Load data for .25 WSSM + .257 | 98gr | Hasler ARIETE

Recommended Powder(s): ADI AR 2206H, Baschieri & Pellagri 107, IMR 4895, Norma 203B, ReloadSwiss RS 52

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.257 \| 98gr \| Hasler ARIETE
Manufacturer SKU:	A257-98
Bullet Weight:	98gr \| 6.4g
Bullet Diameter:	0.257" \| 6.53mm
Bullet Length:	1.179" \| 29.9mm
Caliber:	.25 WSSM load data
Case Length (l3):	1.670" \| 42.4mm
Cartridge Length (C.O.L.):	2.325" \| 59.0mm
Seated Depth:	0.524" \| 13.3mm
Shank Seated Depth:	0.392" \| 9.9mm
Case Capacity:	54.3 Grains of Water \| 3.53 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	63817 psi \| 4400 bar
LID:	LID_B7052_C206
Last updated:	2025-01-01
Recommended Twist Rate:	1:9 - 1:8

Load data for 196 loads in caliber .25 WSSM with .257 | 98gr | Hasler ARIETE bullet and 98 powders such as ADI AR 2206H, Baschieri & Pellagri 107, IMR 4895, Norma 203B, ReloadSwiss RS 52. 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>>	92%	57305	90%	**53	100%
ADI AR 2208	<<locked>>	96%	55448	87%	**97	99%
ADI AR 2219	<<locked>>	83%	56913	89%	**00	100%
Accurate 2015	<<locked>>	88%	56695	89%	**35	100%
Accurate 2200	<<locked>>	90%	57305	90%	**07	99%
Accurate 2230	<<locked>>	86%	57276	90%	**91	100%
Accurate 2460	<<locked>>	86%	57159	90%	**00	100%
Accurate 2495	<<locked>>	92%	56594	89%	**07	100%
Accurate 2520	<<locked>>	90%	56971	89%	**27	100%
Accurate 2700	<<locked>>	96%	54433	85%	**05	95%
Accurate 4064	<<locked>>	97%	55448	87%	**14	100%
Accurate 4350	<<locked>>	96%	40988	64%	**17	96%
Alliant AR-Comp	<<locked>>	91%	57145	90%	**94	100%
Alliant Reloder- TS 15.5	<<locked>>	97%	55347	87%	**27	100%
Alliant Reloder-10x	<<locked>>	85%	56260	88%	**38	100%
Alliant Reloder-15	<<locked>>	95%	56304	88%	**56	99%
Alliant Reloder-16	<<locked>>	97%	42264	66%	**46	96%
Alliant Reloder-17	<<locked>>	97%	48631	76%	**14	99%
Baschieri & Pellagri 106	<<locked>>	84%	56376	88%	**82	100%
Baschieri & Pellagri 107 👍	<<locked>>	92%	56362	88%	**50	99%
Hodgdon BL-C2	<<locked>>	90%	56391	88%	**50	100%
Hodgdon Benchmark	<<locked>>	89%	56565	89%	**58	100%
Hodgdon CFE223	<<locked>>	95%	56579	89%	**82	99%
Hodgdon H322	<<locked>>	88%	56913	89%	**00	100%
Hodgdon H335	<<locked>>	83%	57000	89%	**07	100%
Hodgdon H380	<<locked>>	97%	57130	90%	**50	98%
Hodgdon H414	<<locked>>	96%	50125	79%	**77	95%
Hodgdon Hybrid 100V	<<locked>>	96%	37855	59%	**15	97%
Hodgdon LVR	<<locked>>	96%	45905	72%	**02	96%
[Hodgdon Superperformance]*	<<locked>>	97%	46702	73%	**15	93%
Hodgdon VARGET	<<locked>>	96%	54665	86%	**87	99%
Hodgdon TrailBoss	<<locked>>	96%	32547	51%	**57	100%
IMR 3031	<<locked>>	95%	57058	89%	**46	100%
IMR 4064	<<locked>>	97%	54375	85%	**71	99%
IMR 4166 Enduron	<<locked>>	97%	53983	85%	**28	96%
IMR 4198	<<locked>>	85%	56536	89%	**02	100%
