Load data for .300 Rem. SA Ultra Mag + .310 | 123gr | Hornady SST

Recommended Powder(s): ADI AR 2206H, Accurate 2520, Hodgdon BL-C2, Ramshot Wild Boar, Vihtavuori N530

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.310 \| 123gr \| Hornady SST
Manufacturer SKU:	3142
Bullet Weight:	123gr \| 8.0g
Bullet Diameter:	0.310" \| 7.87mm
Bullet Length:	0.990" \| 25.1mm
Caliber:	.300 Rem. SA Ultra Mag load data
Case Length (l3):	2.003" \| 50.9mm
Cartridge Length (C.O.L.):	2.783" \| 70.7mm
Seated Depth:	0.210" \| 5.3mm
Shank Seated Depth:	0.210" \| 5.3mm
Case Capacity:	74.0 Grains of Water \| 4.80 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	64107 psi \| 4420 bar
LID:	LID_B10913_C373
Last updated:	2025-02-02

Load data for 190 loads in caliber .300 Rem. SA Ultra Mag with .310 | 123gr | Hornady SST bullet and 95 powders such as ADI AR 2206H, Accurate 2520, Hodgdon BL-C2, Ramshot Wild Boar, Vihtavuori N530. 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>>	93%	57319	89%	**07	99%
ADI AR 2208	<<locked>>	97%	54476	85%	**38	98%
ADI AR 2219	<<locked>>	84%	57580	90%	**87	100%
Accurate 2015	<<locked>>	89%	56985	89%	**09	100%
Accurate 2200	<<locked>>	91%	57348	89%	**64	98%
Accurate 2230	<<locked>>	87%	57580	90%	**58	99%
Accurate 2460	<<locked>>	87%	56739	89%	**48	100%
Accurate 2495	<<locked>>	92%	56811	89%	**87	100%
Accurate 2520 👍	<<locked>>	91%	56594	88%	**94	100%
[Accurate 2700]*	<<locked>>	97%	54201	85%	**33	93%
Accurate 4064	<<locked>>	97%	54433	85%	**64	100%
[Accurate 4350]*	<<locked>>	97%	40799	64%	**45	94%
Alliant AR-Comp	<<locked>>	91%	57203	89%	**71	100%
Alliant Reloder- TS 15.5	<<locked>>	97%	53142	83%	**51	99%
Alliant Reloder-10x	<<locked>>	87%	57348	89%	**38	100%
Alliant Reloder-15	<<locked>>	96%	57319	89%	**27	98%
[Alliant Reloder-16]*	<<locked>>	97%	41379	65%	**54	94%
Alliant Reloder-17	<<locked>>	97%	47718	74%	**45	98%
Baschieri & Pellagri 106	<<locked>>	85%	57246	89%	**63	100%
Baschieri & Pellagri 107	<<locked>>	93%	57159	89%	**20	98%
Hodgdon BL-C2 👍	<<locked>>	91%	57072	89%	**27	100%
Hodgdon Benchmark	<<locked>>	90%	57653	90%	**41	100%
Hodgdon CFE223	<<locked>>	97%	57638	90%	**63	98%
Hodgdon H322	<<locked>>	89%	57145	89%	**74	100%
Hodgdon H335	<<locked>>	85%	57609	90%	**84	100%
Hodgdon H380	<<locked>>	97%	56014	87%	**87	97%
[Hodgdon H414]*	<<locked>>	97%	49110	77%	**05	93%
Hodgdon H4198	<<locked>>	84%	57159	89%	**92	100%
Hodgdon Hybrid 100V	<<locked>>	97%	37927	59%	**36	95%
[Hodgdon LVR]*	<<locked>>	97%	45368	71%	**23	94%
Hodgdon VARGET	<<locked>>	97%	54085	84%	**22	98%
Hodgdon TrailBoss	<<locked>>	97%	32880	51%	**85	100%
IMR 3031	<<locked>>	96%	57348	89%	**30	100%
IMR 4064	<<locked>>	97%	52620	82%	**96	98%
[IMR 4166 Enduron]*	<<locked>>	97%	53330	83%	**59	94%
