Load data for .22-250 Ackley Improved + .224 | 55gr | Sierra SBT GameKing

Recommended Powder(s): Accurate 4064, ReloadSwiss RS 52, ReloadSwiss RS 60, Rottweil R 902, Vihtavuori N540

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:	.22-250 Ackley Improved load data
Case Length (l3):	1.940" \| 49.3mm
Cartridge Length (C.O.L.):	2.394" \| 60.8mm
Seated Depth:	0.268" \| 6.8mm
Shank Seated Depth:	0.194" \| 4.9mm
Case Capacity:	46.9 Grains of Water \| 3.05 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	57986 psi \| 3998 bar
LID:	LID_B5747_C1041
Last updated:	2025-02-02
Recommended Twist Rate:	1:12 - 1:10

Load data for 164 loads in caliber .22-250 Ackley Improved with .224 | 55gr | Sierra SBT GameKing bullet and 82 powders such as Accurate 4064, ReloadSwiss RS 52, ReloadSwiss RS 60, Rottweil R 902, Vihtavuori N540. 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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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>>	88%	51532	89%	**20	98%
ADI AR 2208	<<locked>>	93%	50966	88%	**84	97%
Accurate 2015	<<locked>>	84%	51605	89%	**38	100%
Accurate 2200	<<locked>>	86%	51039	88%	**55	96%
Accurate 2495	<<locked>>	87%	51851	89%	**20	100%
Accurate 2520	<<locked>>	86%	51068	88%	**01	100%
[Accurate 2700]*	<<locked>>	93%	51416	89%	**76	92%
Accurate 4064 👍	<<locked>>	93%	51721	89%	**14	100%
Accurate 4350	<<locked>>	97%	44396	77%	**12	95%
Alliant AR-Comp	<<locked>>	86%	51387	89%	**94	100%
Alliant Reloder- TS 15.5	<<locked>>	93%	51517	89%	**27	99%
Alliant Reloder-15	<<locked>>	91%	51126	88%	**30	97%
[Alliant Reloder-16]*	<<locked>>	97%	43947	76%	**19	94%
Alliant Reloder-17	<<locked>>	97%	51793	89%	**25	98%
Baschieri & Pellagri 107	<<locked>>	87%	51024	88%	**17	97%
Hodgdon BL-C2	<<locked>>	86%	50865	88%	**20	99%
Hodgdon Benchmark	<<locked>>	85%	51184	88%	**42	99%
Hodgdon CFE223	<<locked>>	91%	51880	89%	**66	97%
Hodgdon H322	<<locked>>	84%	50908	88%	**01	100%
Hodgdon H380	<<locked>>	92%	51053	88%	**01	96%
[Hodgdon H414]*	<<locked>>	96%	51967	90%	**56	93%
Hodgdon Hybrid 100V	<<locked>>	96%	40045	69%	**81	95%
Hodgdon LVR	<<locked>>	97%	48965	84%	**97	95%
Hodgdon VARGET	<<locked>>	93%	51677	89%	**97	97%
Hodgdon TrailBoss	<<locked>>	96%	32967	57%	**51	100%
IMR 3031	<<locked>>	91%	50908	88%	**47	100%
IMR 4064	<<locked>>	94%	51605	89%	**94	97%
[IMR 4166 Enduron]*	<<locked>>	94%	52083	90%	**42	93%
[IMR 4451 Enduron]*	<<locked>>	96%	52054	90%	**78	93%
[IMR 4831]*	<<locked>>	97%	37840	65%	**32	92%
IMR 4895	<<locked>>	90%	51111	88%	**37	98%
IMR 8208 XBR	<<locked>>	86%	51561	89%	**84	99%
Lovex D073.6	<<locked>>	88%	51895	90%	**20	100%
Lovex S060	<<locked>>	87%	50995	88%	**35	98%
Lovex S062	<<locked>>	91%	50923	88%	**88	99%
[Lovex S065]*	<<locked>>	97%	49385	85%	**28	94%
[Lovex S070]*	<<locked>>	97%	47398	82%	**99	92%
Norma 201	<<locked>>	89%	52170	90%	**07	99%
Norma 202	<<locked>>	88%	50952	88%	**91	100%
Norma 203B	<<locked>>	91%	51619	89%	**30	98%
Norma URP	<<locked>>	97%	45063	78%	**28	95%
Ramshot Big Game	<<locked>>	91%	52170	90%	**56	98%
[Ramshot Hunter]*	<<locked>>	97%	44382	77%	**92	92%
Ramshot TAC	<<locked>>	86%	51619	89%	**68	95%