[IMR 4350]*	<<locked>>	97%	43149	68%	**74	92%
IMR 4451 Enduron	<<locked>>	97%	52025	82%	**25	95%
[IMR 4831]*	<<locked>>	97%	35375	55%	**62	94%
IMR 4895 👍	<<locked>>	94%	56492	89%	**69	100%
IMR 8208 XBR	<<locked>>	90%	56347	88%	**04	100%
Lovex D073.4	<<locked>>	85%	56942	89%	**84	100%
Lovex D073.5	<<locked>>	86%	56550	89%	**91	100%
Lovex D073.6	<<locked>>	92%	56971	89%	**27	100%
Lovex S060	<<locked>>	92%	56869	89%	**64	100%
Lovex S062	<<locked>>	96%	57014	89%	**17	100%
Lovex S065	<<locked>>	97%	47036	74%	**40	96%
[Lovex S070]*	<<locked>>	97%	44498	70%	**13	94%
Norma 201	<<locked>>	93%	57217	90%	**10	100%
Norma 202	<<locked>>	93%	57029	89%	**10	100%
Norma 203B 👍	<<locked>>	96%	56666	89%	**53	100%
Norma URP	<<locked>>	97%	42119	66%	**36	96%
Ramshot Big Game	<<locked>>	95%	56072	88%	**59	99%
[Ramshot Hunter]*	<<locked>>	97%	41669	65%	**20	93%
Ramshot TAC	<<locked>>	90%	57130	90%	**10	98%
Ramshot Wild Boar	<<locked>>	90%	56637	89%	**43	100%
Ramshot X-Terminator	<<locked>>	88%	57159	90%	**94	99%
ReloadSwiss RS 14	<<locked>>	95%	32343	51%	**93	100%
ReloadSwiss RS 40	<<locked>>	87%	57145	90%	**04	100%
ReloadSwiss RS 50	<<locked>>	96%	56681	89%	**14	97%
ReloadSwiss RS 52 👍	<<locked>>	96%	57246	90%	**89	100%
ReloadSwiss RS 60	<<locked>>	97%	47137	74%	**97	100%
ReloadSwiss RS 62	<<locked>>	96%	41292	65%	**43	95%
ReloadSwiss RS 70	<<locked>>	97%	42960	67%	**72	95%
Rottweil R 901	<<locked>>	91%	56884	89%	**81	100%
Rottweil R 902	<<locked>>	95%	57000	89%	**97	100%
Rottweil R 903	<<locked>>	97%	51314	80%	**61	99%
[Rottweil R 907]*	<<locked>>	97%	49501	78%	**76	94%
SNPE Vectan SP 11	<<locked>>	97%	53867	84%	**30	99%
SNPE Vectan SP 7	<<locked>>	91%	56492	89%	**10	98%
SNPE Vectan SP 9	<<locked>>	93%	56710	89%	**27	100%
SNPE Vectan Tubal 3000	<<locked>>	91%	56797	89%	**18	100%
SNPE Vectan Tubal 5000	<<locked>>	97%	55361	87%	**95	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	97%	46934	74%	**87	94%
Shooters World Long Rifle	<<locked>>	97%	47036	74%	**40	96%
Shooters World Match Rifle	<<locked>>	92%	56971	89%	**27	100%
Shooters World Precision	<<locked>>	96%	57014	89%	**17	100%
Shooters World Tactical Rifle	<<locked>>	84%	56260	88%	**61	100%
Somchem S321	<<locked>>	88%	56913	89%	**20	100%
Somchem S335	<<locked>>	92%	57188	90%	**38	100%
Somchem S341	<<locked>>	91%	56231	88%	**97	99%
Somchem S355	<<locked>>	97%	52025	82%	**64	99%
Somchem S365	<<locked>>	97%	37028	58%	**64	98%
Vihtavuori N120	<<locked>>	83%	56985	89%	**27	100%
Vihtavuori N130	<<locked>>	88%	56826	89%	**95	100%
Vihtavuori N133	<<locked>>	94%	56985	89%	**12	100%
Vihtavuori N135	<<locked>>	97%	49458	77%	**63	100%
Vihtavuori N140	<<locked>>	95%	57101	89%	**81	100%
Vihtavuori N150	<<locked>>	97%	43627	68%	**77	99%
Vihtavuori N160	<<locked>>	97%	47050	74%	**86	97%
