Load data for 7 mm B.R. Rem. + .284 | 175gr | Sierra HPBT MatchKing

Recommended Powder(s): Accurate 2520, Somchem S321, Vihtavuori N530, Winchester 748, Winchester StaBALL Match

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.284 \| 175gr \| Sierra HPBT MatchKing
Manufacturer SKU:	1975
Bullet Weight:	175gr \| 11.3g
Bullet Diameter:	0.284" \| 7.21mm
Bullet Length:	1.444" \| 36.7mm
Caliber:	7 mm B.R. Rem. load data
Case Length (l3):	1.510" \| 38.4mm
Cartridge Length (C.O.L.):	2.339" \| 59.4mm
Seated Depth:	0.615" \| 15.6mm
Shank Seated Depth:	0.387" \| 9.8mm
Case Capacity:	39.5 Grains of Water \| 2.56 cm³
Primer Size:	Small Rifle (SR)
Max. allowed Pressure:	58740 psi \| 4050 bar
LID:	LID_B5852_C1048
Last updated:	2025-01-01
Recommended Twist Rate:	1:9 - 1:8

Load data for 154 loads in caliber 7 mm B.R. Rem. with .284 | 175gr | Sierra HPBT MatchKing bullet and 77 powders such as Accurate 2520, Somchem S321, Vihtavuori N530, Winchester 748, Winchester StaBALL Match. 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.

