Load data for .223 Ackley Improved + .224 | 55gr | Sierra SBT GameKing

Recommended Powder(s): Accurate 2015, Alliant AR-Comp, Alliant Reloder-10x, Hodgdon H322, Vihtavuori N130

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.224 \| 55gr \| Sierra SBT GameKing
Manufacturer SKU:	1365
Bullet Weight:	55gr \| 3.6g
Bullet Diameter:	0.224" \| 5.69mm
Bullet Length:	0.722" \| 18.3mm
Caliber:	.223 Ackley Improved load data
Case Length (l3):	1.760" \| 44.7mm
Cartridge Length (C.O.L.):	2.226" \| 56.5mm
Seated Depth:	0.256" \| 6.5mm
Shank Seated Depth:	0.181" \| 4.6mm
Case Capacity:	32.4 Grains of Water \| 2.10 cm³
Primer Size:	Small Rifle (SR)
Max. allowed Pressure:	55114 psi \| 3800 bar
LID:	LID_B5747_C136
Last updated:	2025-02-02
Recommended Twist Rate:	1:12 - 1:10

Load data for 116 loads in caliber .223 Ackley Improved with .224 | 55gr | Sierra SBT GameKing bullet and 58 powders such as Accurate 2015, Alliant AR-Comp, Alliant Reloder-10x, Hodgdon H322, Vihtavuori N130. The key underlying parameters are shown in the table above.

Important Notice: DO NOT go below Minimum Charge or above Maximum Charge unless there are reasons. Since xxlreloading.com has no control over the equipment and components used by the customer and the data used in connection with the website, any responsibility and liability for the results achieved is rejected. Also see our Terms of Service.

Questions regarding the load data: Please read the information in the next tab "Explanations".
A load must fulfill certain criteria to be listed in the default view below - see "powder criteria to fulfill to be listed".

Our load data might deviate from other sources - see the "most common reasons for deviations".

All loads are based on the bullet and case dimensions shown under "Load Specifications" - see "reloading suggestions" if you deviate.

You can set your specifications in the "Personalized Load Calculator".

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Max FR*
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Barrel Length (cm)
Safety Buffer (%)
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Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

Our default view only displays powders/loads that fulfill certain criteria: Max pressure of a load <=90% of Max. Standardized Pressure. Fill Rate (Min FR): >80% and <100% for rife loads, >60% and <100% for pistol loads. Min. Propellant Combustion (Min z): >90% for rifle loads , >80% for pistol/revolver loads. Relax these criteria at your own risk to potentially get more powders shown in the load tables.

Click on the desired row in the tables below to add a specific load / powder to your Diary and manage there.