Ramshot Wild Boar	<<locked>>	86%	51010	88%	**04	98%
Ramshot X-Terminator	<<locked>>	83%	51010	88%	**51	98%
ReloadSwiss RS 14	<<locked>>	97%	33460	58%	**06	100%
[ReloadSwiss RS 50]*	<<locked>>	92%	51416	89%	**74	94%
ReloadSwiss RS 52 👍	<<locked>>	92%	51547	89%	**70	99%
ReloadSwiss RS 60 👍	<<locked>>	97%	50154	86%	**06	99%
[ReloadSwiss RS 62]*	<<locked>>	97%	44962	78%	**32	94%
[ReloadSwiss RS 70]*	<<locked>>	96%	44933	77%	**35	93%
Rottweil R 901	<<locked>>	86%	51634	89%	**81	100%
Rottweil R 902 👍	<<locked>>	90%	52011	90%	**91	99%
Rottweil R 903	<<locked>>	95%	51953	90%	**27	98%
[Rottweil R 907]*	<<locked>>	97%	52127	90%	**71	93%
SNPE Vectan SP 11	<<locked>>	94%	51459	89%	**43	98%
SNPE Vectan SP 7	<<locked>>	87%	50981	88%	**68	96%
SNPE Vectan SP 9	<<locked>>	89%	51982	90%	**14	98%
SNPE Vectan Tubal 3000	<<locked>>	87%	51880	89%	**25	100%
SNPE Vectan Tubal 5000	<<locked>>	93%	51097	88%	**96	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	97%	50009	86%	**76	93%
[Shooters World Long Rifle]*	<<locked>>	97%	49385	85%	**28	94%
Shooters World Match Rifle	<<locked>>	88%	51895	90%	**20	100%
Shooters World Precision	<<locked>>	91%	50923	88%	**88	99%
Somchem S321	<<locked>>	84%	52170	90%	**20	99%
Somchem S335	<<locked>>	88%	52011	90%	**25	100%
Somchem S341	<<locked>>	87%	51953	90%	**94	98%
Somchem S355	<<locked>>	95%	51779	89%	**14	98%
Somchem S365	<<locked>>	97%	39784	69%	**40	97%
Vihtavuori N130	<<locked>>	84%	51242	88%	**99	100%
Vihtavuori N133	<<locked>>	90%	51967	90%	**15	100%
Vihtavuori N135	<<locked>>	97%	51793	89%	**74	100%
Vihtavuori N140	<<locked>>	90%	51111	88%	**61	100%
Vihtavuori N150	<<locked>>	97%	46528	80%	**76	98%
Vihtavuori N160	<<locked>>	97%	49124	85%	**61	96%
Vihtavuori N530	<<locked>>	84%	50981	88%	**94	99%
Vihtavuori N540 👍	<<locked>>	91%	52141	90%	**04	100%
Vihtavuori N550	<<locked>>	96%	49371	85%	**07	96%
Winchester 6.5 StaBALL	<<locked>>	97%	47688	82%	**96	98%
Winchester 748	<<locked>>	84%	51474	89%	**43	99%
[Winchester 760]*	<<locked>>	96%	51967	90%	**56	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	41147	71%	**78	95%
[ADI AR 2208]*	<<locked>>	81%	35070	60%	**97	92%
Accurate 2015	<<locked>>	81%	46775	81%	**60	100%
[Accurate 2200]*	<<locked>>	81%	43758	75%	**01	94%
Accurate 2495	<<locked>>	81%	41930	72%	**20	100%
Accurate 2520	<<locked>>	81%	42873	74%	**30	99%
[Accurate 2700]*	<<locked>>	90%	45542	79%	**64	90%
Accurate 4064	<<locked>>	81%	35404	61%	**43	98%
[Accurate 4350]*	<<locked>>	89%	33837	58%	**40	90%
Alliant AR-Comp	<<locked>>	81%	42380	73%	**37	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	81%	34345	59%	**14	94%
[Alliant Reloder-15]*	<<locked>>	81%	36941	64%	**79	93%
[Alliant Reloder-16]*	<<locked>>	90%	35375	61%	**63	90%
[Alliant Reloder-17]*	<<locked>>	83%	32213	56%	**97	91%
[Baschieri & Pellagri 107]*	<<locked>>	81%	40741	70%	**81	94%
Hodgdon BL-C2	<<locked>>	81%	42873	74%	**50	97%
Hodgdon Benchmark	<<locked>>	81%	45469	78%	**20	98%
[Hodgdon CFE223]*	<<locked>>	81%	35781	62%	**66	91%
Hodgdon H322	<<locked>>	81%	45832	79%	**92	100%
[Hodgdon H380]*	<<locked>>	82%	35737	62%	**27	90%
[Hodgdon H414]*	<<locked>>	90%	42395	73%	**50	90%
[Hodgdon Hybrid 100V]*	<<locked>>	88%	30371	52%	**82	90%