Vihtavuori N530	<<locked>>	88%	56304	88%	**14	100%
Vihtavuori N540	<<locked>>	95%	57319	90%	**10	100%
Vihtavuori N550	<<locked>>	97%	47065	74%	**25	97%
[Vihtavuori N555]*	<<locked>>	97%	30763	48%	**00	92%
Winchester 6.5 StaBALL	<<locked>>	97%	45716	72%	**30	99%
Winchester 748	<<locked>>	88%	56463	88%	**53	100%
Winchester 760	<<locked>>	96%	50125	79%	**77	95%
Winchester StaBALL Match	<<locked>>	86%	57377	90%	**53	100%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	39407	62%	**08	97%
[ADI AR 2208]*	<<locked>>	81%	33779	53%	**54	94%
ADI AR 2219	<<locked>>	81%	53011	83%	**48	100%
Accurate 2015	<<locked>>	81%	44628	70%	**51	100%
Accurate 2200	<<locked>>	81%	42061	66%	**31	96%
Accurate 2230	<<locked>>	81%	47282	74%	**33	99%
Accurate 2460	<<locked>>	81%	47210	74%	**40	100%
Accurate 2495	<<locked>>	81%	38595	60%	**05	100%
Accurate 2520	<<locked>>	81%	40524	63%	**48	99%
[Accurate 2700]*	<<locked>>	87%	39233	61%	**17	90%
Accurate 4064	<<locked>>	81%	32227	51%	**64	98%
[Accurate 4350]*	<<locked>>	87%	29037	46%	**15	90%
Alliant AR-Comp	<<locked>>	81%	41075	64%	**44	100%
Alliant Reloder- TS 15.5	<<locked>>	81%	32648	51%	**67	95%
Alliant Reloder-10x	<<locked>>	81%	48718	76%	**27	100%
[Alliant Reloder-15]*	<<locked>>	81%	35070	55%	**26	94%
[Alliant Reloder-16]*	<<locked>>	87%	30472	48%	**35	90%
[Alliant Reloder-17]*	<<locked>>	81%	28239	44%	**92	91%
Baschieri & Pellagri 106	<<locked>>	81%	51634	81%	**07	100%
Baschieri & Pellagri 107	<<locked>>	81%	38870	61%	**15	95%
Hodgdon BL-C2	<<locked>>	81%	40437	63%	**64	98%
Hodgdon Benchmark	<<locked>>	81%	43990	69%	**38	99%
[Hodgdon CFE223]*	<<locked>>	81%	33765	53%	**17	93%
Hodgdon H322	<<locked>>	81%	44672	70%	**07	100%
Hodgdon H335	<<locked>>	81%	51938	81%	**35	100%
[Hodgdon H380]*	<<locked>>	81%	32750	51%	**48	92%
[Hodgdon H414]*	<<locked>>	88%	36796	58%	**92	90%
[Hodgdon Hybrid 100V]*	<<locked>>	85%	25730	40%	**64	90%
[Hodgdon LVR]*	<<locked>>	85%	31401	49%	**44	90%
[Hodgdon Superperformance]*	<<locked>>	93%	40524	63%	**84	90%
[Hodgdon VARGET]*	<<locked>>	81%	33402	52%	**41	93%
Hodgdon TrailBoss	<<locked>>	81%	25976	41%	**06	100%
IMR 3031	<<locked>>	81%	35331	55%	**56	100%
[IMR 4064]*	<<locked>>	81%	32895	52%	**25	94%
[IMR 4166 Enduron]*	<<locked>>	84%	36593	57%	**74	90%
IMR 4198	<<locked>>	81%	50154	79%	**07	100%
[IMR 4350]*	<<locked>>	93%	38479	60%	**69	90%
[IMR 4451 Enduron]*	<<locked>>	86%	36825	58%	**10	90%
[IMR 4831]*	<<locked>>	91%	29008	45%	**85	90%
IMR 4895	<<locked>>	81%	35955	56%	**59	95%
IMR 8208 XBR	<<locked>>	81%	41698	65%	**35	98%
Lovex D073.4	<<locked>>	81%	49371	77%	**59	100%
Lovex D073.5	<<locked>>	81%	46789	73%	**30	100%
Lovex D073.6	<<locked>>	81%	37623	59%	**82	99%
Lovex S060	<<locked>>	81%	40379	63%	**66	97%
Lovex S062	<<locked>>	81%	34519	54%	**87	97%
[Lovex S065]*	<<locked>>	85%	32300	51%	**08	90%
