Load data for .223 Rem. (5.56 x 45 NATO) + .224 | 77gr | Sierra HPBT MatchKing

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.224 \| 77gr \| Sierra HPBT MatchKing
Manufacturer SKU:	9377G
Bullet Weight:	77gr \| 5.0g
Bullet Diameter:	0.224" \| 5.69mm
Bullet Length:	<<locked>>
Caliber:	.223 Rem. (5.56 x 45 NATO) 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:	62366 psi \| 4300 bar
LID:	LID_B5756_C134
Last updated:	2026-02-20
Recommended Twist Rate:	1:8 - 1:7

Load data for 144 loads in caliber .223 Rem. (5.56 x 45 NATO) with .224 | 77gr | Sierra HPBT MatchKing bullet and 72 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 2206H	<<locked>>	97%	45440	73%	**05	95%
ADI AR 2207	<<locked>>	90%	54868	88%	**57	100%
ADI AR 2219 👍	<<locked>>	93%	54752	88%	**36	100%
Accurate 1680	<<locked>>	83%	55898	90%	**67	100%
Accurate 2015 👍	<<locked>>	96%	51198	82%	**48	100%
[Accurate 2200]*	<<locked>>	97%	49951	80%	**15	93%
Accurate 2230	<<locked>>	96%	55477	89%	**07	97%
Accurate 2460	<<locked>>	97%	55593	89%	**26	99%
Accurate 2495	<<locked>>	97%	42757	69%	**12	100%
Accurate 2520	<<locked>>	96%	45455	73%	**31	98%
Accurate 4064	<<locked>>	97%	35215	56%	**64	97%
Alliant AR-Comp	<<locked>>	97%	45818	73%	**48	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	97%	36579	59%	**64	93%
Alliant Reloder-10x	<<locked>>	96%	55506	89%	**13	100%
[Alliant Reloder-15]*	<<locked>>	97%	39885	64%	**20	92%
Alliant Reloder-7	<<locked>>	89%	55317	89%	**51	100%
Baschieri & Pellagri 106	<<locked>>	93%	55448	89%	**38	100%
[Baschieri & Pellagri 107]*	<<locked>>	97%	45092	72%	**95	93%
[Bofors RP3]*	<<locked>>	97%	35505	57%	**61	93%
Hodgdon BL-C2	<<locked>>	96%	46398	74%	**57	96%
Hodgdon Benchmark	<<locked>>	97%	51706	83%	**28	98%
Hodgdon CFE BLK	<<locked>>	90%	55883	90%	**48	98%
Hodgdon H322 👍	<<locked>>	97%	50952	82%	**90	100%
Hodgdon H335 👍	<<locked>>	94%	55927	90%	**59	100%
Hodgdon H4198	<<locked>>	91%	55230	89%	**38	100%
Hodgdon H4895	<<locked>>	97%	45600	73%	**12	95%
IMR 3031	<<locked>>	96%	38827	62%	**46	99%
IMR 4198	<<locked>>	96%	55999	90%	**77	100%
IMR 4227	<<locked>>	85%	55347	89%	**95	100%
[IMR 4895]*	<<locked>>	97%	40509	65%	**49	93%
IMR 8208 XBR	<<locked>>	97%	48559	78%	**31	97%
Lovex D073.4	<<locked>>	95%	55303	89%	**10	99%
Lovex D073.5	<<locked>>	97%	55593	89%	**26	99%
Lovex D073.6	<<locked>>	97%	42293	68%	**79	97%
Lovex S053	<<locked>>	86%	55071	88%	**62	100%
Lovex S060	<<locked>>	96%	47195	76%	**52	95%
[Lovex S062]*	<<locked>>	96%	38986	63%	**77	94%
Norma 200	<<locked>>	92%	55477	89%	**90	100%
Norma 201	<<locked>>	97%	44338	71%	**59	96%
Norma 202	<<locked>>	97%	44440	71%	**85	98%
[Norma 203B]*	<<locked>>	97%	39073	63%	**13	93%
[Ramshot Big Game]*	<<locked>>	97%	40059	64%	**16	92%
