Load data for 7 x 50 R + .284 | 150gr | Sierra HPBT MatchKing

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.284 \| 150gr \| Sierra HPBT MatchKing
Manufacturer SKU:	1915
Bullet Weight:	150gr \| 9.7g
Bullet Diameter:	0.284" \| 7.21mm
Bullet Length:	1.250" \| 31.7mm
Caliber:	7 x 50 R load data
Case Length (l3):	1.940" \| 49.3mm
Cartridge Length (C.O.L.):	2.637" \| 67.0mm
Seated Depth:	0.553" \| 14.1mm
Shank Seated Depth:	0.413" \| 10.5mm
Case Capacity:	34.5 Grains of Water \| 2.24 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	52939 psi \| 3650 bar
LID:	LID_B5842_C1085
Last updated:	2025-01-01
Recommended Twist Rate:	1:11 - 1:9

Load data for 96 loads in caliber 7 x 50 R with .284 | 150gr | Sierra HPBT MatchKing bullet and 48 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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Min z (%)
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Max FR*
Barrel Length (Inch)
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 2207 👍	<<locked>>	92%	47500	90%	**88	100%
ADI AR 2219	<<locked>>	94%	46398	88%	**31	98%
Accurate 2015	<<locked>>	96%	39842	75%	**13	99%
[Accurate 2230]*	<<locked>>	97%	44425	84%	**62	93%
Accurate 2460	<<locked>>	97%	43192	82%	**72	95%
Accurate 2495	<<locked>>	96%	31328	59%	**64	97%
[Accurate 2520]*	<<locked>>	97%	34998	66%	**87	94%
[Accurate 4064]*	<<locked>>	96%	25976	49%	**36	92%
Alliant AR-Comp	<<locked>>	97%	36390	69%	**19	100%
Alliant Reloder-10x 👍	<<locked>>	96%	44425	84%	**88	100%
Alliant Reloder-7	<<locked>>	90%	47065	89%	**62	100%
Baschieri & Pellagri 106 👍	<<locked>>	94%	46963	89%	**49	99%
[Hodgdon Benchmark]*	<<locked>>	96%	42148	80%	**03	94%
[Hodgdon CFE BLK]*	<<locked>>	90%	46209	87%	**16	94%
Hodgdon H322	<<locked>>	97%	41118	78%	**52	97%
Hodgdon H335	<<locked>>	95%	46688	88%	**38	98%
Hodgdon H4198	<<locked>>	92%	47079	89%	**36	98%
IMR 3031	<<locked>>	96%	30806	58%	**11	95%
IMR 4198 👍	<<locked>>	95%	45992	87%	**59	100%
IMR 4227	<<locked>>	85%	47195	89%	**10	100%
[IMR 8208 XBR]*	<<locked>>	96%	38464	73%	**87	92%
Lovex D073.4	<<locked>>	96%	45484	86%	**88	96%
Lovex D073.5	<<locked>>	96%	41930	79%	**56	95%
[Lovex D073.6]*	<<locked>>	96%	31676	60%	**24	92%
Lovex S053	<<locked>>	85%	46093	87%	**77	100%
Norma 200 👍	<<locked>>	94%	47050	89%	**08	100%
Norma 202	<<locked>>	97%	34809	66%	**57	95%
[Ramshot X-Terminator]*	<<locked>>	97%	43830	83%	**39	92%
ReloadSwiss RS 36	<<locked>>	85%	46354	88%	**39	100%
ReloadSwiss RS 40	<<locked>>	96%	43830	83%	**75	96%
Rottweil R 901	<<locked>>	96%	38087	72%	**80	95%
SNPE Vectan BA6 1/2	<<locked>>	89%	46717	88%	**55	100%
SNPE Vectan SP 10	<<locked>>	94%	46137	87%	**31	97%
SNPE Vectan Tubal 3000	<<locked>>	96%	37579	71%	**18	95%
[SNPE Vectan Tubal 5000]*	<<locked>>	96%	30226	57%	**93	94%
[Shooters World Match Rifle]*	<<locked>>	96%	31676	60%	**24	92%
[Shooters World Tactical Rifle]*	<<locked>>	95%	46499	88%	**65	94%
[Somchem S321]*	<<locked>>	97%	41452	78%	**62	94%
Somchem S335	<<locked>>	96%	36622	69%	**31	96%
Vihtavuori N120	<<locked>>	94%	46166	87%	**29	100%
