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.223 - 5.56

Re: Loads for .223- 5.56

223 WYLDE CHAIMBER 26" shilen select match 1-8 twist savage varmit countour

223
LAPUA BRASS
205M
24.5 RL15
80.5 BEREGER Full Bore
OAL .010 off the lands will add OAL later..
2880 FPS


1000 yards at a match after shooting 15 rounds at the other stages.
5 rounds in the freaking rain HOOYA!..Black is MOA circle ring is 2MOA
imageqef.jpg

By asm1 at 2011-03-10
 
Re: Loads for .223- 5.56

Hey guys,

My pet load for my Rem 700 LTR (20") has been a quite hot;

69 SMK
26.0 of ADI 2206H
Lapua Match Case
CCI 400 primer (now using CCI 450)
2.270 OAL

At 88 F / 29.93 inHg / 43 % humidity, this load gives me a consistent 3100 fps.

Not surprisingly, I've had some trouble with cratering and blown a few primers, and have decided to go over to CCI 450 magnum small rifle primers as the thicker cup will all but fix the cratering.

Has anyone else done such a change in the past?
Is there an increase in pressures with the 450 over the 400, or is it just a thicker cup?

I guess I'm just trying to NOT have to re-develop the entire load, which if I don't get some advice from here I may have to do, but if anyone has had a similar experience, please offer your suggestions.

Cheers,

Archer.


27MAR11 -
Update for anyone who's interested;

Now using CCI 450 primers

No difference in accuracy and MV near to exactly the same as previous load.

No signs of high pressures, slight cratering still present, but no issue.

25.4grn 2206H - 3037fps ave
25.6grn 2206H - 3045fps ave
26.0grn 2206H - 3101fps ave.
 
Re: Loads for .223- 5.56


75 berger vld
25 varget
2.314 coal
cut out front of a 20 round mag for the extra length
consistent 1" all day from a 1:8 24" lothar walther
 
Re: Loads for .223- 5.56

Have you ever used Alliant Reloader 10X for .223 heavier than 55 gr? I was wondering if it would be useful for 62 gr sp.
 
Re: Loads for .223- 5.56

Bullet: Sierra Match King 77gr BTHP
Powder: 24.0gr Hodgdon Varget
Primer: CCI #BR4
Brass: Winchester
Trim: 1.750
Seated: Mag Length
Barrel: 18" WOA SPR w/ Wylde chamber
Twist: 1x7
Velocity: Will update


Bullet: Sierra Match King 77gr BTHP
Powder: 25.0gr Hodgdon Varget
Primer: CCI #BR4
Brass: LC
Trim: 1.750
Seated: Mag Length
Barrel: 18" WOA SPR w/ Wylde chamber
Twist: 1x7
Velocity: 2630

 
Re: Loads for .223- 5.56

Bullet: Hornady 55 VMax
Powder: 25.7gr Hodgdon Varget
Primer: CCI #BR4
Brass: Winchester
Seated: Mag Length
Barrel: 20 SPS Tact
Twist: 1x9
Velocity: 3160 fps average of 10

Bullet: Hornady 55 VMax
Powder: 25.7gr Hodgdon Varget
Primer: CCI #BR4
Brass: Winchester
Seated: Mag Length
Barrel: 20 SPS Tact
Twist: 1x9
Velocity: 3213 fps with AAC M41000 average of 5

Bullet: Hornady 55 VMax
Powder: 4.3 IMR Trail Boss
Primer: CCI #BR4
Brass: Winchester
Seated: Mag Length
Barrel: 20 SPS Tact
Twist: 1x9
Velocity: 1243 fps average of 5
 
Re: Loads for .223- 5.56

Anyone have a load for 69gr Scenar's part no 4PL5010
I have 100 that I would like to try in my new sps tactical.

Can I just use data for any 69gr pill for these ? well as long as I back off to a starting load.

