Load data for 6 x 52 R BB2 + .243 | 100gr | Sierra SP SemiSp

Recommended Powder(s): Alliant Reloder- TS 15.5, ReloadSwiss RS 52, ReloadSwiss RS 60, Rottweil R 903, Somchem S355

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.243 \| 100gr \| Sierra SP SemiSp
Manufacturer SKU:	1550
Bullet Weight:	100gr \| 6.5g
Bullet Diameter:	0.243" \| 6.17mm
Bullet Length:	0.980" \| 24.9mm
Caliber:	6 x 52 R BB2 load data
Case Length (l3):	2.040" \| 51.8mm
Cartridge Length (C.O.L.):	2.679" \| 68.1mm
Seated Depth:	0.341" \| 8.7mm
Shank Seated Depth:	0.341" \| 8.7mm
Case Capacity:	40.0 Grains of Water \| 2.60 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	47863 psi \| 3300 bar
LID:	LID_B5780_C964
Last updated:	2025-01-01

Load data for 116 loads in caliber 6 x 52 R BB2 with .243 | 100gr | Sierra SP SemiSp bullet and 58 powders such as Alliant Reloder- TS 15.5, ReloadSwiss RS 52, ReloadSwiss RS 60, Rottweil R 903, Somchem S355. 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 (%)
Min FR (%)
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 2208	<<locked>>	88%	42366	89%	**62	97%
[Accurate 2700]*	<<locked>>	89%	43004	90%	**10	92%
Accurate 4064	<<locked>>	87%	42163	88%	**89	100%
Accurate 4350	<<locked>>	97%	42119	88%	**48	96%
Alliant Reloder- TS 15.5 👍	<<locked>>	88%	42598	89%	**05	99%
Alliant Reloder-15	<<locked>>	86%	42032	88%	**98	97%
Alliant Reloder-16	<<locked>>	96%	42395	89%	**54	96%
Alliant Reloder-17	<<locked>>	93%	42685	89%	**94	98%
[Alliant Reloder-23]*	<<locked>>	97%	30458	64%	**92	93%
Hodgdon CFE223	<<locked>>	87%	42395	89%	**38	96%
Hodgdon H380	<<locked>>	87%	41974	88%	**79	96%
[Hodgdon H414]*	<<locked>>	91%	42351	88%	**31	93%
[Hodgdon H4350]*	<<locked>>	97%	41698	87%	**56	92%
Hodgdon Hybrid 100V	<<locked>>	97%	38798	81%	**49	97%
Hodgdon LVR	<<locked>>	94%	42859	90%	**41	96%
[Hodgdon Superperformance]*	<<locked>>	94%	43047	90%	**48	92%
Hodgdon VARGET	<<locked>>	88%	42366	89%	**62	97%
IMR 3031	<<locked>>	86%	42844	90%	**18	100%
IMR 4064	<<locked>>	88%	41974	88%	**52	97%
[IMR 4166 Enduron]*	<<locked>>	88%	41814	87%	**07	93%
[IMR 4350]*	<<locked>>	96%	42554	89%	**72	92%
[IMR 4451 Enduron]*	<<locked>>	90%	42859	90%	**59	93%
[IMR 4831]*	<<locked>>	97%	36216	76%	**07	94%
IMR 4895	<<locked>>	86%	42917	90%	**25	98%
Lovex S062	<<locked>>	86%	41901	88%	**62	99%
Lovex S065	<<locked>>	93%	42714	89%	**69	95%
[Lovex S070]*	<<locked>>	95%	42656	89%	**82	93%
Norma 203B	<<locked>>	86%	42424	89%	**08	98%
Norma URP	<<locked>>	97%	42728	89%	**51	96%
Ramshot Big Game	<<locked>>	86%	41930	88%	**18	97%
[Ramshot Hunter]*	<<locked>>	96%	41466	87%	**21	94%
ReloadSwiss RS 14	<<locked>>	95%	32648	68%	**73	100%
[ReloadSwiss RS 50]*	<<locked>>	87%	42511	89%	**66	94%
ReloadSwiss RS 52 👍	<<locked>>	87%	42279	88%	**41	99%
ReloadSwiss RS 60 👍	<<locked>>	94%	42815	89%	**03	99%
ReloadSwiss RS 62	<<locked>>	96%	41539	87%	**57	96%
ReloadSwiss RS 70	<<locked>>	96%	42366	89%	**61	95%
Rottweil R 902	<<locked>>	85%	42670	89%	**52	99%
Rottweil R 903 👍	<<locked>>	90%	41974	88%	**95	98%
[Rottweil R 907]*	<<locked>>	91%	42322	88%	**43	92%
SNPE Vectan SP 11	<<locked>>	90%	43047	90%	**41	98%
SNPE Vectan SP 9	<<locked>>	84%	42583	89%	**85	98%
SNPE Vectan Tubal 5000	<<locked>>	88%	42293	88%	**00	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	93%	42366	89%	**16	93%
Shooters World Long Rifle	<<locked>>	93%	42714	89%	**69	95%
Shooters World Precision	<<locked>>	86%	41901	88%	**62	99%
Somchem S355 👍	<<locked>>	90%	43018	90%	**05	98%
Somchem S365	<<locked>>	97%	38000	79%	**02	98%
Vihtavuori N133	<<locked>>	84%	42279	88%	**87	100%