IMR 4198	<<locked>>	86%	57246	89%	**92	100%
[IMR 4451 Enduron]*	<<locked>>	97%	50154	78%	**36	93%
IMR 4895	<<locked>>	95%	57029	89%	**37	99%
IMR 8208 XBR	<<locked>>	92%	57493	90%	**81	100%
Lovex D073.4	<<locked>>	86%	57522	90%	**55	100%
Lovex D073.5	<<locked>>	87%	57188	89%	**64	100%
Lovex D073.6	<<locked>>	93%	56594	88%	**94	100%
Lovex S060	<<locked>>	93%	56985	89%	**35	99%
Lovex S062	<<locked>>	97%	56434	88%	**71	100%
[Lovex S065]*	<<locked>>	97%	46137	72%	**61	94%
[Lovex S070]*	<<locked>>	97%	44063	69%	**41	91%
Norma 201	<<locked>>	94%	57174	89%	**78	100%
Norma 202	<<locked>>	94%	57421	90%	**81	100%
Norma 203B	<<locked>>	97%	57261	89%	**33	99%
[Norma URP]*	<<locked>>	97%	41553	65%	**61	94%
Ramshot Big Game	<<locked>>	96%	57130	89%	**43	99%
Ramshot TAC	<<locked>>	91%	56855	89%	**64	97%
Ramshot Wild Boar 👍	<<locked>>	91%	57174	89%	**07	99%
Ramshot X-Terminator	<<locked>>	89%	57392	90%	**55	99%
ReloadSwiss RS 14	<<locked>>	96%	32967	51%	**28	100%
ReloadSwiss RS 40	<<locked>>	87%	57377	90%	**81	100%
ReloadSwiss RS 50	<<locked>>	97%	55927	87%	**51	95%
ReloadSwiss RS 52	<<locked>>	97%	56608	88%	**56	100%
ReloadSwiss RS 60	<<locked>>	97%	46470	72%	**28	98%
[ReloadSwiss RS 62]*	<<locked>>	97%	40364	63%	**51	93%
[ReloadSwiss RS 70]*	<<locked>>	97%	42134	66%	**61	92%
Rottweil R 901	<<locked>>	91%	56971	89%	**55	100%
Rottweil R 902	<<locked>>	96%	57014	89%	**58	99%
Rottweil R 903	<<locked>>	97%	50473	79%	**96	98%
[Rottweil R 907]*	<<locked>>	97%	48704	76%	**94	92%
SNPE Vectan SP 10	<<locked>>	84%	56869	89%	**74	100%
SNPE Vectan SP 11	<<locked>>	97%	52170	81%	**68	98%
SNPE Vectan SP 7	<<locked>>	92%	57435	90%	**71	97%
SNPE Vectan SP 9	<<locked>>	94%	56782	89%	**87	99%
SNPE Vectan Tubal 3000	<<locked>>	93%	57522	90%	**92	100%
SNPE Vectan Tubal 5000	<<locked>>	97%	53635	84%	**33	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	97%	45847	72%	**02	92%
[Shooters World Long Rifle]*	<<locked>>	97%	46137	72%	**61	94%
Shooters World Match Rifle	<<locked>>	93%	56594	88%	**94	100%
Shooters World Precision	<<locked>>	97%	56434	88%	**71	100%
Shooters World Tactical Rifle	<<locked>>	86%	57464	90%	**35	99%
Somchem S321	<<locked>>	88%	57188	89%	**91	100%
Somchem S335	<<locked>>	93%	57508	90%	**02	100%
Somchem S341	<<locked>>	92%	57638	90%	**87	99%
Somchem S355	<<locked>>	97%	50473	79%	**86	98%
Somchem S365	<<locked>>	97%	36811	57%	**82	96%
Vihtavuori N120	<<locked>>	84%	57159	89%	**14	100%
Vihtavuori N130	<<locked>>	89%	57014	89%	**76	100%
Vihtavuori N133	<<locked>>	95%	57043	89%	**89	100%
Vihtavuori N135	<<locked>>	97%	48646	76%	**17	100%
Vihtavuori N140	<<locked>>	96%	57130	89%	**45	100%
Vihtavuori N150	<<locked>>	97%	43134	67%	**18	98%
