Load data for .243 Ackley Improved + .243 | 70gr | Hornady SP

Recommended Powder(s): Alliant Reloder-17, ReloadSwiss RS 52, ReloadSwiss RS 60, Rottweil R 903, Somchem S355

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.243 \| 70gr \| Hornady SP
Manufacturer SKU:	2410
Bullet Weight:	70gr \| 4.5g
Bullet Diameter:	0.243" \| 6.17mm
Bullet Length:	0.793" \| 20.1mm
Caliber:	.243 Ackley Improved load data
Case Length (l3):	2.045" \| 51.9mm
Cartridge Length (C.O.L.):	2.458" \| 62.4mm
Seated Depth:	0.380" \| 9.7mm
Shank Seated Depth:	0.380" \| 9.7mm
Case Capacity:	57.0 Grains of Water \| 3.70 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	55259 psi \| 3810 bar
LID:	LID_B2537_C1011
Last updated:	2025-02-02

Load data for 144 loads in caliber .243 Ackley Improved with .243 | 70gr | Hornady SP bullet and 72 powders such as Alliant Reloder-17, ReloadSwiss RS 52, ReloadSwiss RS 60, Rottweil R 903, Somchem S355. 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".

Go to the bottom of the "My Account " page to set the measure system (imperial vs. metric)
No data yet
C.O.L. (Inch)
C.O.L. (mm)
Case Length (Inch)
Case Length (mm)
CaseCapacity (GoW)
Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
Barrel Length (cm)
Safety Buffer (%)
.
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>>	84%	49545	90%	**76	98%
ADI AR 2208	<<locked>>	89%	49023	89%	**37	98%
[Accurate 2700]*	<<locked>>	90%	49574	90%	**61	93%
Accurate 4064	<<locked>>	88%	49153	89%	**50	100%
Accurate 4350	<<locked>>	96%	48588	88%	**06	97%
Alliant Reloder- TS 15.5	<<locked>>	89%	49472	90%	**73	99%
Alliant Reloder-15	<<locked>>	87%	49705	90%	**92	98%
Alliant Reloder-16	<<locked>>	97%	48341	87%	**35	97%
Alliant Reloder-17 👍	<<locked>>	93%	48762	88%	**55	99%
[Alliant Reloder-23]*	<<locked>>	97%	34287	62%	**61	94%
[Alliant Reloder-26]*	<<locked>>	97%	38319	69%	**28	92%
Baschieri & Pellagri 107	<<locked>>	84%	49110	89%	**73	97%
Hodgdon CFE223	<<locked>>	87%	49095	89%	**02	97%
Hodgdon H380	<<locked>>	89%	49342	89%	**66	97%
[Hodgdon H414]*	<<locked>>	92%	49211	89%	**99	94%
[Hodgdon H4350]*	<<locked>>	97%	46702	85%	**71	92%
Hodgdon Hybrid 100V	<<locked>>	97%	44570	81%	**87	98%
Hodgdon LVR	<<locked>>	94%	49240	89%	**02	96%
[Hodgdon Superperformance]*	<<locked>>	94%	49139	89%	**15	93%
Hodgdon VARGET	<<locked>>	90%	49603	90%	**46	98%
Hodgdon TrailBoss	<<locked>>	96%	33446	61%	**78	100%
IMR 3031	<<locked>>	87%	49023	89%	**83	100%
IMR 4064	<<locked>>	90%	48936	89%	**23	98%
[IMR 4166 Enduron]*	<<locked>>	90%	48834	88%	**81	94%
[IMR 4350]*	<<locked>>	96%	49037	89%	**20	93%
[IMR 4451 Enduron]*	<<locked>>	92%	49734	90%	**33	94%
IMR 4831	<<locked>>	96%	41466	75%	**12	95%
IMR 4895	<<locked>>	86%	48762	88%	**86	98%
Lovex D073.6	<<locked>>	84%	48863	88%	**50	100%
Lovex S060	<<locked>>	84%	49603	90%	**01	98%
Lovex S062	<<locked>>	87%	48907	88%	**30	99%
Lovex S065	<<locked>>	94%	49443	89%	**27	96%
[Lovex S070]*	<<locked>>	95%	49153	89%	**40	94%