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%	48994	83%	**92	98%
ADI AR 2207	<<locked>>	86%	51634	88%	**13	100%
ADI AR 2208	<<locked>>	97%	41814	71%	**67	95%
ADI AR 2219	<<locked>>	89%	52156	89%	**11	100%
Accurate 2015	<<locked>>	95%	52199	89%	**69	100%
Accurate 2200	<<locked>>	95%	50923	87%	**69	96%
Accurate 2230	<<locked>>	92%	52649	90%	**98	99%
Accurate 2460	<<locked>>	92%	51750	88%	**05	100%
Accurate 2495	<<locked>>	97%	47079	80%	**88	100%
Accurate 2520 👍	<<locked>>	97%	50502	86%	**31	100%
Accurate 4064	<<locked>>	97%	38769	66%	**87	99%
Alliant AR-Comp	<<locked>>	96%	48211	82%	**85	100%
Alliant Reloder- TS 15.5	<<locked>>	97%	39262	67%	**80	97%
Alliant Reloder-10x	<<locked>>	91%	51663	88%	**69	100%
Alliant Reloder-15	<<locked>>	97%	43250	74%	**36	96%
[Alliant Reloder-17]*	<<locked>>	97%	35520	60%	**44	94%
Alliant Reloder-7	<<locked>>	85%	51097	87%	**06	100%
Baschieri & Pellagri 106	<<locked>>	89%	52359	89%	**26	100%
Baschieri & Pellagri 107	<<locked>>	97%	48138	82%	**98	96%
Hodgdon BL-C2	<<locked>>	96%	49632	84%	**38	99%
Hodgdon Benchmark	<<locked>>	94%	51387	87%	**56	99%
Hodgdon CFE BLK	<<locked>>	85%	51488	88%	**23	99%
[Hodgdon CFE223]*	<<locked>>	96%	41829	71%	**29	94%
Hodgdon H322	<<locked>>	94%	51271	87%	**05	100%
Hodgdon H335	<<locked>>	90%	52779	90%	**31	100%
[Hodgdon H380]*	<<locked>>	96%	40219	68%	**77	93%
Hodgdon H4198	<<locked>>	87%	51866	88%	**13	100%
Hodgdon VARGET	<<locked>>	96%	40234	68%	**47	95%
IMR 3031	<<locked>>	96%	42076	72%	**36	100%
IMR 4064	<<locked>>	96%	39233	67%	**28	95%
IMR 4198	<<locked>>	91%	51735	88%	**23	100%
IMR 4895	<<locked>>	97%	43990	75%	**59	97%
IMR 8208 XBR	<<locked>>	97%	52170	89%	**08	99%
Lovex D073.4	<<locked>>	91%	52112	89%	**95	100%
Lovex D073.5	<<locked>>	93%	52736	90%	**11	100%
Lovex D073.6	<<locked>>	96%	44991	77%	**62	99%
Lovex S060	<<locked>>	96%	49719	85%	**33	98%
Lovex S062	<<locked>>	96%	41408	70%	**80	98%
Norma 200	<<locked>>	88%	51996	89%	**52	100%
Norma 201	<<locked>>	97%	47572	81%	**56	99%
Norma 202	<<locked>>	97%	47616	81%	**69	100%
Norma 203B	<<locked>>	97%	42206	72%	**26	96%
Ramshot Big Game	<<locked>>	96%	42293	72%	**29	96%
Ramshot TAC	<<locked>>	96%	52620	90%	**05	96%
Ramshot Wild Boar	<<locked>>	97%	51213	87%	**31	98%
Ramshot X-Terminator	<<locked>>	94%	52286	89%	**92	98%
ReloadSwiss RS 40	<<locked>>	93%	52083	89%	**01	100%
ReloadSwiss RS 52	<<locked>>	97%	40930	70%	**42	98%
[ReloadSwiss RS 60]*	<<locked>>	97%	34809	59%	**34	94%
Rottweil R 901	<<locked>>	96%	51039	87%	**75	100%
Rottweil R 902	<<locked>>	97%	45324	77%	**13	98%
Rottweil R 903	<<locked>>	97%	35563	61%	**28	95%
SNPE Vectan BA6 1/2	<<locked>>	85%	51822	88%	**00	100%
SNPE Vectan SP 10	<<locked>>	89%	52794	90%	**21	100%
SNPE Vectan SP 11	<<locked>>	97%	38783	66%	**83	95%
SNPE Vectan SP 7	<<locked>>	96%	49429	84%	**75	95%
SNPE Vectan SP 9	<<locked>>	97%	47427	81%	**75	97%
SNPE Vectan Tubal 3000	<<locked>>	96%	50604	86%	**23	100%
SNPE Vectan Tubal 5000	<<locked>>	96%	40828	70%	**11	100%
Shooters World Match Rifle	<<locked>>	96%	44991	77%	**62	99%
Shooters World Precision	<<locked>>	96%	41408	70%	**80	98%
Shooters World Tactical Rifle	<<locked>>	90%	52214	89%	**72	99%
Somchem S321 👍	<<locked>>	94%	52562	89%	**34	99%
Somchem S335	<<locked>>	97%	49182	84%	**23	100%
Somchem S341	<<locked>>	97%	49139	84%	**82	97%
Somchem S355	<<locked>>	97%	37130	63%	**34	96%
Vihtavuori N120	<<locked>>	88%	51967	88%	**73	100%
Vihtavuori N130	<<locked>>	94%	51924	88%	**23	100%
Vihtavuori N133	<<locked>>	97%	46514	79%	**80	100%
Vihtavuori N135	<<locked>>	97%	35969	61%	**01	100%
Vihtavuori N140	<<locked>>	97%	44657	76%	**10	100%
Vihtavuori N150	<<locked>>	96%	31082	53%	**06	95%
Vihtavuori N530 👍	<<locked>>	95%	52765	90%	**21	99%
Vihtavuori N540	<<locked>>	96%	43207	74%	**16	99%
[Winchester 6.5 StaBALL]*	<<locked>>	97%	33591	57%	**26	93%
Winchester 748 👍	<<locked>>	94%	51140	87%	**51	100%
Winchester StaBALL Match 👍	<<locked>>	92%	51953	88%	**47	99%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	81%	30385	52%	**86	92%
