Load data for .256 Mag. Gibbs + .257 | 72gr | CutEdge ESP Raptor

Recommended Powder(s): Accurate 2495, Accurate 4064, Hodgdon H322, IMR 3031, Norma 202

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.257 \| 72gr \| CutEdge ESP Raptor
Manufacturer SKU:	ESP I70 RAPTOR WT
Bullet Weight:	72gr \| 4.7g
Bullet Diameter:	0.257" \| 6.53mm
Bullet Length:	1.143" \| 29.0mm
Caliber:	.256 Mag. Gibbs load data
Case Length (l3):	2.173" \| 55.2mm
Cartridge Length (C.O.L.):	3.004" \| 76.3mm
Seated Depth:	0.312" \| 7.9mm
Shank Seated Depth:	0.312" \| 7.9mm
Case Capacity:	56.0 Grains of Water \| 3.64 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	49313 psi \| 3400 bar
LID:	LID_B8417_C231
Last updated:	2025-01-01

Load data for 116 loads in caliber .256 Mag. Gibbs with .257 | 72gr | CutEdge ESP Raptor bullet and 58 powders such as Accurate 2495, Accurate 4064, Hodgdon H322, IMR 3031, Norma 202. 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>>	88%	44251	90%	**27	95%
[ADI AR 2208]*	<<locked>>	93%	43990	89%	**81	94%
Accurate 2015	<<locked>>	84%	44121	89%	**68	100%
[Accurate 2200]*	<<locked>>	85%	43381	88%	**41	92%
Accurate 2495 👍	<<locked>>	88%	43830	89%	**37	100%
Accurate 2520	<<locked>>	87%	44164	90%	**27	98%
Accurate 4064 👍	<<locked>>	94%	43424	88%	**30	99%
Alliant AR-Comp	<<locked>>	87%	43540	88%	**43	100%
Alliant Reloder- TS 15.5	<<locked>>	94%	44208	90%	**40	96%
[Alliant Reloder-15]*	<<locked>>	91%	43656	89%	**23	94%
[Alliant Reloder-17]*	<<locked>>	97%	42554	86%	**50	94%
[Baschieri & Pellagri 107]*	<<locked>>	88%	43830	89%	**04	93%
Hodgdon BL-C2	<<locked>>	87%	43947	89%	**43	96%
Hodgdon Benchmark	<<locked>>	84%	43656	89%	**41	97%
[Hodgdon CFE223]*	<<locked>>	92%	43613	88%	**30	93%
Hodgdon H322 👍	<<locked>>	84%	43772	89%	**17	99%
[Hodgdon H380]*	<<locked>>	93%	44179	90%	**07	92%
[Hodgdon VARGET]*	<<locked>>	93%	43627	88%	**74	93%
Hodgdon TrailBoss	<<locked>>	97%	32097	65%	**85	100%
IMR 3031 👍	<<locked>>	91%	43439	88%	**69	100%
[IMR 4064]*	<<locked>>	94%	43903	89%	**74	94%
IMR 4895	<<locked>>	91%	43816	89%	**40	95%
IMR 8208 XBR	<<locked>>	86%	43961	89%	**91	96%
Lovex D073.6	<<locked>>	89%	44164	90%	**27	98%
[Lovex S060]*	<<locked>>	87%	43671	89%	**25	94%
Lovex S062	<<locked>>	92%	44106	89%	**01	96%
Norma 201	<<locked>>	89%	44324	90%	**01	96%
Norma 202 👍	<<locked>>	89%	44295	90%	**20	99%
Norma 203B	<<locked>>	92%	43758	89%	**27	95%
[Ramshot Big Game]*	<<locked>>	92%	44367	90%	**40	94%
[Ramshot Wild Boar]*	<<locked>>	86%	43497	88%	**07	94%
[Ramshot X-Terminator]*	<<locked>>	83%	44034	89%	**61	94%
ReloadSwiss RS 14	<<locked>>	96%	31720	64%	**24	100%
ReloadSwiss RS 52	<<locked>>	93%	43671	89%	**79	97%
ReloadSwiss RS 60	<<locked>>	97%	41365	84%	**33	95%
Rottweil R 901	<<locked>>	86%	43627	88%	**71	98%
Rottweil R 902	<<locked>>	90%	43656	89%	**71	96%
Rottweil R 903	<<locked>>	96%	44121	89%	**23	95%
[SNPE Vectan SP 11]*	<<locked>>	95%	43888	89%	**50	94%
[SNPE Vectan SP 7]*	<<locked>>	87%	43497	88%	**55	92%
SNPE Vectan SP 9	<<locked>>	89%	44309	90%	**07	95%
SNPE Vectan Tubal 3000	<<locked>>	87%	44222	90%	**35	98%
SNPE Vectan Tubal 5000	<<locked>>	93%	44092	89%	**35	99%
Shooters World Match Rifle	<<locked>>	89%	44164	90%	**27	98%
Shooters World Precision	<<locked>>	92%	44106	89%	**01	96%
Somchem S321	<<locked>>	84%	44077	89%	**07	96%
Somchem S335	<<locked>>	88%	44063	89%	**35	99%
[Somchem S341]*	<<locked>>	87%	43743	89%	**74	94%
Somchem S355	<<locked>>	96%	43947	89%	**20	95%
Vihtavuori N130	<<locked>>	84%	44005	89%	**25	100%