[Hodgdon LVR]*	<<locked>>	88%	36970	64%	**05	90%
[Hodgdon VARGET]*	<<locked>>	81%	34650	60%	**81	91%
Hodgdon TrailBoss	<<locked>>	81%	26005	45%	**67	100%
IMR 3031	<<locked>>	81%	36869	64%	**32	99%
[IMR 4064]*	<<locked>>	81%	34505	59%	**74	92%
[IMR 4166 Enduron]*	<<locked>>	88%	42975	74%	**38	90%
[IMR 4451 Enduron]*	<<locked>>	90%	43918	76%	**87	90%
[IMR 4831]*	<<locked>>	93%	34084	59%	**14	90%
[IMR 4895]*	<<locked>>	81%	37739	65%	**25	94%
IMR 8208 XBR	<<locked>>	81%	43207	75%	**14	97%
Lovex D073.6	<<locked>>	81%	40074	69%	**61	98%
Lovex S060	<<locked>>	81%	42105	73%	**35	95%
Lovex S062	<<locked>>	81%	36709	63%	**53	95%
[Lovex S065]*	<<locked>>	89%	38580	67%	**69	90%
[Lovex S070]*	<<locked>>	93%	41974	72%	**74	90%
Norma 201	<<locked>>	81%	40640	70%	**45	96%
Norma 202	<<locked>>	81%	40582	70%	**58	99%
[Norma 203B]*	<<locked>>	81%	36332	63%	**66	93%
[Norma URP]*	<<locked>>	89%	34824	60%	**46	90%
[Ramshot Big Game]*	<<locked>>	81%	35955	62%	**63	93%
[Ramshot Hunter]*	<<locked>>	94%	40205	69%	**78	90%
[Ramshot TAC]*	<<locked>>	81%	43787	76%	**97	93%
Ramshot Wild Boar	<<locked>>	81%	42815	74%	**20	96%
Ramshot X-Terminator	<<locked>>	81%	47413	82%	**79	97%
ReloadSwiss RS 14	<<locked>>	81%	26513	46%	**23	100%
[ReloadSwiss RS 50]*	<<locked>>	85%	40263	69%	**19	90%
ReloadSwiss RS 52	<<locked>>	81%	34780	60%	**79	95%
[ReloadSwiss RS 60]*	<<locked>>	82%	30763	53%	**48	90%
[ReloadSwiss RS 62]*	<<locked>>	90%	35694	62%	**96	90%
[ReloadSwiss RS 70]*	<<locked>>	93%	39769	69%	**84	90%
Rottweil R 901	<<locked>>	81%	44512	77%	**33	99%
Rottweil R 902	<<locked>>	81%	38682	67%	**86	96%
[Rottweil R 903]*	<<locked>>	81%	31749	55%	**28	92%
[Rottweil R 907]*	<<locked>>	92%	44962	78%	**07	90%
[SNPE Vectan SP 11]*	<<locked>>	81%	32880	57%	**77	91%
[SNPE Vectan SP 7]*	<<locked>>	81%	41771	72%	**55	93%
SNPE Vectan SP 9	<<locked>>	81%	39914	69%	**48	95%
SNPE Vectan Tubal 3000	<<locked>>	81%	42076	73%	**15	99%
SNPE Vectan Tubal 5000	<<locked>>	81%	34795	60%	**35	98%
[SNPE Vectan Tubal 7000]*	<<locked>>	92%	41655	72%	**92	90%
[Shooters World Long Rifle]*	<<locked>>	89%	38580	67%	**69	90%
Shooters World Match Rifle	<<locked>>	81%	40074	69%	**61	98%
Shooters World Precision	<<locked>>	81%	36709	63%	**53	95%
Somchem S321	<<locked>>	81%	47529	82%	**25	98%
Somchem S335	<<locked>>	81%	41814	72%	**25	99%
Somchem S341	<<locked>>	81%	41611	72%	**64	95%
[Somchem S355]*	<<locked>>	81%	32837	57%	**45	92%
[Somchem S365]*	<<locked>>	86%	28079	48%	**59	90%
Vihtavuori N130	<<locked>>	81%	46340	80%	**01	100%
Vihtavuori N133	<<locked>>	81%	39378	68%	**69	100%
Vihtavuori N135	<<locked>>	81%	31299	54%	**05	98%
Vihtavuori N140	<<locked>>	81%	37710	65%	**69	98%
[Vihtavuori N150]*	<<locked>>	81%	27586	48%	**67	91%
[Vihtavuori N160]*	<<locked>>	87%	35462	61%	**20	90%
Vihtavuori N530	<<locked>>	81%	46209	80%	**02	98%
Vihtavuori N540	<<locked>>	81%	37811	65%	**89	98%
[Vihtavuori N550]*	<<locked>>	87%	35505	61%	**69	90%
[Winchester 6.5 StaBALL]*	<<locked>>	83%	30458	53%	**27	90%
Winchester 748	<<locked>>	81%	46499	80%	**42	99%
[Winchester 760]*	<<locked>>	90%	42395	73%	**50	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.