Thanks Dave .

edit to add I am using Varget
 
Re: Loads for .223- 5.56

70gr Berger VLD (same BC as the 77gr SMK)
RL-15, 25.4grains
Winchester brass
CCI 41
Mag length (2.260")

Results from my 20" Noveske AR w/ 10x optic in 65*F, 500' DA, zero wind, good visibility, no mirage; prone supported:
2900fps (ES and SD an amazing 5 and 2 respectedly - not sure if I can continue to get that low)
0.50moa at 200yds (multiple bullets thru same hole)
moderate pressure signs (some flatness in primers)

WORK UP. IT IS A 5.56 PRESSURE LOAD - DO NOT USE IN .223 CHAMBER

Load development notes here:
http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=2546753&#Post2546753
 
Re: Loads for .223- 5.56

not sure if i posted these or not but here are my few loads I run

new M193 brass with all these

52gr hornady match
25.3gr WC846
CCI 400 primer

55gr FMJ
25gr WC 846
CCI 400 primer

62gr SS109
24.6gr WC 846
CCI 41 primer

75gr hornady match
24.0 (23.8gr to be safe) WC 846
CCI 400 primer

new winchester brass
75gr hornady match
24.1gr varget (pressure tested and this is a max sammi load 2710FPS out of a test barrel
CCI 400

new winchester brass
75gr hornady match
22.3gr H335 Not a super hot load but have gotten great results out of it
CCI 400
 
Re: Loads for .223- 5.56

75gr Hornady BTHP
22.0gr H335
CCI 400
COL: 2.250"

Testing my sniper wannabe skills. Former active duty Marine (0351) and current LEO (not sniper rated).....but would love to play one on TV!!!

Rifle was a Savage 12FV .223, B&C stock with a Mueller 4-16x 50 AO scope. Played around with this load last week and went out today to verify. Some 3-shot groups off of a rest at 100 yards.

20110630140511.jpg


20110630125123.jpg
 
Re: Loads for .223- 5.56

Rem 700 sps tactical
20inch barrel
1:9 twist

40grn V-max with 26.8 of benchmark, OAL: 2.300

50grn V-max with 26.0 of benchmark, OAL: 2.280

both of these loads will do .25-.5 inch 5 shot groups at 100 depending on how I am doing that day. I just developed these in the last month, and plan to explode some p dogs with em next week. I will update then!
 
Re: Loads for .223- 5.56

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Biner626</div><div class="ubbcode-body">Has anyone tried IMR 8208XBR with 77smk yet? Data/Results? </div></div>

Look here:

IMR 8208 XBR with 77 SMK's
 
Re: Loads for .223- 5.56

Just an FYI that Alliant finally added a bit of 2000mr data for the 77 smk. 25.2 grains at 2.26(mag length) is getting a published 2856 fps. I know that with the 175 smk 308 load, I was over their published velocity a grain and a half below the recipe. Seems promising, I'll prob try it with some hornady 75 gr bthp once my new upper arrives, and will post a full report. This stuff seems to get more accurate the more you pack the powder in. Come on 2900!
 
Re: Loads for .223- 5.56

Does anyone have any load data for the Speer 55g TNT HP in .223 Rem? My book has nothing......
 
Re: Loads for .223- 5.56

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: FIREMEDIC27</div><div class="ubbcode-body">Does anyone have any load data for the Speer 55g TNT HP in .223 Rem? My book has nothing......</div></div>
im running a sierra 55gr hpbt 26.8grs of varget nosler brass and cci 400 primers loaded mag length out of a 20 inch kreiger 1 in 9 twist, holds 3/8 at 100yds on calm winds. I know it isnt the speer bullet, but another option, hope this helps. you can slso go to hodgdons web site for load data . Loaddata.com is good but a paid site
 
Re: Loads for .223- 5.56

Lake City '11 brass
CCI #41 primer
IMR 8208XBR 24 grains
77 grain Sierra Matchking
2.26" COAL
18" WOA 1:7
2773 FPS
 
Re: Loads for .223- 5.56

New pet load:

16" bull barrel free floated AR
52g Sierra HPBT Match
WIN Brass
CCI BR4
26.4g Varget
Mag Length
Lee factory crimp

1" 10 shot groups @ 100yds from a bipod with a 1.5-5x scope
 
Re: Loads for .223- 5.56

max col ? just mesured 68gr hornady match to lands 2.510 rifle savage axis/ edge
my ? is who has this rifle and has any one else loaded this long
yes it still fits in the mag.
 
Re: Loads for .223- 5.56

AR15 LMT MRP
18" SS
Win Brass
Rem 7.5
53gr Vmax
26.0gr Varget
COAL 2.253-2.261" (It isn't tha picky. I just picked the range from the shortest to the longest in my last 50 loaded rounds.)