ADI AR 2207	<<locked>>	81%	44730	76%	**34	100%
[ADI AR 2208]*	<<locked>>	85%	29791	51%	**50	90%
ADI AR 2219	<<locked>>	81%	39189	67%	**41	100%
Accurate 2015	<<locked>>	81%	34069	58%	**19	100%
[Accurate 2200]*	<<locked>>	81%	32343	55%	**80	91%
Accurate 2230	<<locked>>	81%	35375	60%	**55	95%
Accurate 2460	<<locked>>	81%	35157	60%	**65	97%
Accurate 2495	<<locked>>	81%	27789	47%	**83	99%
Accurate 2520	<<locked>>	81%	29269	50%	**03	96%
Accurate 4064	<<locked>>	81%	23438	40%	**81	95%
Alliant AR-Comp	<<locked>>	81%	30066	51%	**19	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	82%	25063	43%	**88	90%
Alliant Reloder-10x	<<locked>>	81%	37507	64%	**82	100%
[Alliant Reloder-15]*	<<locked>>	83%	28485	48%	**64	90%
[Alliant Reloder-17]*	<<locked>>	92%	30110	51%	**29	90%
Alliant Reloder-7	<<locked>>	81%	46093	78%	**47	100%
Baschieri & Pellagri 106	<<locked>>	81%	40147	68%	**72	100%
[Baschieri & Pellagri 107]*	<<locked>>	83%	31401	53%	**09	90%
[Hodgdon BL-C2]*	<<locked>>	81%	29559	50%	**09	93%
Hodgdon Benchmark	<<locked>>	81%	34272	58%	**00	96%
Hodgdon CFE BLK	<<locked>>	81%	44962	77%	**41	98%
[Hodgdon CFE223]*	<<locked>>	88%	32126	55%	**49	90%
Hodgdon H322	<<locked>>	81%	33547	57%	**42	99%
Hodgdon H335	<<locked>>	81%	38754	66%	**41	99%
[Hodgdon H380]*	<<locked>>	90%	32445	55%	**39	90%
Hodgdon H4198	<<locked>>	81%	43700	74%	**08	100%
[Hodgdon VARGET]*	<<locked>>	86%	29791	51%	**50	90%
IMR 3031	<<locked>>	81%	26382	45%	**44	97%
[IMR 4064]*	<<locked>>	85%	28805	49%	**27	90%
IMR 4198	<<locked>>	81%	38957	66%	**62	100%
[IMR 4895]*	<<locked>>	81%	27209	46%	**47	91%
IMR 8208 XBR	<<locked>>	81%	32271	55%	**03	95%
Lovex D073.4	<<locked>>	81%	36666	62%	**78	97%
Lovex D073.5	<<locked>>	81%	34548	59%	**55	97%
Lovex D073.6	<<locked>>	81%	27180	46%	**57	95%
[Lovex S060]*	<<locked>>	81%	32126	55%	**50	93%
[Lovex S062]*	<<locked>>	81%	26397	45%	**98	92%
Norma 200	<<locked>>	81%	42308	72%	**31	100%
[Norma 201]*	<<locked>>	81%	29312	50%	**47	94%
Norma 202	<<locked>>	81%	29080	50%	**67	97%
[Norma 203B]*	<<locked>>	82%	26890	46%	**34	90%
[Ramshot Big Game]*	<<locked>>	85%	29617	50%	**90	91%
[Ramshot TAC]*	<<locked>>	84%	35346	60%	**46	90%
[Ramshot Wild Boar]*	<<locked>>	81%	30821	52%	**03	92%
[Ramshot X-Terminator]*	<<locked>>	81%	35215	60%	**36	94%
ReloadSwiss RS 40	<<locked>>	81%	35737	61%	**65	97%
[ReloadSwiss RS 52]*	<<locked>>	81%	24526	42%	**01	91%
[ReloadSwiss RS 60]*	<<locked>>	92%	29660	50%	**16	91%
Rottweil R 901	<<locked>>	81%	32793	56%	**00	97%
[Rottweil R 902]*	<<locked>>	81%	27847	47%	**08	93%
[Rottweil R 903]*	<<locked>>	85%	24976	43%	**04	90%
SNPE Vectan BA6 1/2	<<locked>>	81%	46528	79%	**44	100%
SNPE Vectan SP 10	<<locked>>	81%	40277	69%	**54	99%
[SNPE Vectan SP 11]*	<<locked>>	87%	28950	49%	**83	90%
[SNPE Vectan SP 7]*	<<locked>>	85%	33750	57%	**36	91%
[SNPE Vectan SP 9]*	<<locked>>	81%	28776	49%	**47	91%
SNPE Vectan Tubal 3000	<<locked>>	81%	31792	54%	**44	97%
SNPE Vectan Tubal 5000	<<locked>>	81%	25744	44%	**39	96%
Shooters World Match Rifle	<<locked>>	81%	27180	46%	**57	95%
[Shooters World Precision]*	<<locked>>	81%	26397	45%	**98	92%
Shooters World Tactical Rifle	<<locked>>	81%	38058	65%	**78	96%
Somchem S321	<<locked>>	81%	33736	57%	**59	96%
Somchem S335	<<locked>>	81%	30690	52%	**44	98%
[Somchem S341]*	<<locked>>	81%	29718	51%	**60	91%
[Somchem S355]*	<<locked>>	84%	25396	43%	**98	90%
Vihtavuori N120	<<locked>>	81%	42047	72%	**62	100%
Vihtavuori N130	<<locked>>	81%	35346	60%	**06	100%
Vihtavuori N133	<<locked>>	81%	29399	50%	**11	99%
Vihtavuori N135	<<locked>>	81%	22466	38%	**16	96%
Vihtavuori N140	<<locked>>	81%	27383	47%	**18	96%
[Vihtavuori N150]*	<<locked>>	85%	22931	39%	**16	90%
Vihtavuori N530	<<locked>>	81%	33112	56%	**29	95%
Vihtavuori N540	<<locked>>	81%	26789	46%	**21	95%
[Winchester 6.5 StaBALL]*	<<locked>>	92%	29631	50%	**41	90%
Winchester 748	<<locked>>	81%	32764	56%	**65	96%
Winchester StaBALL Match	<<locked>>	81%	34432	59%	**85	95%

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.