[Ramshot TAC]*	<<locked>>	97%	50328	81%	**31	92%
Ramshot Wild Boar	<<locked>>	97%	47413	76%	**38	95%
Ramshot X-Terminator	<<locked>>	97%	54230	87%	**80	96%
ReloadSwiss RS 36	<<locked>>	85%	55564	89%	**31	100%
ReloadSwiss RS 40	<<locked>>	97%	55956	90%	**40	99%
[ReloadSwiss RS 52]*	<<locked>>	96%	41379	66%	**95	92%
[ReloadSwiss RS 60]*	<<locked>>	97%	35708	57%	**70	93%
Rottweil R 901	<<locked>>	96%	47964	77%	**12	99%
Rottweil R 902	<<locked>>	96%	41597	67%	**03	95%
SNPE Vectan BA6 1/2	<<locked>>	89%	55056	88%	**08	100%
SNPE Vectan SP 10 👍	<<locked>>	93%	55811	89%	**49	100%
[SNPE Vectan SP 7]*	<<locked>>	97%	46833	75%	**85	92%
[SNPE Vectan SP 9]*	<<locked>>	96%	43627	70%	**66	94%
SNPE Vectan Tubal 3000	<<locked>>	97%	47964	77%	**52	99%
SNPE Vectan Tubal 5000	<<locked>>	97%	38348	61%	**08	98%
Shooters World Match Rifle	<<locked>>	97%	42293	68%	**79	97%
[Shooters World Precision]*	<<locked>>	96%	38986	63%	**77	94%
Shooters World Tactical Rifle	<<locked>>	94%	55912	90%	**84	98%
Somchem S321	<<locked>>	97%	52692	84%	**17	98%
Somchem S335	<<locked>>	97%	45818	73%	**43	99%
[Somchem S341]*	<<locked>>	97%	45861	74%	**85	94%
Vihtavuori N120	<<locked>>	93%	55695	89%	**15	100%
Vihtavuori N130	<<locked>>	96%	52025	83%	**15	100%
Vihtavuori N133	<<locked>>	97%	43714	70%	**07	100%
Vihtavuori N135	<<locked>>	97%	32938	53%	**79	98%
Vihtavuori N140	<<locked>>	96%	40582	65%	**97	98%
Vihtavuori N530	<<locked>>	97%	52069	83%	**90	98%
Vihtavuori N540	<<locked>>	97%	41176	66%	**39	98%
Winchester 748	<<locked>>	97%	51372	82%	**33	98%
Winchester StaBALL Match	<<locked>>	96%	55129	88%	**62	97%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	87%	33678	54%	**65	90%
ADI AR 2207	<<locked>>	81%	41133	66%	**64	100%
ADI AR 2219	<<locked>>	81%	36492	59%	**38	97%
Accurate 1680	<<locked>>	81%	52373	84%	**18	100%
Accurate 2015	<<locked>>	81%	31691	51%	**06	98%
[Accurate 2200]*	<<locked>>	90%	40437	65%	**51	90%
[Accurate 2230]*	<<locked>>	81%	32706	52%	**16	91%
[Accurate 2460]*	<<locked>>	81%	32256	52%	**26	93%
Accurate 2495	<<locked>>	81%	25135	40%	**28	95%
[Accurate 2520]*	<<locked>>	81%	26687	43%	**41	91%
[Accurate 4064]*	<<locked>>	82%	22263	36%	**29	90%
Alliant AR-Comp	<<locked>>	81%	27659	44%	**80	99%
[Alliant Reloder- TS 15.5]*	<<locked>>	92%	31125	50%	**36	90%
Alliant Reloder-10x	<<locked>>	81%	34621	56%	**82	99%
[Alliant Reloder-15]*	<<locked>>	93%	35447	57%	**28	90%
Alliant Reloder-7	<<locked>>	81%	42989	69%	**74	100%
Baschieri & Pellagri 106	<<locked>>	81%	37434	60%	**59	98%
[Baschieri & Pellagri 107]*	<<locked>>	92%	38769	62%	**74	90%
[Bofors RP3]*	<<locked>>	93%	30777	49%	**52	91%
[Hodgdon BL-C2]*	<<locked>>	84%	30095	48%	**23	90%
[Hodgdon Benchmark]*	<<locked>>	81%	32227	52%	**70	92%