After fireforming win brass this load will shoot 5 shots 1/2 moa easily and with quite a few sub 1/2 moa. No velocity yet. New .223 win brass in this rifle will hover right around 1MOA. I'm guessing it's the difference in headspace.

No velocity yet but will report back.

 
Re: Loads for .223- 5.56

Remington Varmint Factory Barrel

52g SMK
CCI BR
22.0 gr Reloader 7

Without a bedding job, the rifle puts 5 into groups approaching .50" at 100. The fresh bedding is curing as I type and I am going to dink with the OAL.
 
Re: Loads for .223- 5.56

Just ran some Mex Match stuff with about .5" groups at 100.

Remington UMC; bullet replaced with 52g SMK. Shoots like gangbusters.
 
Re: Loads for .223- 5.56

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: nashlaw</div><div class="ubbcode-body">Remington Varmint Factory Barrel

52g SMK
CCI BR
22.0 gr Reloader 7

Without a bedding job, the rifle puts 5 into groups approaching .50" at 100. The fresh bedding is curing as I type and I am going to dink with the OAL.
</div></div>
Is this the same one I traded ya?
 
Re: Loads for .223- 5.56

That's it Bruce! I got it home and within a day or two, had the barrel cut back to 20"(short and stiff is the way I roll) and recrowned.

I was getting some good accuracy with the barreled action just bolted into a laminated varmint stock, but the worm really turned with the McMillan HTG and a bit of accraglas.

I think I told you I was going to have it rebarreled to 6/.223. Not any more. I am liking it the way it is.

By the way, it was my pleasure meeting with you.
 
Re: Loads for .223- 5.56

Out of a RRA 24" Varmint Upper AR:

Brass: Remington UMC Full resize
Primer: Federal Small Rifle (not magnum)
Powder: IMR4895 22gr
Bullet SMK 69gr
OAL: 2.25"
Light Crimp (just barely a crimp to keep bullet in place)

On 12/10/10 I first shot a .75MOA 10-shot group and a then a .95MOA 10-shot group as the barrel heated up. 47degrees, 10mph head wind (0 value), 30.075inHg
 
Re: Loads for .223- 5.56

Sierra 55g BlitzKing
25.1g Benchmark
F205M
Win brass

Out of 26" factory Savage, getting 0.4 - 0.6" groups.
Vel = 3340fps.
 
Re: Loads for .223- 5.56

I just tried some Accurate 2460 w/77gr SMK's and got super velocity up to 2834 @25.5gr but the accuracy was super shitty.
I have been getting just over .5" with 77gr SMK's and 24.2gr of Reloader 15. I haven't chronoed it yet but Im guessing its around 2650ish.
Im gonna try the 8208XBR next.

Oh ya the rifle details is a 18" Rainier (Shilen) ultra match Gisselle SSA and Viper PST. It started out to be a MK 12 mod O but I ran out of money and it got a JP forend and no BUIS. I have a PWS comp. on it but soon it will be sporting a Thunder Beast can.
 
Re: Loads for .223- 5.56

Hornady 53g VMax (seated -0.040" off lands)
Hodgdon Benchmark 25.3g
F205M
Rem brass

Velocity = 3400fps (26" barrel)
accuracy 0.3 - 0.4" groups
 
Re: Loads for .223- 5.56

i've been using tac, but early play with 8208 is more promising yet. 23.2 or 23.3 seems to be a sweet spot for more than a few users who've replied .
 
Re: Loads for .223- 5.56

SW Ammo 77 SMK
HCS Mark 12 Mod 1

DA 7434'

Average 11 rds

2716 fps

2684 fps Low
2741 fps High

SWAMMO77.jpg




My attempt to copy Mk262 ammo
HCS Mark 12 Mod 1
LC brass (cheaper than win brass, real Mk262 is stamped WCC fwiw)
CCI #41 primers
SMK 77gr
25.2gr Varget
2.26" Cartridge Overall Length
1.75" Case Length

Average of 27 rounds, DA 7474'

2754 fps

252gr.jpg


Slightly crunching powder, medium cratering, medium flattening. I could go a bit more, but this load shot 3/4 minute and I'm cool with that. The SW Ammo was definitely more accurate, at least 1/2 MOA. I didn't think it was that fast (the SW Ammo). I might back it off to 25gr Varget and see if it tightens up a bit, now that I think about it

 
Re: Loads for .223- 5.56

Enhanced accuracy of my load for Hornady 53g Vmax a bit by using H4895 instead of Benchmark.