Norma 201	<<locked>>	84%	48878	88%	**30	99%
Norma 202	<<locked>>	84%	49037	89%	**37	100%
Norma 203B	<<locked>>	87%	48907	89%	**79	98%
[Norma 204]*	<<locked>>	97%	49632	90%	**76	92%
Norma URP	<<locked>>	97%	48820	88%	**02	97%
Ramshot Big Game	<<locked>>	87%	48849	88%	**83	98%
Ramshot Hunter	<<locked>>	97%	47964	87%	**76	95%
ReloadSwiss RS 14	<<locked>>	96%	33460	61%	**18	100%
ReloadSwiss RS 50	<<locked>>	88%	48791	88%	**10	95%
ReloadSwiss RS 52 👍	<<locked>>	88%	49356	89%	**19	100%
ReloadSwiss RS 60 👍	<<locked>>	94%	49284	89%	**91	100%
ReloadSwiss RS 62	<<locked>>	97%	49269	89%	**25	97%
ReloadSwiss RS 70	<<locked>>	97%	49385	89%	**45	96%
Rottweil R 902	<<locked>>	86%	49255	89%	**27	99%
Rottweil R 903 👍	<<locked>>	91%	49734	90%	**86	99%
[Rottweil R 907]*	<<locked>>	93%	49588	90%	**23	93%
SNPE Vectan SP 11	<<locked>>	90%	49676	90%	**09	98%
SNPE Vectan SP 7	<<locked>>	83%	49429	89%	**30	96%
SNPE Vectan SP 9	<<locked>>	85%	49284	89%	**56	98%
SNPE Vectan Tubal 3000	<<locked>>	84%	49081	89%	**64	100%
SNPE Vectan Tubal 5000	<<locked>>	90%	49559	90%	**55	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	94%	49211	89%	**55	94%
Shooters World Long Rifle	<<locked>>	94%	49443	89%	**27	96%
Shooters World Match Rifle	<<locked>>	84%	48863	88%	**50	100%
Shooters World Precision	<<locked>>	87%	48907	88%	**30	99%
Somchem S335	<<locked>>	84%	48936	89%	**55	100%
Somchem S341	<<locked>>	83%	49211	89%	**37	98%
Somchem S355 👍	<<locked>>	91%	49313	89%	**56	99%
Somchem S365	<<locked>>	96%	43410	79%	**27	99%
Vihtavuori N133	<<locked>>	86%	49400	89%	**55	100%
Vihtavuori N135	<<locked>>	92%	49574	90%	**17	100%
Vihtavuori N140	<<locked>>	87%	49661	90%	**20	100%
Vihtavuori N150	<<locked>>	96%	49255	89%	**20	99%
Vihtavuori N160	<<locked>>	94%	48820	88%	**60	97%
Vihtavuori N540	<<locked>>	87%	49400	89%	**37	100%
Vihtavuori N550	<<locked>>	94%	49095	89%	**02	97%
[Vihtavuori N555]*	<<locked>>	96%	36753	66%	**66	94%
Winchester 6.5 StaBALL	<<locked>>	95%	48863	88%	**20	99%
[Winchester 760]*	<<locked>>	92%	49211	89%	**99	94%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	44715	81%	**68	97%
[ADI AR 2208]*	<<locked>>	81%	38174	69%	**81	94%
[Accurate 2700]*	<<locked>>	85%	41394	75%	**71	90%
Accurate 4064	<<locked>>	81%	38957	71%	**33	99%
[Accurate 4350]*	<<locked>>	84%	31357	57%	**63	90%
Alliant Reloder- TS 15.5	<<locked>>	81%	37420	68%	**00	96%
Alliant Reloder-15	<<locked>>	81%	40408	73%	**79	95%
[Alliant Reloder-16]*	<<locked>>	84%	32634	59%	**95	90%
[Alliant Reloder-17]*	<<locked>>	81%	32663	59%	**35	93%
[Alliant Reloder-23]*	<<locked>>	92%	29167	53%	**90	90%
[Alliant Reloder-26]*	<<locked>>	95%	35215	64%	**23	90%
Baschieri & Pellagri 107	<<locked>>	81%	44425	80%	**61	96%
[Hodgdon CFE223]*	<<locked>>	81%	38914	70%	**63	94%
[Hodgdon H380]*	<<locked>>	81%	38334	69%	**07	93%
[Hodgdon H414]*	<<locked>>	85%	39001	71%	**63	90%
[Hodgdon H4350]*	<<locked>>	93%	41263	75%	**50	90%