Hodgdon CFE BLK	<<locked>>	81%	41655	67%	**25	95%
Hodgdon H322	<<locked>>	81%	31038	50%	**16	96%
Hodgdon H335	<<locked>>	81%	35984	58%	**31	96%
Hodgdon H4198	<<locked>>	81%	40973	66%	**18	98%
[Hodgdon H4895]*	<<locked>>	85%	31633	51%	**33	90%
[IMR 3031]*	<<locked>>	81%	24207	39%	**72	93%
IMR 4198	<<locked>>	81%	36579	59%	**75	100%
IMR 4227	<<locked>>	81%	49124	79%	**13	100%
[IMR 4895]*	<<locked>>	91%	33750	54%	**05	90%
[IMR 8208 XBR]*	<<locked>>	81%	30110	48%	**57	90%
[Lovex D073.4]*	<<locked>>	81%	34098	55%	**56	94%
[Lovex D073.5]*	<<locked>>	81%	32256	52%	**26	93%
[Lovex D073.6]*	<<locked>>	82%	25599	41%	**08	91%
Lovex S053	<<locked>>	81%	47950	77%	**70	100%
[Lovex S060]*	<<locked>>	85%	33562	54%	**90	90%
[Lovex S062]*	<<locked>>	87%	29283	47%	**64	90%
Norma 200	<<locked>>	81%	39291	63%	**54	100%
[Norma 201]*	<<locked>>	83%	29066	47%	**41	90%
[Norma 202]*	<<locked>>	81%	27021	43%	**15	92%
[Norma 203B]*	<<locked>>	92%	33286	53%	**88	90%
[Ramshot Big Game]*	<<locked>>	94%	36579	59%	**44	90%
[Ramshot TAC]*	<<locked>>	93%	44193	71%	**23	90%
[Ramshot Wild Boar]*	<<locked>>	87%	34563	55%	**92	90%
[Ramshot X-Terminator]*	<<locked>>	83%	34708	56%	**39	90%
ReloadSwiss RS 36	<<locked>>	81%	49647	80%	**56	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	33489	54%	**52	94%
[ReloadSwiss RS 52]*	<<locked>>	93%	36927	59%	**00	90%
[ReloadSwiss RS 60]*	<<locked>>	93%	31923	51%	**65	90%
[Rottweil R 901]*	<<locked>>	81%	30356	49%	**60	94%
[Rottweil R 902]*	<<locked>>	85%	29399	47%	**38	90%
SNPE Vectan BA6 1/2	<<locked>>	81%	44759	72%	**80	100%
SNPE Vectan SP 10	<<locked>>	81%	36927	59%	**44	96%
[SNPE Vectan SP 7]*	<<locked>>	93%	41394	66%	**90	90%
[SNPE Vectan SP 9]*	<<locked>>	89%	34171	55%	**75	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	28993	46%	**85	93%
[SNPE Vectan Tubal 5000]*	<<locked>>	81%	23540	38%	**51	91%
[Shooters World Match Rifle]*	<<locked>>	82%	25599	41%	**08	91%
[Shooters World Precision]*	<<locked>>	87%	29283	47%	**64	90%
[Shooters World Tactical Rifle]*	<<locked>>	81%	35824	57%	**59	92%
[Somchem S321]*	<<locked>>	81%	31082	50%	**13	91%
[Somchem S335]*	<<locked>>	81%	28384	46%	**92	94%
[Somchem S341]*	<<locked>>	88%	34882	56%	**72	90%
Vihtavuori N120	<<locked>>	81%	39088	63%	**82	100%
Vihtavuori N130	<<locked>>	81%	32634	52%	**83	99%
Vihtavuori N133	<<locked>>	81%	27021	43%	**62	96%
[Vihtavuori N135]*	<<locked>>	81%	20581	33%	**24	91%
[Vihtavuori N140]*	<<locked>>	81%	25150	40%	**39	92%
[Vihtavuori N530]*	<<locked>>	81%	30661	49%	**87	91%
[Vihtavuori N540]*	<<locked>>	81%	25135	40%	**59	91%
[Winchester 748]*	<<locked>>	81%	30197	48%	**13	91%
[Winchester StaBALL Match]*	<<locked>>	81%	32735	52%	**56	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