Load data for .300 Blaser Mag + .309 | 71gr | H&N RN HS

Recommended Powder(s): Accurate 2015, Alliant AR-Comp, Alliant Reloder-10x, Hodgdon H322, SNPE Vectan SP 10

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.309 \| 71gr \| H&N RN HS
Bullet Weight:	71gr \| 4.6g
Bullet Diameter:	0.309" \| 7.85mm
Bullet Length:	0.469" \| 11.9mm
Caliber:	.300 Blaser Mag load data
Case Length (l3):	2.519" \| 64.0mm
Cartridge Length (C.O.L.):	2.846" \| 72.3mm
Seated Depth:	0.142" \| 3.6mm
Shank Seated Depth:	0.122" \| 3.1mm
Case Capacity:	92.4 Grains of Water \| 6.00 cm³
Primer Size:	Large Rifle Magnum (LRM)
Max. allowed Pressure:	60916 psi \| 4200 bar
LID:	LID_B7413_C351
Last updated:	2025-01-01

Load data for 134 loads in caliber .300 Blaser Mag with .309 | 71gr | H&N RN HS bullet and 67 powders such as Accurate 2015, Alliant AR-Comp, Alliant Reloder-10x, Hodgdon H322, SNPE Vectan SP 10. 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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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>>	97%	53882	88%	**65	95%
ADI AR 2207	<<locked>>	86%	54810	90%	**49	100%
ADI AR 2219	<<locked>>	88%	54288	89%	**81	99%
Accurate 2015 👍	<<locked>>	94%	54505	89%	**42	100%
[Accurate 2200]*	<<locked>>	94%	54607	90%	**19	93%
Accurate 2230	<<locked>>	91%	54636	90%	**22	96%
Accurate 2460	<<locked>>	91%	54201	89%	**12	97%
Accurate 2495	<<locked>>	97%	51793	85%	**45	100%
Accurate 2520	<<locked>>	96%	54752	90%	**88	98%
Accurate 4064	<<locked>>	97%	42061	69%	**02	97%
Alliant AR-Comp 👍	<<locked>>	96%	54099	89%	**04	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	97%	43627	72%	**22	93%
Alliant Reloder-10x 👍	<<locked>>	91%	54592	90%	**81	100%
[Alliant Reloder-15]*	<<locked>>	97%	47500	78%	**24	92%
Alliant Reloder-7	<<locked>>	85%	54433	89%	**16	100%
Baschieri & Pellagri 106	<<locked>>	88%	54288	89%	**34	100%
[Baschieri & Pellagri 107]*	<<locked>>	97%	54781	90%	**62	94%
Hodgdon BL-C2	<<locked>>	95%	54636	90%	**75	97%
Hodgdon Benchmark	<<locked>>	94%	54534	90%	**12	97%
Hodgdon CFE BLK	<<locked>>	85%	54317	89%	**76	97%
Hodgdon H322 👍	<<locked>>	94%	54694	90%	**01	99%
Hodgdon H335	<<locked>>	88%	54244	89%	**75	99%
Hodgdon H4198	<<locked>>	87%	54085	89%	**03	99%
Hodgdon TrailBoss	<<locked>>	97%	30414	50%	**61	100%
IMR 3031	<<locked>>	97%	46311	76%	**83	99%
IMR 4198	<<locked>>	91%	54737	90%	**58	100%
[IMR 4895]*	<<locked>>	97%	48762	80%	**86	94%
IMR 8208 XBR	<<locked>>	95%	54447	89%	**42	97%
Lovex D073.4	<<locked>>	90%	54244	89%	**22	98%
Lovex D073.5	<<locked>>	91%	54621	90%	**32	98%
Lovex D073.6	<<locked>>	97%	52431	86%	**22	98%
Lovex S060	<<locked>>	96%	54288	89%	**99	95%
Lovex S062	<<locked>>	97%	46006	76%	**58	95%
Norma 200	<<locked>>	88%	54534	90%	**52	100%
