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Old 02-09-2019, 04:51 PM
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Fav. accuracy loads .223 Rem using 69 SMK



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Just got a new Ballistic Advantage Barrel in .223 Wylde, 16 inch, 1:8 twist. I have both Hodgdon Varget, and Hodgdon H4895 powders. What favorite accuracy loads do you like?

thanx

Also open to trying different powders, that will give best accuracy.
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Old 02-09-2019, 05:54 PM
DInghram
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For quite a few years my favorite load with 63-65 bullets has been 25.0 grains of BL-C(2).
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Old 02-09-2019, 06:08 PM
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Originally Posted by DInghram View Post
For quite a few years my favorite load with 63-65 bullets has been 25.0 grains of BL-C(2).
That's an idea, i never considered that powder.
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Old 02-09-2019, 06:24 PM
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In my 1-9 twist Kimber 24.4 varget gets it in the low.3 your mileage may vary!
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Old 02-09-2019, 06:35 PM
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75 grain AMax, H322, CCI BR4
Fire sorted Lapua brass with 2.4mm flash holes
Full length resize, minimal crimp to neck tension and align,
Best results 0.008 off the lands and 2680 fps avg mv

Savage/Shilen 26 inch 1:8 twist

Results with 69 gr SMK weren't as good as the AMax at 200 yards plus.

Last edited by jaia; 02-09-2019 at 06:54 PM.
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Old 02-10-2019, 06:53 PM
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With 69 SMKs, I liked 24gr IMR 4064. Varget's great too and not as temperature sensitive.
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Old 02-10-2019, 07:52 PM
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First overall on my best results list for a 1:8 twist Les Baer with Sierra Tipped Match Kings TMK # 7169 bullets between 2720 and 2766 fps out of an 18 inch barrel using N140 @ 2720 fps with a 5-round group average of 0.280. This was the best of all powder bullet combinations.
2nd best result overall was also with 69 gr TMKs #7169 bullets using Reloader 15 with 5 shot group average of 0.310.
6th overall and 3rd best 69 grain bullet was TMK #7169with CFE223 at 2787 fps with a group average of 0.363.

13th best and the 4th best 69 grain was with Nosler CC # 17101 bullets and N140 powder @ 2711 fps with a 5 round group average of 0.416.
20th best and 5th best 69 was another TMK #7169 bullet load with Varget @ 2666 fps with a 5-round group average of 0.452.

23rd best and 6th best 69 grain was with #1380 SMKs with N140 powder @ 2845 fps with a group average of 0.460.
25th best and 7th best 69 was also with 69 SMKs with CFE223 powder @ 2800 fps with a group average of 0.475.

I have had great results with 60, 69 and 77 grain Sierra TMKs which hold the top 3 places and the 5 through 7ht places on mu best average group size list.
I seat them out about 0.7 inches longer than Sierra's SAAMI recommended O.A.L.
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Old 02-11-2019, 12:05 PM
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My load for 69 SMK is 24.5 gns of Varget seated to 2.260 Mag length. My records show on my bolt action 1:8 Wylde chambered barrel the average was .538 with best group at .350. These are shot off a bench with bipod front and bunny ears sandbag rear. This was in LC brass. My Lapua brass would probably cut that down a little.

David
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Old 02-11-2019, 01:51 PM
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Quote:
Originally Posted by Flintlock28 View Post
Just got a new Ballistic Advantage Barrel in .223 Wylde, 16 inch, 1:8 twist. I have both Hodgdon Varget, and Hodgdon H4895 powders. What favorite accuracy loads do you like?

thanx

Also open to trying different powders, that will give best accuracy.
The following recipes are for my CZ527 Varmint (24") in .223 Rem (1:9") wearing a Nikon ProStaff 5 4.5~18x40. They were shot from a bench to 100 yards using my Caldwell Rock, Protektor narrow bag, Protektor bunny-ears rear bag, and Shooting Chrony Beta at 2 yards.

Speer #1032 HP 54.9gr
H335 24.2gr
CCI 400
Lake City 2008 cases @ 92.5gr (fired once, no trim)
Hornady comparator length 1.915"
Leap 0.000"
3,034fps
Extreme Spread (5 rounds) 35.72fps
Standard Deviation 13.34fps
Group 0.665"

Sierra #1375 HP 60.0gr
H335 25.5gr
CCI 400
Lake City 2008 cases @93.7gr (fired 2x, trimmed 1x)
Hornady comparator length 1.899"
Leap 0.005
3,079fps
Extreme Spread 63.75
Standard Deviation 25.86
Group 0.904"

Sierra MK #1380 69.1gr
Varget 26.4gr
CCI 400
92.45gr (fired 3x, trimmed 1x)
Hornady comparator length 1.908",
Leap 0.020
3,085fps
Extreme Spread 29.85fps
Standard Deviation 11.40fps
Group 0.666

Last edited by Squeezer; 02-11-2019 at 03:17 PM.
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  #10  
Old 02-18-2019, 04:43 PM
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24.5 - 25.0 grains Varget and a 69 Sierra has been a standard accuracy load for over 20 years. You may be able to tweak a slightly better load, but that if recipe won't shoot good for you then something is wrong with your gun, lol.
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Old 04-02-2019, 01:17 PM
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There are many suitable good powders for .223 Rem., but an older one not mentioned here, yet still very effective, is Winchester 748. It is good for bullet weights from 40 to 69 grains. This was once a darling of the short range benchrest world, until gradually being replaced. My bolt guns generally do best with a near max charge for commonly used bullet weights shown in standard reloading manuals, with good velocity and exceptional accuracy. Here is an example: 27grains W748, 50 through 53 grain polymer tipped bullet, Federal Gold Medal small rifle primer, cases weight sorted to .2 grains, with full BR prep, including neck turning. 24 or 26 inch, 1 in 9 twist rate barrels. 100yards https://imgur.com/68AMjV0 and 300 yards https://imgur.com/bP0nH9y

Last edited by Steve Newman; 04-09-2019 at 10:43 AM.
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