[Hodgdon Hybrid 100V]*	<<locked>>	82%	27746	50%	**08	90%
[Hodgdon LVR]*	<<locked>>	83%	33591	61%	**09	90%
[Hodgdon Superperformance]*	<<locked>>	90%	41742	76%	**28	90%
[Hodgdon VARGET]*	<<locked>>	81%	37811	68%	**71	94%
Hodgdon TrailBoss	<<locked>>	81%	26687	48%	**05	100%
IMR 3031	<<locked>>	81%	40959	74%	**19	100%
[IMR 4064]*	<<locked>>	81%	37202	67%	**48	94%
[IMR 4166 Enduron]*	<<locked>>	82%	38957	71%	**54	90%
[IMR 4350]*	<<locked>>	91%	40828	74%	**33	90%
[IMR 4451 Enduron]*	<<locked>>	85%	39856	72%	**97	90%
[IMR 4831]*	<<locked>>	88%	31241	57%	**30	90%
IMR 4895	<<locked>>	81%	41307	75%	**09	96%
Lovex D073.6	<<locked>>	81%	43903	79%	**48	99%
Lovex S060	<<locked>>	81%	44875	81%	**02	97%
Lovex S062	<<locked>>	81%	39624	72%	**33	97%
[Lovex S065]*	<<locked>>	83%	34824	63%	**79	90%
[Lovex S070]*	<<locked>>	88%	38130	69%	**81	90%
Norma 201	<<locked>>	81%	43990	80%	**22	98%
Norma 202	<<locked>>	81%	44222	80%	**32	100%
Norma 203B	<<locked>>	81%	39653	72%	**59	96%
[Norma 204]*	<<locked>>	94%	45571	82%	**84	90%
[Norma URP]*	<<locked>>	84%	32387	59%	**82	90%
Ramshot Big Game	<<locked>>	81%	39421	71%	**76	96%
[Ramshot Hunter]*	<<locked>>	89%	37347	68%	**10	90%
ReloadSwiss RS 14	<<locked>>	81%	26687	48%	**44	100%
[ReloadSwiss RS 50]*	<<locked>>	81%	38856	70%	**81	91%
ReloadSwiss RS 52	<<locked>>	81%	38827	70%	**79	97%
[ReloadSwiss RS 60]*	<<locked>>	81%	31792	58%	**05	93%
[ReloadSwiss RS 62]*	<<locked>>	85%	32605	59%	**12	90%
[ReloadSwiss RS 70]*	<<locked>>	88%	36071	65%	**04	90%
Rottweil R 902	<<locked>>	81%	41553	75%	**50	98%
Rottweil R 903	<<locked>>	81%	35099	64%	**31	95%
[Rottweil R 907]*	<<locked>>	87%	40988	74%	**23	90%
[SNPE Vectan SP 11]*	<<locked>>	81%	36187	65%	**87	94%
SNPE Vectan SP 7	<<locked>>	81%	45614	83%	**55	95%
SNPE Vectan SP 9	<<locked>>	81%	43627	79%	**38	97%
SNPE Vectan Tubal 3000	<<locked>>	81%	45034	82%	**76	100%
SNPE Vectan Tubal 5000	<<locked>>	81%	37347	68%	**02	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	87%	38638	70%	**31	90%
[Shooters World Long Rifle]*	<<locked>>	83%	34824	63%	**79	90%
Shooters World Match Rifle	<<locked>>	81%	43903	79%	**48	99%
Shooters World Precision	<<locked>>	81%	39624	72%	**33	97%
Somchem S335	<<locked>>	81%	45049	82%	**86	100%
Somchem S341	<<locked>>	81%	45339	82%	**55	97%
Somchem S355	<<locked>>	81%	35868	65%	**41	95%
[Somchem S365]*	<<locked>>	81%	25976	47%	**89	90%
Vihtavuori N133	<<locked>>	81%	42598	77%	**23	100%
Vihtavuori N135	<<locked>>	81%	34838	63%	**02	100%
Vihtavuori N140	<<locked>>	81%	40973	74%	**40	100%
[Vihtavuori N150]*	<<locked>>	81%	30501	55%	**67	94%
[Vihtavuori N160]*	<<locked>>	81%	31807	58%	**20	90%
Vihtavuori N540	<<locked>>	81%	41017	74%	**59	99%
[Vihtavuori N550]*	<<locked>>	81%	31995	58%	**63	90%
[Vihtavuori N555]*	<<locked>>	91%	30298	55%	**59	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	30705	56%	**58	92%
[Winchester 760]*	<<locked>>	85%	39001	71%	**63	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.