Norma 201	<<locked>>	97%	52025	85%	**06	96%
Norma 202	<<locked>>	97%	52997	87%	**35	99%
[Norma 203B]*	<<locked>>	97%	46601	76%	**94	93%
[Ramshot Big Game]*	<<locked>>	97%	47921	79%	**21	93%
[Ramshot TAC]*	<<locked>>	94%	54447	89%	**93	92%
Ramshot Wild Boar	<<locked>>	95%	54476	89%	**55	95%
Ramshot X-Terminator	<<locked>>	92%	54201	89%	**83	95%
ReloadSwiss RS 14	<<locked>>	96%	29660	49%	**07	100%
ReloadSwiss RS 40	<<locked>>	91%	54302	89%	**52	98%
ReloadSwiss RS 52	<<locked>>	97%	45847	75%	**37	95%
Rottweil R 901	<<locked>>	97%	54781	90%	**75	99%
Rottweil R 902	<<locked>>	97%	48486	80%	**98	95%
SNPE Vectan BA6 1/2	<<locked>>	86%	54708	90%	**70	100%
SNPE Vectan SP 10 👍	<<locked>>	88%	54563	90%	**85	99%
[SNPE Vectan SP 7]*	<<locked>>	96%	54491	89%	**96	93%
SNPE Vectan SP 9	<<locked>>	97%	53243	87%	**12	95%
SNPE Vectan Tubal 3000	<<locked>>	96%	54404	89%	**90	99%
SNPE Vectan Tubal 5000	<<locked>>	97%	44556	73%	**47	98%
Shooters World Match Rifle	<<locked>>	97%	52431	86%	**22	98%
Shooters World Precision	<<locked>>	97%	46006	76%	**58	95%
Shooters World Tactical Rifle	<<locked>>	89%	54665	90%	**06	96%
Somchem S321	<<locked>>	92%	54114	89%	**52	97%
Somchem S335	<<locked>>	97%	53882	88%	**76	99%
Somchem S341	<<locked>>	96%	54708	90%	**16	95%
Vihtavuori N120	<<locked>>	88%	54331	89%	**73	100%
Vihtavuori N130	<<locked>>	93%	54302	89%	**03	100%
Vihtavuori N133	<<locked>>	97%	50328	83%	**24	100%
Vihtavuori N135	<<locked>>	97%	38218	63%	**88	97%
Vihtavuori N140	<<locked>>	97%	49168	81%	**21	98%
Vihtavuori N530	<<locked>>	93%	54201	89%	**68	97%
Vihtavuori N540	<<locked>>	97%	49371	81%	**37	98%
Winchester 748	<<locked>>	93%	54694	90%	**08	98%
Winchester StaBALL Match	<<locked>>	90%	54273	89%	**45	96%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	88%	40045	66%	**20	90%
ADI AR 2207	<<locked>>	81%	45788	75%	**75	100%
ADI AR 2219	<<locked>>	81%	41611	68%	**93	97%
Accurate 2015	<<locked>>	81%	34113	56%	**40	96%
[Accurate 2200]*	<<locked>>	90%	45788	75%	**09	90%
[Accurate 2230]*	<<locked>>	81%	37362	61%	**86	90%
[Accurate 2460]*	<<locked>>	81%	36056	59%	**83	92%
[Accurate 2495]*	<<locked>>	81%	26701	44%	**30	92%
[Accurate 2520]*	<<locked>>	82%	31488	52%	**65	90%
[Accurate 4064]*	<<locked>>	87%	28935	47%	**83	90%
Alliant AR-Comp	<<locked>>	81%	30269	50%	**97	97%
[Alliant Reloder- TS 15.5]*	<<locked>>	92%	36825	60%	**38	90%
Alliant Reloder-10x	<<locked>>	81%	37855	62%	**98	98%
[Alliant Reloder-15]*	<<locked>>	93%	42018	69%	**76	90%
Alliant Reloder-7	<<locked>>	81%	46963	77%	**65	100%
Baschieri & Pellagri 106	<<locked>>	81%	42308	69%	**78	98%
[Baschieri & Pellagri 107]*	<<locked>>	91%	43758	72%	**99	90%
[Hodgdon BL-C2]*	<<locked>>	85%	35940	59%	**15	90%
