 16" AR.