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	97%	46572	84%	**50	93%
ADI AR 2207	<<locked>>	86%	47892	87%	**27	100%
ADI AR 2219	<<locked>>	89%	48240	88%	**96	99%
Accurate 2015 👍	<<locked>>	94%	48269	88%	**53	100%
[Accurate 2230]*	<<locked>>	91%	48080	87%	**27	94%
Accurate 2460	<<locked>>	92%	49037	89%	**63	96%
Accurate 2495	<<locked>>	96%	43004	78%	**36	99%
Accurate 2520	<<locked>>	96%	45919	83%	**63	97%
Accurate 4064	<<locked>>	96%	35418	64%	**59	95%
Alliant AR-Comp 👍	<<locked>>	96%	45150	82%	**82	100%
Alliant Reloder-10x 👍	<<locked>>	92%	49226	89%	**92	100%
Alliant Reloder-7	<<locked>>	86%	49559	90%	**30	100%
Baschieri & Pellagri 106	<<locked>>	88%	48341	88%	**64	99%
Hodgdon BL-C2	<<locked>>	96%	47471	86%	**96	95%
Hodgdon Benchmark	<<locked>>	94%	47819	87%	**07	96%
Hodgdon CFE BLK	<<locked>>	85%	48979	89%	**77	95%
Hodgdon H322 👍	<<locked>>	95%	49124	89%	**15	99%
Hodgdon H335	<<locked>>	89%	48559	88%	**89	98%
Hodgdon H4198	<<locked>>	87%	48994	89%	**07	98%
Hodgdon TrailBoss	<<locked>>	95%	29907	54%	**69	100%
IMR 3031	<<locked>>	96%	39233	71%	**74	98%
IMR 4198	<<locked>>	91%	49255	89%	**53	100%
IMR 8208 XBR	<<locked>>	96%	47805	87%	**43	95%
Lovex D073.4	<<locked>>	91%	49516	90%	**59	96%
Lovex D073.5	<<locked>>	92%	48298	88%	**56	96%
Lovex D073.6	<<locked>>	96%	42482	77%	**97	96%
[Lovex S060]*	<<locked>>	96%	47311	86%	**81	93%
[Lovex S062]*	<<locked>>	96%	38957	71%	**79	92%
Norma 200	<<locked>>	88%	49501	90%	**79	100%
[Norma 201]*	<<locked>>	96%	44135	80%	**77	94%
Norma 202	<<locked>>	96%	43947	80%	**00	97%
[Ramshot Wild Boar]*	<<locked>>	97%	49008	89%	**92	94%
[Ramshot X-Terminator]*	<<locked>>	93%	48776	89%	**17	93%
ReloadSwiss RS 14	<<locked>>	94%	29762	54%	**14	100%
ReloadSwiss RS 40	<<locked>>	92%	48544	88%	**69	97%
[ReloadSwiss RS 52]*	<<locked>>	96%	38101	69%	**15	92%
Rottweil R 901	<<locked>>	96%	48878	89%	**69	98%
[Rottweil R 902]*	<<locked>>	96%	41916	76%	**18	93%
SNPE Vectan BA6 1/2	<<locked>>	85%	49211	89%	**87	100%
SNPE Vectan SP 10	<<locked>>	88%	48428	88%	**89	98%
[SNPE Vectan SP 9]*	<<locked>>	96%	44556	81%	**94	92%
SNPE Vectan Tubal 3000	<<locked>>	96%	47892	87%	**84	98%
SNPE Vectan Tubal 5000	<<locked>>	96%	38479	70%	**07	97%
Shooters World Match Rifle	<<locked>>	96%	42482	77%	**97	96%
[Shooters World Precision]*	<<locked>>	96%	38957	71%	**79	92%
[Shooters World Tactical Rifle]*	<<locked>>	89%	47703	87%	**00	94%
Somchem S321	<<locked>>	94%	48660	88%	**82	96%
Somchem S335	<<locked>>	96%	45876	83%	**68	98%
[Somchem S341]*	<<locked>>	97%	47253	86%	**23	93%
Vihtavuori N120	<<locked>>	88%	48472	88%	**81	100%
Vihtavuori N130 👍	<<locked>>	94%	48878	89%	**23	100%
Vihtavuori N133	<<locked>>	96%	42975	78%	**15	99%
Vihtavuori N135	<<locked>>	97%	33286	60%	**64	96%
Vihtavuori N140	<<locked>>	97%	42192	77%	**35	97%
Vihtavuori N530	<<locked>>	95%	48936	89%	**89	96%
Vihtavuori N540	<<locked>>	96%	41075	75%	**35	96%
Winchester 748	<<locked>>	95%	48936	89%	**32	96%
[Winchester StaBALL Match]*	<<locked>>	92%	48167	87%	**86	94%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	91%	38827	70%	**79	90%
ADI AR 2207	<<locked>>	81%	41046	74%	**05	100%
ADI AR 2219	<<locked>>	81%	37246	68%	**63	96%
Accurate 2015	<<locked>>	81%	31778	58%	**95	96%
[Accurate 2230]*	<<locked>>	84%	36941	67%	**90	90%
[Accurate 2460]*	<<locked>>	81%	32561	59%	**05	91%
[Accurate 2495]*	<<locked>>	81%	25411	46%	**84	93%
[Accurate 2520]*	<<locked>>	84%	30008	54%	**82	90%