[Lovex S070]*	<<locked>>	90%	35955	56%	**17	90%
Norma 201	<<locked>>	81%	38159	60%	**66	98%
Norma 202	<<locked>>	81%	39015	61%	**89	99%
Norma 203B	<<locked>>	81%	34374	54%	**10	95%
[Norma URP]*	<<locked>>	87%	30081	47%	**21	90%
[Ramshot Big Game]*	<<locked>>	81%	34156	54%	**23	94%
[Ramshot Hunter]*	<<locked>>	91%	34708	54%	**43	90%
[Ramshot TAC]*	<<locked>>	81%	41684	65%	**28	94%
Ramshot Wild Boar	<<locked>>	81%	40973	64%	**54	97%
Ramshot X-Terminator	<<locked>>	81%	45614	71%	**94	98%
ReloadSwiss RS 14	<<locked>>	81%	25889	41%	**42	100%
ReloadSwiss RS 40	<<locked>>	81%	47413	74%	**43	100%
[ReloadSwiss RS 50]*	<<locked>>	82%	34780	55%	**71	90%
ReloadSwiss RS 52	<<locked>>	81%	33069	52%	**26	97%
[ReloadSwiss RS 60]*	<<locked>>	81%	27470	43%	**69	91%
[ReloadSwiss RS 62]*	<<locked>>	88%	30908	48%	**74	91%
[ReloadSwiss RS 70]*	<<locked>>	90%	34113	53%	**33	90%
Rottweil R 901	<<locked>>	81%	41974	66%	**25	100%
Rottweil R 902	<<locked>>	81%	36332	57%	**13	97%
[Rottweil R 903]*	<<locked>>	81%	29617	46%	**85	94%
[Rottweil R 907]*	<<locked>>	90%	39073	61%	**62	90%
[SNPE Vectan SP 11]*	<<locked>>	81%	31256	49%	**48	93%
[SNPE Vectan SP 7]*	<<locked>>	81%	39508	62%	**92	94%
SNPE Vectan SP 9	<<locked>>	81%	38392	60%	**85	96%
SNPE Vectan Tubal 3000	<<locked>>	81%	40538	64%	**49	100%
SNPE Vectan Tubal 5000	<<locked>>	81%	33156	52%	**92	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	89%	35520	56%	**54	90%
[Shooters World Long Rifle]*	<<locked>>	85%	32300	51%	**08	90%
Shooters World Match Rifle	<<locked>>	81%	37623	59%	**82	99%
Shooters World Precision	<<locked>>	81%	34519	54%	**87	97%
Shooters World Tactical Rifle	<<locked>>	81%	49966	78%	**63	99%
Somchem S321	<<locked>>	81%	45179	71%	**23	99%
Somchem S335	<<locked>>	81%	39595	62%	**40	100%
Somchem S341	<<locked>>	81%	39552	62%	**99	96%
[Somchem S355]*	<<locked>>	81%	30690	48%	**98	94%
[Somchem S365]*	<<locked>>	84%	24047	38%	**54	90%
Vihtavuori N120	<<locked>>	81%	53069	83%	**74	100%
Vihtavuori N130	<<locked>>	81%	44947	70%	**12	100%
Vihtavuori N133	<<locked>>	81%	38029	60%	**00	100%
Vihtavuori N135	<<locked>>	81%	29776	47%	**69	99%
Vihtavuori N140	<<locked>>	81%	36289	57%	**10	99%
[Vihtavuori N150]*	<<locked>>	81%	25918	41%	**44	93%
[Vihtavuori N160]*	<<locked>>	84%	29762	47%	**79	90%
Vihtavuori N530	<<locked>>	81%	44251	69%	**04	99%
Vihtavuori N540	<<locked>>	81%	35926	56%	**26	99%
[Vihtavuori N550]*	<<locked>>	84%	29718	47%	**18	90%
[Vihtavuori N555]*	<<locked>>	94%	27891	44%	**15	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	26498	42%	**48	91%
Winchester 748	<<locked>>	81%	44527	70%	**46	99%
[Winchester 760]*	<<locked>>	88%	36796	58%	**92	90%
Winchester StaBALL Match	<<locked>>	81%	47529	74%	**89	99%

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.