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

Recommended Powder(s):

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:	<<locked>>
Caliber:	.223 Rem. load data
Case Length (l3):	1.759" \| 44.7mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	28.8 Grains of Water \| 1.87 cm³
Primer Size:	Small Rifle (SR)
Max. allowed Pressure:	55114 psi \| 3800 bar
LID:	LID_B5747_C135
Last updated:	2026-02-20
Recommended Twist Rate:	1:12 - 1:10

Load data for 98 loads in caliber .223 Rem. with .224 | 55gr | Sierra SBT GameKing bullet and 49 powder(s). 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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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.
Case Length (Inch)
Case Length (mm)
CaseCapacity (GoW)
Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
Barrel Length (cm)
Safety Buffer (%)
.

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 2207 👍	<<locked>>	90%	48907	89%	**91	100%
ADI AR 2219	<<locked>>	93%	49255	89%	**40	98%
Accurate 2015	<<locked>>	97%	45397	82%	**35	99%
[Accurate 2230]*	<<locked>>	96%	49342	90%	**71	93%
Accurate 2460	<<locked>>	97%	48718	88%	**94	95%
Accurate 2495	<<locked>>	97%	36187	66%	**46	97%
[Accurate 2520]*	<<locked>>	97%	39740	72%	**79	93%
Alliant AR-Comp	<<locked>>	97%	39407	71%	**09	99%
Alliant Reloder-10x 👍	<<locked>>	96%	48849	89%	**23	100%
Alliant Reloder-7 👍	<<locked>>	89%	49095	89%	**68	100%
Baschieri & Pellagri 106	<<locked>>	93%	48892	89%	**12	98%
[Hodgdon Benchmark]*	<<locked>>	97%	46427	84%	**02	94%
[Hodgdon CFE BLK]*	<<locked>>	89%	49356	90%	**05	94%
Hodgdon H322	<<locked>>	97%	45049	82%	**64	97%
Hodgdon H335	<<locked>>	94%	48863	89%	**30	97%
Hodgdon H4198	<<locked>>	91%	48747	88%	**25	97%
Hodgdon TrailBoss	<<locked>>	96%	29805	54%	**09	100%
[IMR 3031]*	<<locked>>	96%	33910	62%	**67	94%
IMR 4198 👍	<<locked>>	95%	48776	88%	**77	100%
IMR 4227	<<locked>>	85%	49255	89%	**22	100%
[IMR 8208 XBR]*	<<locked>>	97%	42714	77%	**72	92%
Lovex D073.4	<<locked>>	95%	49313	89%	**84	95%
Lovex D073.5	<<locked>>	96%	47848	87%	**74	95%
[Lovex D073.6]*	<<locked>>	97%	36434	66%	**94	92%
Lovex S053	<<locked>>	86%	49385	90%	**99	100%
Norma 200 👍	<<locked>>	92%	49023	89%	**07	100%
[Norma 202]*	<<locked>>	97%	38522	70%	**23	94%
[Ramshot X-Terminator]*	<<locked>>	97%	48921	89%	**48	92%
ReloadSwiss RS 14	<<locked>>	96%	29530	54%	**52	100%
ReloadSwiss RS 36	<<locked>>	85%	49313	89%	**61	100%
ReloadSwiss RS 40	<<locked>>	97%	48907	89%	**04	96%
Rottweil R 901	<<locked>>	97%	42830	78%	**79	95%
SNPE Vectan BA6 1/2	<<locked>>	89%	49429	90%	**38	100%
SNPE Vectan SP 10	<<locked>>	93%	49458	90%	**33	97%
SNPE Vectan Tubal 3000	<<locked>>	97%	42293	77%	**00	95%
[SNPE Vectan Tubal 5000]*	<<locked>>	97%	33866	61%	**23	93%
[Shooters World Match Rifle]*	<<locked>>	97%	36434	66%	**94	92%
[Shooters World Tactical Rifle]*	<<locked>>	94%	49559	90%	**51	93%
[Somchem S321]*	<<locked>>	97%	46688	85%	**77	94%
Somchem S335	<<locked>>	97%	40611	74%	**97	96%
Vihtavuori N120	<<locked>>	93%	49530	90%	**45	100%
Vihtavuori N130	<<locked>>	96%	46151	84%	**09	99%