[Accurate 4064]*	<<locked>>	87%	26078	47%	**87	90%
Alliant AR-Comp	<<locked>>	81%	27601	50%	**46	97%
Alliant Reloder-10x	<<locked>>	81%	35027	64%	**97	98%
Alliant Reloder-7	<<locked>>	81%	42931	78%	**12	100%
Baschieri & Pellagri 106	<<locked>>	81%	37855	69%	**58	97%
[Hodgdon BL-C2]*	<<locked>>	88%	35346	64%	**23	90%
[Hodgdon Benchmark]*	<<locked>>	82%	33765	61%	**85	91%
[Hodgdon CFE BLK]*	<<locked>>	81%	42438	77%	**46	93%
[Hodgdon H322]*	<<locked>>	81%	31372	57%	**02	93%
[Hodgdon H335]*	<<locked>>	81%	36245	66%	**33	94%
Hodgdon H4198	<<locked>>	81%	40727	74%	**33	97%
Hodgdon TrailBoss	<<locked>>	81%	24308	44%	**31	100%
[IMR 3031]*	<<locked>>	82%	25063	45%	**48	90%
IMR 4198	<<locked>>	81%	36608	66%	**94	99%
[IMR 8208 XBR]*	<<locked>>	86%	34418	62%	**48	90%
[Lovex D073.4]*	<<locked>>	81%	33997	62%	**31	91%
[Lovex D073.5]*	<<locked>>	81%	31966	58%	**92	90%
[Lovex D073.6]*	<<locked>>	86%	30008	54%	**82	90%
[Lovex S060]*	<<locked>>	90%	39697	72%	**13	90%
[Lovex S062]*	<<locked>>	93%	34925	63%	**77	91%
Norma 200	<<locked>>	81%	39595	72%	**82	99%
[Norma 201]*	<<locked>>	88%	34084	62%	**44	90%
[Norma 202]*	<<locked>>	82%	28239	51%	**03	90%
[Ramshot Wild Boar]*	<<locked>>	91%	39537	72%	**92	90%
[Ramshot X-Terminator]*	<<locked>>	86%	39581	72%	**36	90%
ReloadSwiss RS 14	<<locked>>	81%	24279	44%	**73	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	33620	61%	**35	92%
[ReloadSwiss RS 52]*	<<locked>>	93%	34272	62%	**13	90%
[Rottweil R 901]*	<<locked>>	81%	30603	56%	**40	91%
[Rottweil R 902]*	<<locked>>	90%	35041	64%	**54	90%
SNPE Vectan BA6 1/2	<<locked>>	81%	44092	80%	**08	100%
SNPE Vectan SP 10	<<locked>>	81%	37565	68%	**56	95%
[SNPE Vectan SP 9]*	<<locked>>	93%	40074	73%	**92	91%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	29501	54%	**57	91%
[SNPE Vectan Tubal 5000]*	<<locked>>	83%	25628	46%	**46	90%
[Shooters World Match Rifle]*	<<locked>>	86%	30008	54%	**82	90%
[Shooters World Precision]*	<<locked>>	93%	34925	63%	**77	91%
[Shooters World Tactical Rifle]*	<<locked>>	82%	36825	67%	**64	91%
[Somchem S321]*	<<locked>>	83%	33779	61%	**48	90%
[Somchem S335]*	<<locked>>	81%	28732	52%	**54	92%
[Somchem S341]*	<<locked>>	92%	40828	74%	**92	91%
Vihtavuori N120	<<locked>>	81%	38638	70%	**13	100%
Vihtavuori N130	<<locked>>	81%	32547	59%	**72	97%
[Vihtavuori N133]*	<<locked>>	81%	27311	50%	**21	94%
[Vihtavuori N135]*	<<locked>>	86%	23728	43%	**62	91%
[Vihtavuori N140]*	<<locked>>	83%	27151	49%	**41	90%
[Vihtavuori N530]*	<<locked>>	85%	34795	63%	**71	90%
[Vihtavuori N540]*	<<locked>>	85%	28674	52%	**17	91%
[Winchester 748]*	<<locked>>	83%	32938	60%	**54	90%
[Winchester StaBALL Match]*	<<locked>>	85%	37420	68%	**46	90%

Start Load - Barrel Length: 23.60''

Any powder missing? Then click here.

FR ... fill rate of the cartridge in percent

MaxP ... max. pressure of load in psi or bar

% ... max. pressure of load in percent of the maximum allowed pressure for this caliber

V(0) ... muzzle velocity in feet per second (fps) or meters per second (m/s)

z ... powder burnt in percent

[...] *... not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.

[...] ²... fill rate low - you might want to consider using a filler to ensure proper ignition.

[...] ᴾ... possible press load - work up slowly to this load while watching for signs of excessive pressure.

👍 ... recommended powder/load for this caliber and bullet combination based on its ballistic performance.