Vihtavuori N160	<<locked>>	97%	45252	71%	**91	95%
Vihtavuori N530 👍	<<locked>>	90%	57653	90%	**01	100%
Vihtavuori N540	<<locked>>	96%	56956	89%	**78	100%
Vihtavuori N550	<<locked>>	97%	45876	72%	**53	95%
Winchester 6.5 StaBALL	<<locked>>	97%	44889	70%	**41	97%
Winchester 748	<<locked>>	89%	57276	89%	**23	100%
[Winchester 760]*	<<locked>>	97%	49110	77%	**05	93%
Winchester StaBALL Match	<<locked>>	87%	57667	90%	**14	99%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	39117	61%	**46	95%
[ADI AR 2208]*	<<locked>>	81%	33344	52%	**69	91%
ADI AR 2219	<<locked>>	81%	51503	80%	**86	100%
Accurate 2015	<<locked>>	81%	44353	69%	**99	100%
[Accurate 2200]*	<<locked>>	81%	41205	64%	**46	93%
Accurate 2230	<<locked>>	81%	46775	73%	**64	98%
Accurate 2460	<<locked>>	81%	46557	73%	**68	99%
Accurate 2495	<<locked>>	81%	38798	61%	**63	100%
Accurate 2520	<<locked>>	81%	39943	62%	**79	98%
[Accurate 2700]*	<<locked>>	91%	45078	70%	**66	90%
Accurate 4064	<<locked>>	81%	32634	51%	**05	97%
[Accurate 4350]*	<<locked>>	91%	33098	52%	**51	90%
Alliant AR-Comp	<<locked>>	81%	39972	62%	**89	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	81%	31995	50%	**79	93%
Alliant Reloder-10x	<<locked>>	81%	48167	75%	**81	100%
[Alliant Reloder-15]*	<<locked>>	81%	34853	54%	**51	92%
[Alliant Reloder-16]*	<<locked>>	91%	34534	54%	**67	90%
[Alliant Reloder-17]*	<<locked>>	84%	30632	48%	**79	90%
Baschieri & Pellagri 106	<<locked>>	81%	50198	78%	**45	100%
[Baschieri & Pellagri 107]*	<<locked>>	81%	37913	59%	**20	93%
Hodgdon BL-C2	<<locked>>	81%	39943	62%	**89	96%
Hodgdon Benchmark	<<locked>>	81%	43279	68%	**69	98%
[Hodgdon CFE223]*	<<locked>>	81%	33895	53%	**38	90%
Hodgdon H322	<<locked>>	81%	43511	68%	**35	100%
Hodgdon H335	<<locked>>	81%	50792	79%	**79	100%
[Hodgdon H380]*	<<locked>>	82%	34345	54%	**15	90%
[Hodgdon H414]*	<<locked>>	92%	42090	66%	**54	90%
Hodgdon H4198	<<locked>>	81%	52968	83%	**27	100%
[Hodgdon Hybrid 100V]*	<<locked>>	89%	29936	47%	**13	90%
[Hodgdon LVR]*	<<locked>>	90%	36056	56%	**97	90%
[Hodgdon VARGET]*	<<locked>>	81%	32924	51%	**59	91%
Hodgdon TrailBoss	<<locked>>	81%	25962	40%	**18	100%
IMR 3031	<<locked>>	81%	34925	54%	**94	99%
[IMR 4064]*	<<locked>>	81%	32343	50%	**36	91%
[IMR 4166 Enduron]*	<<locked>>	89%	41887	65%	**30	90%
IMR 4198	<<locked>>	81%	48820	76%	**61	100%
[IMR 4451 Enduron]*	<<locked>>	91%	42540	66%	**69	90%
[IMR 4895]*	<<locked>>	81%	35708	56%	**84	93%
IMR 8208 XBR	<<locked>>	81%	41162	64%	**69	97%
Lovex D073.4	<<locked>>	81%	48573	76%	**04	99%
Lovex D073.5	<<locked>>	81%	46137	72%	**64	99%
Lovex D073.6	<<locked>>	81%	37304	58%	**23	98%
Lovex S060	<<locked>>	81%	39798	62%	**87	95%
Lovex S062	<<locked>>	81%	34301	54%	**08	95%
[Lovex S065]*	<<locked>>	90%	37130	58%	**64	90%