Vihtavuori N133	<<locked>>	89%	43918	89%	**41	100%
Vihtavuori N135	<<locked>>	97%	43236	88%	**91	100%
Vihtavuori N140	<<locked>>	91%	44193	90%	**94	99%
Vihtavuori N150	<<locked>>	97%	38435	78%	**50	95%
Vihtavuori N530	<<locked>>	84%	43714	89%	**01	96%
Vihtavuori N540	<<locked>>	91%	43743	89%	**04	98%
[Winchester 6.5 StaBALL]*	<<locked>>	96%	40248	82%	**63	94%
Winchester 748	<<locked>>	84%	44077	89%	**56	97%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	81%	34925	71%	**74	91%
[ADI AR 2208]*	<<locked>>	86%	35578	72%	**71	90%
Accurate 2015	<<locked>>	81%	39508	80%	**66	100%
[Accurate 2200]*	<<locked>>	82%	38145	77%	**10	90%
Accurate 2495	<<locked>>	81%	33649	68%	**91	98%
Accurate 2520	<<locked>>	81%	35070	71%	**04	95%
[Accurate 4064]*	<<locked>>	81%	28152	57%	**04	93%
Alliant AR-Comp	<<locked>>	81%	35201	71%	**50	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	84%	30806	62%	**72	90%
[Alliant Reloder-15]*	<<locked>>	85%	35157	71%	**94	90%
[Alliant Reloder-17]*	<<locked>>	91%	35186	71%	**46	90%
[Baschieri & Pellagri 107]*	<<locked>>	83%	36999	75%	**33	90%
[Hodgdon BL-C2]*	<<locked>>	81%	35317	72%	**17	93%
Hodgdon Benchmark	<<locked>>	81%	39233	80%	**36	95%
[Hodgdon CFE223]*	<<locked>>	88%	38421	78%	**92	90%
Hodgdon H322	<<locked>>	81%	39247	80%	**09	98%
[Hodgdon H380]*	<<locked>>	90%	39508	80%	**89	90%
[Hodgdon VARGET]*	<<locked>>	87%	36013	73%	**81	90%
Hodgdon TrailBoss	<<locked>>	81%	25324	51%	**08	100%
IMR 3031	<<locked>>	81%	30734	62%	**22	96%
[IMR 4064]*	<<locked>>	87%	35201	71%	**61	90%
[IMR 4895]*	<<locked>>	83%	33750	68%	**77	90%
[IMR 8208 XBR]*	<<locked>>	81%	36927	75%	**10	94%
[Lovex D073.6]*	<<locked>>	81%	32793	67%	**45	94%
[Lovex S060]*	<<locked>>	81%	36071	73%	**28	91%
[Lovex S062]*	<<locked>>	81%	30371	62%	**27	90%
[Norma 201]*	<<locked>>	81%	34171	69%	**31	93%
Norma 202	<<locked>>	81%	33953	69%	**61	96%
[Norma 203B]*	<<locked>>	84%	33750	68%	**58	90%
[Ramshot Big Game]*	<<locked>>	85%	35070	71%	**07	90%
[Ramshot Wild Boar]*	<<locked>>	81%	35984	73%	**04	91%
[Ramshot X-Terminator]*	<<locked>>	81%	40596	82%	**66	93%
ReloadSwiss RS 14	<<locked>>	81%	25077	51%	**44	100%
[ReloadSwiss RS 52]*	<<locked>>	81%	29370	60%	**59	90%
[ReloadSwiss RS 60]*	<<locked>>	91%	34229	69%	**07	90%
Rottweil R 901	<<locked>>	81%	37478	76%	**30	97%
[Rottweil R 902]*	<<locked>>	81%	32329	66%	**72	92%
[Rottweil R 903]*	<<locked>>	87%	32053	65%	**15	90%
[SNPE Vectan SP 11]*	<<locked>>	88%	34650	70%	**94	90%
[SNPE Vectan SP 7]*	<<locked>>	85%	39914	81%	**63	90%
[SNPE Vectan SP 9]*	<<locked>>	81%	33620	68%	**25	90%
SNPE Vectan Tubal 3000	<<locked>>	81%	36114	73%	**38	96%
SNPE Vectan Tubal 5000	<<locked>>	81%	29370	60%	**48	95%
[Shooters World Match Rifle]*	<<locked>>	81%	32793	67%	**45	94%
[Shooters World Precision]*	<<locked>>	81%	30371	62%	**27	90%
Somchem S321	<<locked>>	81%	39711	81%	**02	95%
Somchem S335	<<locked>>	81%	35491	72%	**38	97%
[Somchem S341]*	<<locked>>	81%	34519	70%	**45	91%
[Somchem S355]*	<<locked>>	86%	32387	66%	**12	90%
Vihtavuori N130	<<locked>>	81%	40350	82%	**53	100%
Vihtavuori N133	<<locked>>	81%	33547	68%	**89	98%
[Vihtavuori N135]*	<<locked>>	81%	25860	52%	**05	94%
Vihtavuori N140	<<locked>>	81%	31575	64%	**66	95%
[Vihtavuori N150]*	<<locked>>	88%	28689	58%	**74	90%
Vihtavuori N530	<<locked>>	81%	39088	79%	**82	95%
[Vihtavuori N540]*	<<locked>>	81%	31517	64%	**79	94%
[Winchester 6.5 StaBALL]*	<<locked>>	92%	34156	69%	**89	90%
Winchester 748	<<locked>>	81%	38508	78%	**12	95%

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