Rem brass
F205M primer
H4895 25.9g
Hornady 53g Vmax kissing lands

Vel = 3411 (@ 39F)
Groups 0.2 - 0.4"
 
Re: Loads for .223- 5.56

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KSKevin</div><div class="ubbcode-body">Enhanced accuracy of my load for Hornady 53g Vmax a bit by using H4895 instead of Benchmark.

Rem brass
F205M primer
H4895 25.9g
Hornady 53g Vmax kissing lands

Vel = 3411 (@ 39F)
Groups 0.2 - 0.4" </div></div>

What's you oal??
 
Re: Loads for .223- 5.56

i shoot

24.5gr imr3031 (compressed)
55gr vmax
2.245 OAL (as long as i can get them and fit them in the mag)
cheap fiocchi primers (only thing i could find during primer shortage)

shooting them at around 2900fps out of my 16" barreled bushmaster AR15.

they shoots great for me.
 
Re: Loads for .223- 5.56

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KSKevin</div><div class="ubbcode-body">ogive length is 1.926". </div></div>

bolt gun or ar15??
 
Re: Loads for .223- 5.56

try a hornady 53gr bthp match.....with 22.5gr imr 4064 coal=2281 that shot one of the best groups with my bushmaster dcm at 5/16" group but that was the best group of 10 lol avr.450"
 
Re: Loads for .223- 5.56

but i loaded them in the chamber 1 at a time!
 
Re: Loads for .223- 5.56

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Frogman77</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KSKevin</div><div class="ubbcode-body">ogive length is 1.926". </div></div>

bolt gun or ar15?? </div></div>

Savage bolt, 26" barrel. Rifle is all factory stock.
 
Re: Loads for .223- 5.56

23.9 AA2520
PRVI 75 HPBT
LC often fired brass
Trimmed, primer pocket uniformed and deburred inside
CCI 450 primer
2.260
2614 fps

Barnes Precision Machine DMR Rifle-18” 1/8
moa or better accuracy
 
Re: Loads for .223- 5.56

23.8gr RL-10x
Hornady 55gr V-Max
Remington Brass
CCI 400 Primer
2897fps

RRA Elite Operator 2
16" Barrel
~.5-.6 MOA
 
Re: Loads for .223- 5.56

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: aviumvenator</div><div class="ubbcode-body">23.9 AA2520
PRVI 75 HPBT
LC often fired brass
Trimmed, primer pocket uniformed and deburred inside
CCI 450 primer
2.260
2614 fps

Barnes Precision Machine DMR Rifle-18” 1/8
moa or better accuracy
</div></div>

Do you have any groups you can post? .125 MOA is ridiculously good for a bolt gun and almost unheard of in a Semi.
 
Re: Loads for .223- 5.56

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: halcyon575</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: aviumvenator</div><div class="ubbcode-body">23.9 AA2520
PRVI 75 HPBT
LC often fired brass
Trimmed, primer pocket uniformed and deburred inside
CCI 450 primer
2.260
2614 fps

Barnes Precision Machine DMR Rifle-18” 1/8
moa or better accuracy
</div></div>

Do you have any groups you can post? .125 MOA is ridiculously good for a bolt gun and almost unheard of in a Semi.</div></div>

Yes, .125 MOA would be awesome and I would post pics if I had them but the 1/8 I posted referred to the barrel twist...1 in 8. My bad on the typing. I have been able to shoot the rifle 1 MOA or better.
 
Re: Loads for .223- 5.56

27.5 gr Varget
55 gr bulk fmjbt
WSR primer
Lake city Brass
2.260 +0/-.002 Case head to meplat

My 3 gun round used in m4 16" 1:9
for targets 2yd to 500yd
 
Re: Loads for .223- 5.56

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: gungneer</div><div class="ubbcode-body">27.5 gr Varget
55 gr bulk fmjbt
WSR primer
Lake city Brass
2.260 +0/-.002 Case head to meplat

My 3 gun round used in m4 16" 1:9
for targets 2yd to 500yd </div></div>

I'll bet that's a pretty full case!
 
Re: Loads for .223- 5.56

anyone got a load for a 5r 1/9 twist.

also looking for a subsonic load for the same rifle I am running an aac m4-2k

thanks
 
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