[Lovex S070]*	<<locked>>	95%	40727	64%	**63	90%
Norma 201	<<locked>>	81%	38145	60%	**97	96%
Norma 202	<<locked>>	81%	38334	60%	**23	98%
[Norma 203B]*	<<locked>>	81%	34389	54%	**41	93%
[Norma URP]*	<<locked>>	91%	33924	53%	**61	90%
[Ramshot Big Game]*	<<locked>>	81%	33765	53%	**31	92%
[Ramshot TAC]*	<<locked>>	81%	41176	64%	**49	92%
Ramshot Wild Boar	<<locked>>	81%	40263	63%	**76	95%
Ramshot X-Terminator	<<locked>>	81%	44715	70%	**22	96%
ReloadSwiss RS 14	<<locked>>	81%	26078	41%	**57	100%
ReloadSwiss RS 40	<<locked>>	81%	46180	72%	**74	99%
[ReloadSwiss RS 50]*	<<locked>>	86%	40118	63%	**30	90%
[ReloadSwiss RS 52]*	<<locked>>	81%	32706	51%	**38	94%
[ReloadSwiss RS 60]*	<<locked>>	84%	29907	47%	**56	90%
[ReloadSwiss RS 62]*	<<locked>>	92%	35114	55%	**10	90%
[ReloadSwiss RS 70]*	<<locked>>	94%	38522	60%	**76	90%
Rottweil R 901	<<locked>>	81%	42061	66%	**76	99%
Rottweil R 902	<<locked>>	81%	36550	57%	**44	95%
[Rottweil R 903]*	<<locked>>	81%	29515	46%	**03	91%
[Rottweil R 907]*	<<locked>>	94%	44585	70%	**09	90%
SNPE Vectan SP 10	<<locked>>	81%	51866	81%	**89	100%
[SNPE Vectan SP 11]*	<<locked>>	81%	30966	48%	**53	90%
[SNPE Vectan SP 7]*	<<locked>>	81%	38972	61%	**10	92%
[SNPE Vectan SP 9]*	<<locked>>	81%	37652	59%	**00	94%
SNPE Vectan Tubal 3000	<<locked>>	81%	39958	62%	**77	99%
SNPE Vectan Tubal 5000	<<locked>>	81%	32590	51%	**13	98%
[SNPE Vectan Tubal 7000]*	<<locked>>	93%	40988	64%	**04	90%
[Shooters World Long Rifle]*	<<locked>>	90%	37130	58%	**64	90%
Shooters World Match Rifle	<<locked>>	81%	37304	58%	**23	98%
Shooters World Precision	<<locked>>	81%	34301	54%	**08	95%
Shooters World Tactical Rifle	<<locked>>	81%	49298	77%	**00	98%
Somchem S321	<<locked>>	81%	44135	69%	**51	98%
Somchem S335	<<locked>>	81%	39247	61%	**71	99%
[Somchem S341]*	<<locked>>	81%	38537	60%	**13	94%
[Somchem S355]*	<<locked>>	81%	30589	48%	**23	92%
[Somchem S365]*	<<locked>>	87%	27195	42%	**71	90%
Vihtavuori N120	<<locked>>	81%	52025	81%	**35	100%
Vihtavuori N130	<<locked>>	81%	44657	70%	**66	100%
Vihtavuori N133	<<locked>>	81%	37304	58%	**31	100%
Vihtavuori N135	<<locked>>	81%	29646	46%	**97	98%
Vihtavuori N140	<<locked>>	81%	35607	56%	**35	98%
[Vihtavuori N150]*	<<locked>>	81%	26150	41%	**62	91%
[Vihtavuori N160]*	<<locked>>	88%	34330	54%	**25	90%
Vihtavuori N530	<<locked>>	81%	43482	68%	**31	98%
Vihtavuori N540	<<locked>>	81%	35273	55%	**48	98%
[Vihtavuori N550]*	<<locked>>	88%	33779	53%	**51	90%
[Winchester 6.5 StaBALL]*	<<locked>>	84%	29718	46%	**51	90%
Winchester 748	<<locked>>	81%	43250	67%	**74	98%
[Winchester 760]*	<<locked>>	92%	42090	66%	**54	90%
Winchester StaBALL Match	<<locked>>	81%	46485	73%	**23	98%

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