[Hodgdon Benchmark]*	<<locked>>	81%	34925	57%	**17	91%
Hodgdon CFE BLK	<<locked>>	81%	46470	76%	**96	95%
[Hodgdon H322]*	<<locked>>	81%	34272	56%	**86	94%
Hodgdon H335	<<locked>>	81%	41365	68%	**63	96%
Hodgdon H4198	<<locked>>	81%	44309	73%	**93	97%
Hodgdon TrailBoss	<<locked>>	81%	23540	39%	**51	100%
[IMR 3031]*	<<locked>>	82%	26774	44%	**50	90%
IMR 4198	<<locked>>	81%	39842	65%	**34	99%
[IMR 4895]*	<<locked>>	91%	39639	65%	**40	90%
[IMR 8208 XBR]*	<<locked>>	84%	36419	60%	**86	90%
[Lovex D073.4]*	<<locked>>	81%	38029	62%	**25	92%
[Lovex D073.5]*	<<locked>>	81%	35810	59%	**63	92%
[Lovex D073.6]*	<<locked>>	84%	31488	52%	**65	90%
[Lovex S060]*	<<locked>>	87%	39624	65%	**25	90%
[Lovex S062]*	<<locked>>	90%	35839	59%	**73	90%
Norma 200	<<locked>>	81%	42496	70%	**96	100%
[Norma 201]*	<<locked>>	87%	35737	59%	**63	90%
[Norma 202]*	<<locked>>	81%	29805	49%	**96	90%
[Norma 203B]*	<<locked>>	93%	40016	66%	**30	90%
[Ramshot Big Game]*	<<locked>>	93%	40857	67%	**40	90%
[Ramshot TAC]*	<<locked>>	91%	49095	81%	**85	90%
[Ramshot Wild Boar]*	<<locked>>	87%	40089	66%	**04	90%
[Ramshot X-Terminator]*	<<locked>>	84%	40292	66%	**48	90%
ReloadSwiss RS 14	<<locked>>	81%	22960	38%	**90	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	37115	61%	**35	93%
[ReloadSwiss RS 52]*	<<locked>>	90%	35085	58%	**12	90%
[Rottweil R 901]*	<<locked>>	81%	31444	52%	**38	91%
[Rottweil R 902]*	<<locked>>	89%	36245	59%	**70	90%
SNPE Vectan BA6 1/2	<<locked>>	81%	46760	77%	**35	100%
SNPE Vectan SP 10	<<locked>>	81%	42366	70%	**89	96%
[SNPE Vectan SP 7]*	<<locked>>	92%	47369	78%	**35	90%
[SNPE Vectan SP 9]*	<<locked>>	89%	39711	65%	**91	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	81%	31430	52%	**92	91%
[SNPE Vectan Tubal 5000]*	<<locked>>	83%	26977	44%	**28	90%
[Shooters World Match Rifle]*	<<locked>>	84%	31488	52%	**65	90%
[Shooters World Precision]*	<<locked>>	90%	35839	59%	**73	90%
[Shooters World Tactical Rifle]*	<<locked>>	81%	39871	65%	**55	92%
[Somchem S321]*	<<locked>>	81%	35012	57%	**53	90%
[Somchem S335]*	<<locked>>	81%	30560	50%	**69	92%
[Somchem S341]*	<<locked>>	88%	40582	67%	**78	90%
Vihtavuori N120	<<locked>>	81%	42380	70%	**37	100%
Vihtavuori N130	<<locked>>	81%	35505	58%	**53	97%
[Vihtavuori N133]*	<<locked>>	81%	29066	48%	**37	94%
[Vihtavuori N135]*	<<locked>>	86%	25440	42%	**48	90%
[Vihtavuori N140]*	<<locked>>	82%	28761	47%	**40	90%
[Vihtavuori N530]*	<<locked>>	82%	36143	59%	**96	90%
[Vihtavuori N540]*	<<locked>>	84%	30008	49%	**96	90%
[Winchester 748]*	<<locked>>	81%	34098	56%	**63	90%
[Winchester StaBALL Match]*	<<locked>>	82%	37956	62%	**55	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.

<<locked>>... you need to buy an access license to unlock the data