Load data for .25-35 Win. + .257 | 70gr | Sierra Blitzking

Recommended Powder(s): none

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.257 \| 70gr \| Sierra Blitzking
Manufacturer SKU:	1605
Bullet Weight:	70gr \| 4.5g
Bullet Diameter:	0.257" \| 6.53mm
Bullet Length:	0.874" \| 22.2mm
Caliber:	.25-35 Win. load data
Case Length (l3):	2.040" \| 51.8mm
Cartridge Length (C.O.L.):	2.512" \| 63.8mm
Seated Depth:	0.402" \| 10.2mm
Shank Seated Depth:	0.402" \| 10.2mm
Case Capacity:	38.0 Grains of Water \| 2.47 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	44237 psi \| 3050 bar
LID:	LID_B5786_C216
Last updated:	2025-01-01

Load data for 44 loads in caliber .25-35 Win. with .257 | 70gr | Sierra Blitzking bullet and 22 powders such as none. 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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C.O.L. (mm)
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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 2207	<<locked>>	86%	39276	89%	**76	100%
[ADI AR 2219]*	<<locked>>	90%	39697	90%	**02	94%
Accurate 2015	<<locked>>	95%	38363	87%	**53	96%
[Accurate 2495]*	<<locked>>	97%	31299	71%	**84	93%
Alliant AR-Comp	<<locked>>	97%	35810	81%	**69	98%
Alliant Reloder-10x	<<locked>>	93%	39595	89%	**09	98%
Alliant Reloder-7	<<locked>>	85%	39421	89%	**36	98%
[Baschieri & Pellagri 106]*	<<locked>>	88%	38928	88%	**64	94%
[Hodgdon H322]*	<<locked>>	96%	39697	90%	**02	94%
[Hodgdon H335]*	<<locked>>	90%	39566	89%	**89	92%
[Hodgdon H4198]*	<<locked>>	85%	38754	88%	**64	93%
Hodgdon TrailBoss	<<locked>>	96%	28906	65%	**09	100%
IMR 4198	<<locked>>	90%	39189	89%	**43	98%
Norma 200	<<locked>>	88%	39247	89%	**79	98%
ReloadSwiss RS 14	<<locked>>	95%	28500	64%	**49	100%
[Rottweil R 901]*	<<locked>>	97%	38551	87%	**43	92%
[SNPE Vectan SP 10]*	<<locked>>	90%	39117	88%	**82	92%
[SNPE Vectan Tubal 3000]*	<<locked>>	96%	37768	85%	**58	92%
[Somchem S335]*	<<locked>>	97%	36840	83%	**64	93%
Vihtavuori N120	<<locked>>	89%	39784	90%	**43	100%
Vihtavuori N130	<<locked>>	94%	39305	89%	**23	97%
[Vihtavuori N133]*	<<locked>>	97%	34809	79%	**18	94%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2207	<<locked>>	81%	33040	75%	**28	99%
[ADI AR 2219]*	<<locked>>	83%	31633	72%	**85	90%
[Accurate 2015]*	<<locked>>	82%	25454	58%	**98	90%
[Accurate 2495]*	<<locked>>	91%	26237	59%	**23	91%
[Alliant AR-Comp]*	<<locked>>	83%	23511	53%	**52	90%
[Alliant Reloder-10x]*	<<locked>>	81%	27122	61%	**71	93%
Alliant Reloder-7	<<locked>>	81%	34708	78%	**22	97%
[Baschieri & Pellagri 106]*	<<locked>>	81%	30400	69%	**54	91%
[Hodgdon H322]*	<<locked>>	89%	31633	72%	**85	90%
[Hodgdon H335]*	<<locked>>	87%	34853	79%	**71	90%
[Hodgdon H4198]*	<<locked>>	81%	33881	77%	**36	91%
Hodgdon TrailBoss	<<locked>>	80%	22727	51%	**49	100%
IMR 4198	<<locked>>	81%	30081	68%	**97	95%
Norma 200	<<locked>>	81%	31111	70%	**76	96%
ReloadSwiss RS 14	<<locked>>	80%	22466	51%	**88	100%
[Rottweil R 901]*	<<locked>>	94%	35012	79%	**54	91%
[SNPE Vectan SP 10]*	<<locked>>	86%	34374	78%	**61	90%
[SNPE Vectan Tubal 3000]*	<<locked>>	93%	34113	77%	**66	90%
[Somchem S335]*	<<locked>>	91%	31256	71%	**23	90%
Vihtavuori N120	<<locked>>	81%	31343	71%	**46	99%
[Vihtavuori N130]*	<<locked>>	81%	26223	59%	**75	92%
[Vihtavuori N133]*	<<locked>>	88%	26905	61%	**89	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.