Vihtavuori N133	<<locked>>	96%	37811	69%	**48	97%
[Vihtavuori N135]*	<<locked>>	97%	28355	51%	**67	92%
[Vihtavuori N140]*	<<locked>>	97%	36013	65%	**28	93%
[Vihtavuori N530]*	<<locked>>	97%	45411	82%	**41	93%
[Vihtavuori N540]*	<<locked>>	97%	35897	65%	**51	93%
[Winchester 748]*	<<locked>>	97%	45440	82%	**81	94%
[Winchester StaBALL Match]*	<<locked>>	96%	49168	89%	**20	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2207	<<locked>>	81%	36071	65%	**48	100%
[ADI AR 2219]*	<<locked>>	81%	32489	59%	**69	92%
[Accurate 2015]*	<<locked>>	81%	27238	49%	**08	93%
[Accurate 2230]*	<<locked>>	91%	40567	74%	**00	90%
[Accurate 2460]*	<<locked>>	87%	34708	63%	**02	90%
[Accurate 2495]*	<<locked>>	84%	23569	43%	**82	90%
[Accurate 2520]*	<<locked>>	92%	32677	59%	**02	90%
[Alliant AR-Comp]*	<<locked>>	81%	23975	43%	**43	93%
Alliant Reloder-10x	<<locked>>	81%	29965	54%	**07	95%
Alliant Reloder-7	<<locked>>	81%	37579	68%	**38	98%
[Baschieri & Pellagri 106]*	<<locked>>	81%	33112	60%	**80	94%
[Hodgdon Benchmark]*	<<locked>>	89%	36550	66%	**85	90%
[Hodgdon CFE BLK]*	<<locked>>	82%	38914	71%	**99	90%
[Hodgdon H322]*	<<locked>>	82%	28660	52%	**51	90%
[Hodgdon H335]*	<<locked>>	81%	31430	57%	**30	90%
[Hodgdon H4198]*	<<locked>>	81%	36564	66%	**66	94%
Hodgdon TrailBoss	<<locked>>	81%	23482	43%	**55	100%
[IMR 3031]*	<<locked>>	90%	27572	50%	**67	90%
IMR 4198	<<locked>>	81%	32242	58%	**17	97%
IMR 4227	<<locked>>	81%	44179	80%	**36	100%
[IMR 8208 XBR]*	<<locked>>	93%	38435	70%	**81	90%
[Lovex D073.4]*	<<locked>>	87%	35505	64%	**02	90%
[Lovex D073.5]*	<<locked>>	88%	34708	63%	**02	90%
[Lovex D073.6]*	<<locked>>	94%	32677	59%	**02	90%
Lovex S053	<<locked>>	81%	42815	78%	**87	100%
Norma 200	<<locked>>	81%	34272	62%	**08	98%
[Norma 202]*	<<locked>>	90%	30850	56%	**26	90%
[Ramshot X-Terminator]*	<<locked>>	95%	44976	82%	**76	90%
ReloadSwiss RS 14	<<locked>>	81%	23409	42%	**98	100%
ReloadSwiss RS 36	<<locked>>	81%	43540	79%	**59	100%
[ReloadSwiss RS 40]*	<<locked>>	85%	33707	61%	**72	90%
[Rottweil R 901]*	<<locked>>	86%	30908	56%	**94	90%
SNPE Vectan BA6 1/2	<<locked>>	81%	40103	73%	**90	100%
[SNPE Vectan SP 10]*	<<locked>>	81%	32358	59%	**59	91%
[SNPE Vectan Tubal 3000]*	<<locked>>	87%	30705	56%	**31	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	91%	28761	52%	**79	90%
[Shooters World Match Rifle]*	<<locked>>	94%	32677	59%	**02	90%
[Shooters World Tactical Rifle]*	<<locked>>	88%	40292	73%	**71	90%
[Somchem S321]*	<<locked>>	90%	37289	68%	**81	90%
[Somchem S335]*	<<locked>>	85%	28152	51%	**85	90%
Vihtavuori N120	<<locked>>	81%	33576	61%	**49	100%
[Vihtavuori N130]*	<<locked>>	81%	28529	52%	**05	94%
[Vihtavuori N133]*	<<locked>>	82%	24511	44%	**70	90%
[Vihtavuori N135]*	<<locked>>	93%	25556	46%	**72	90%
[Vihtavuori N140]*	<<locked>>	91%	29921	54%	**67	90%
[Vihtavuori N530]*	<<locked>>	92%	38290	69%	**94	90%
[Vihtavuori N540]*	<<locked>>	92%	31299	57%	**30	90%
[Winchester 748]*	<<locked>>	91%	37115	67%	**90	90%
[Winchester StaBALL Match]*	<<locked>>	92%	42627	77%	**89	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.

<<locked>>... you need to buy an access license to unlock the data