Vihtavuori N135	<<locked>>	91%	42612	89%	**56	100%
Vihtavuori N140	<<locked>>	85%	41974	88%	**39	100%
Vihtavuori N150	<<locked>>	96%	42902	90%	**75	99%
Vihtavuori N160	<<locked>>	94%	42757	89%	**08	96%
Vihtavuori N540	<<locked>>	86%	42482	89%	**72	100%
Vihtavuori N550	<<locked>>	94%	42844	90%	**51	96%
[Vihtavuori N555]*	<<locked>>	96%	31212	65%	**41	93%
Winchester 6.5 StaBALL	<<locked>>	94%	42119	88%	**72	98%
[Winchester 760]*	<<locked>>	91%	42351	88%	**31	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2208]*	<<locked>>	81%	34374	72%	**92	94%
[Accurate 2700]*	<<locked>>	86%	38261	80%	**18	90%
Accurate 4064	<<locked>>	81%	33997	71%	**28	99%
[Accurate 4350]*	<<locked>>	85%	27673	58%	**13	90%
Alliant Reloder- TS 15.5	<<locked>>	81%	33402	70%	**11	96%
Alliant Reloder-15	<<locked>>	81%	36172	76%	**74	95%
[Alliant Reloder-16]*	<<locked>>	85%	29950	63%	**49	90%
[Alliant Reloder-17]*	<<locked>>	81%	29182	61%	**56	92%
[Alliant Reloder-23]*	<<locked>>	93%	27195	57%	**93	91%
[Hodgdon CFE223]*	<<locked>>	81%	34548	72%	**64	94%
[Hodgdon H380]*	<<locked>>	81%	34026	71%	**11	93%
[Hodgdon H414]*	<<locked>>	87%	36492	76%	**07	90%
[Hodgdon H4350]*	<<locked>>	94%	38203	80%	**80	90%
[Hodgdon Hybrid 100V]*	<<locked>>	83%	25570	53%	**05	90%
[Hodgdon LVR]*	<<locked>>	84%	30835	64%	**59	90%
[Hodgdon Superperformance]*	<<locked>>	92%	39407	82%	**72	90%
[Hodgdon VARGET]*	<<locked>>	81%	34374	72%	**92	94%
IMR 3031	<<locked>>	81%	36492	76%	**00	100%
[IMR 4064]*	<<locked>>	81%	33924	71%	**75	94%
[IMR 4166 Enduron]*	<<locked>>	83%	36100	75%	**85	90%
[IMR 4350]*	<<locked>>	92%	37869	79%	**74	90%
[IMR 4451 Enduron]*	<<locked>>	85%	35853	75%	**08	90%
[IMR 4831]*	<<locked>>	89%	28427	59%	**13	91%
IMR 4895	<<locked>>	81%	36941	77%	**00	96%
Lovex S062	<<locked>>	81%	36085	75%	**44	97%
[Lovex S065]*	<<locked>>	84%	31923	67%	**33	90%
[Lovex S070]*	<<locked>>	88%	34838	73%	**18	90%
Norma 203B	<<locked>>	81%	35433	74%	**57	96%
[Norma URP]*	<<locked>>	85%	29022	61%	**29	90%
Ramshot Big Game	<<locked>>	81%	35259	74%	**74	95%
[Ramshot Hunter]*	<<locked>>	90%	33910	71%	**48	90%
ReloadSwiss RS 14	<<locked>>	92%	31459	66%	**47	100%
[ReloadSwiss RS 50]*	<<locked>>	81%	34606	72%	**95	91%
ReloadSwiss RS 52	<<locked>>	81%	34011	71%	**74	97%
[ReloadSwiss RS 60]*	<<locked>>	81%	28485	60%	**39	93%
[ReloadSwiss RS 62]*	<<locked>>	87%	30110	63%	**82	91%
[ReloadSwiss RS 70]*	<<locked>>	89%	33547	70%	**48	90%
Rottweil R 902	<<locked>>	81%	37724	79%	**54	98%
Rottweil R 903	<<locked>>	81%	30705	64%	**52	95%
[Rottweil R 907]*	<<locked>>	88%	37594	79%	**44	90%
[SNPE Vectan SP 11]*	<<locked>>	81%	32097	67%	**02	94%
SNPE Vectan SP 9	<<locked>>	81%	39001	81%	**10	97%
SNPE Vectan Tubal 5000	<<locked>>	81%	34171	71%	**39	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	88%	34998	73%	**72	90%
[Shooters World Long Rifle]*	<<locked>>	84%	31923	67%	**33	90%
Shooters World Precision	<<locked>>	81%	36085	75%	**44	97%
Somchem S355	<<locked>>	81%	31908	67%	**62	95%
[Somchem S365]*	<<locked>>	82%	23685	49%	**92	91%
Vihtavuori N133	<<locked>>	81%	38551	81%	**21	100%
Vihtavuori N135	<<locked>>	81%	30995	65%	**29	100%
Vihtavuori N140	<<locked>>	81%	37202	78%	**48	100%
[Vihtavuori N150]*	<<locked>>	81%	27137	57%	**24	94%
[Vihtavuori N160]*	<<locked>>	82%	29066	61%	**90	90%
Vihtavuori N540	<<locked>>	81%	36666	77%	**61	99%
[Vihtavuori N550]*	<<locked>>	82%	29022	61%	**29	90%
[Vihtavuori N555]*	<<locked>>	92%	27006	56%	**23	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	27514	57%	**21	92%
[Winchester 760]*	<<locked>>	87%	36492	76%	**07	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.