Vihtavuori N130	<<locked>>	96%	42061	79%	**03	99%
Vihtavuori N133	<<locked>>	96%	34577	65%	**91	97%
[Vihtavuori N135]*	<<locked>>	96%	25759	49%	**67	93%
[Vihtavuori N140]*	<<locked>>	97%	33141	63%	**98	94%
[Vihtavuori N530]*	<<locked>>	96%	40843	77%	**36	93%
[Vihtavuori N540]*	<<locked>>	96%	31618	60%	**95	93%
[Winchester 748]*	<<locked>>	97%	40785	77%	**65	94%
[Winchester StaBALL Match]*	<<locked>>	97%	44657	84%	**08	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2207	<<locked>>	81%	34055	64%	**95	100%
[ADI AR 2219]*	<<locked>>	81%	29863	56%	**39	94%
Accurate 2015	<<locked>>	81%	25396	48%	**34	95%
[Accurate 2230]*	<<locked>>	91%	35940	68%	**34	90%
[Accurate 2460]*	<<locked>>	86%	29907	56%	**42	90%
[Accurate 2495]*	<<locked>>	81%	18768	35%	**49	90%
[Accurate 2520]*	<<locked>>	90%	27702	52%	**36	90%
[Accurate 4064]*	<<locked>>	94%	24091	45%	**90	91%
Alliant AR-Comp	<<locked>>	81%	22597	43%	**01	95%
Alliant Reloder-10x	<<locked>>	81%	28050	53%	**03	97%
Alliant Reloder-7	<<locked>>	81%	35578	67%	**91	99%
Baschieri & Pellagri 106	<<locked>>	81%	31067	59%	**93	95%
[Hodgdon Benchmark]*	<<locked>>	86%	31096	59%	**03	90%
[Hodgdon CFE BLK]*	<<locked>>	81%	35172	66%	**42	91%
[Hodgdon H322]*	<<locked>>	81%	25614	48%	**34	91%
[Hodgdon H335]*	<<locked>>	81%	29196	55%	**29	92%
Hodgdon H4198	<<locked>>	81%	34171	65%	**26	95%
[IMR 3031]*	<<locked>>	87%	23627	45%	**24	91%
IMR 4198	<<locked>>	81%	30879	58%	**06	98%
IMR 4227	<<locked>>	81%	41524	78%	**34	100%
[IMR 8208 XBR]*	<<locked>>	92%	34200	65%	**05	91%
[Lovex D073.4]*	<<locked>>	84%	30153	57%	**32	90%
[Lovex D073.5]*	<<locked>>	87%	30501	58%	**55	91%
[Lovex D073.6]*	<<locked>>	92%	28224	53%	**49	90%
Lovex S053	<<locked>>	81%	40814	77%	**05	100%
Norma 200	<<locked>>	81%	31415	59%	**62	99%
[Norma 202]*	<<locked>>	88%	26353	50%	**73	90%
[Ramshot X-Terminator]*	<<locked>>	93%	39044	74%	**64	90%
ReloadSwiss RS 36	<<locked>>	81%	41278	78%	**67	100%
[ReloadSwiss RS 40]*	<<locked>>	84%	29762	56%	**23	91%
[Rottweil R 901]*	<<locked>>	84%	26585	50%	**50	91%
SNPE Vectan BA6 1/2	<<locked>>	81%	37811	71%	**47	100%
[SNPE Vectan SP 10]*	<<locked>>	81%	30066	57%	**49	92%
[SNPE Vectan Tubal 3000]*	<<locked>>	84%	25817	49%	**88	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	89%	24990	47%	**72	91%
[Shooters World Match Rifle]*	<<locked>>	92%	28224	53%	**49	90%
[Shooters World Tactical Rifle]*	<<locked>>	87%	35128	66%	**85	90%
[Somchem S321]*	<<locked>>	89%	32721	62%	**11	91%
[Somchem S335]*	<<locked>>	82%	23859	45%	**65	90%
Vihtavuori N120	<<locked>>	81%	31821	60%	**23	100%
Vihtavuori N130	<<locked>>	81%	26861	51%	**31	96%
[Vihtavuori N133]*	<<locked>>	81%	22524	43%	**16	92%
[Vihtavuori N135]*	<<locked>>	91%	22176	42%	**68	91%
[Vihtavuori N140]*	<<locked>>	89%	26368	50%	**47	91%
[Vihtavuori N530]*	<<locked>>	90%	33373	63%	**05	91%
[Vihtavuori N540]*	<<locked>>	91%	27267	52%	**93	90%
[Winchester 748]*	<<locked>>	89%	32416	61%	**08	90%
[Winchester StaBALL Match]*	<<locked>>	92%	38189	72%	**00	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.