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

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 SX
Manufacturer SKU:	2415
Bullet Weight:	70gr \| 4.5g
Bullet Diameter:	0.243" \| 6.17mm
Bullet Length:	0.795" \| 20.2mm
Caliber:	.243 Ackley Improved load data
Case Length (l3):	2.045" \| 51.9mm
Cartridge Length (C.O.L.):	2.458" \| 62.4mm
Seated Depth:	0.382" \| 9.7mm
Shank Seated Depth:	0.382" \| 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_B2538_C1011
Last updated:	2025-01-01

Load data for 142 loads in caliber .243 Ackley Improved with .243 | 70gr | Hornady SP SX bullet and 71 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".

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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>>	84%	49603	90%	**79	98%
ADI AR 2208	<<locked>>	89%	48936	89%	**37	98%
[Accurate 2700]*	<<locked>>	90%	49647	90%	**64	93%
Accurate 4064	<<locked>>	88%	49240	89%	**53	100%
Accurate 4350	<<locked>>	97%	49705	90%	**12	97%
Alliant Reloder- TS 15.5	<<locked>>	89%	49400	89%	**69	99%
Alliant Reloder-15	<<locked>>	87%	48762	88%	**63	98%
Alliant Reloder-16	<<locked>>	97%	48254	87%	**19	97%
Alliant Reloder-17 👍	<<locked>>	93%	48849	88%	**58	99%
[Alliant Reloder-23]*	<<locked>>	97%	34345	62%	**64	94%
[Alliant Reloder-26]*	<<locked>>	97%	38392	69%	**35	92%
Baschieri & Pellagri 107	<<locked>>	84%	49182	89%	**73	97%
Hodgdon CFE223	<<locked>>	87%	49168	89%	**06	97%
Hodgdon H380	<<locked>>	89%	49414	89%	**69	97%
[Hodgdon H414]*	<<locked>>	92%	49298	89%	**02	94%
[Hodgdon H4350]*	<<locked>>	97%	46760	85%	**74	92%
Hodgdon Hybrid 100V	<<locked>>	97%	44643	81%	**91	98%
Hodgdon LVR	<<locked>>	94%	49313	89%	**06	96%
[Hodgdon Superperformance]*	<<locked>>	94%	49226	89%	**02	93%
Hodgdon VARGET	<<locked>>	90%	49661	90%	**50	98%
Hodgdon TrailBoss	<<locked>>	96%	33475	61%	**78	100%
IMR 3031	<<locked>>	87%	49081	89%	**86	100%
IMR 4064	<<locked>>	90%	49008	89%	**27	98%
[IMR 4166 Enduron]*	<<locked>>	90%	49472	90%	**91	94%
[IMR 4350]*	<<locked>>	96%	49110	89%	**23	93%
[IMR 4451 Enduron]*	<<locked>>	91%	48863	88%	**07	94%
IMR 4831	<<locked>>	97%	41945	76%	**25	95%
IMR 4895	<<locked>>	86%	48834	88%	**89	98%
Lovex D073.6	<<locked>>	84%	48936	89%	**53	100%
Lovex S060	<<locked>>	84%	49676	90%	**04	98%
Lovex S062	<<locked>>	87%	48965	89%	**33	99%
Lovex S065	<<locked>>	94%	49516	90%	**30	96%
[Lovex S070]*	<<locked>>	96%	49647	90%	**50	94%
Norma 201	<<locked>>	84%	48950	89%	**33	99%
Norma 202	<<locked>>	84%	49095	89%	**40	100%
Norma 203B	<<locked>>	87%	48979	89%	**83	98%
Norma URP	<<locked>>	97%	49501	90%	**15	97%
Ramshot Big Game	<<locked>>	87%	48747	88%	**83	98%
Ramshot Hunter	<<locked>>	97%	48602	88%	**92	95%
ReloadSwiss RS 14	<<locked>>	96%	33475	61%	**18	100%
ReloadSwiss RS 50	<<locked>>	88%	49269	89%	**20	95%
ReloadSwiss RS 52 👍	<<locked>>	88%	48805	88%	**09	99%
ReloadSwiss RS 60 👍	<<locked>>	94%	49371	89%	**94	100%
ReloadSwiss RS 62	<<locked>>	97%	49356	89%	**28	97%
ReloadSwiss RS 70	<<locked>>	97%	49458	90%	**48	96%
Rottweil R 902	<<locked>>	86%	49313	89%	**30	99%
Rottweil R 903 👍	<<locked>>	91%	49153	89%	**73	99%
[Rottweil R 907]*	<<locked>>	93%	48921	89%	**10	93%
SNPE Vectan SP 11	<<locked>>	90%	49153	89%	**02	98%
SNPE Vectan SP 7	<<locked>>	83%	49516	90%	**33	96%
SNPE Vectan SP 9	<<locked>>	85%	48950	89%	**53	98%
SNPE Vectan Tubal 3000	<<locked>>	84%	48994	89%	**64	100%
SNPE Vectan Tubal 5000	<<locked>>	90%	49617	90%	**58	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	94%	49168	89%	**58	94%
Shooters World Long Rifle	<<locked>>	94%	49516	90%	**30	96%
Shooters World Match Rifle	<<locked>>	84%	48936	89%	**53	100%
Shooters World Precision	<<locked>>	87%	48965	89%	**33	99%
Somchem S335	<<locked>>	84%	48994	89%	**58	100%
Somchem S341	<<locked>>	84%	49284	89%	**40	98%
Somchem S355 👍	<<locked>>	91%	49371	89%	**60	99%
Somchem S365	<<locked>>	96%	43323	78%	**27	99%
Vihtavuori N133	<<locked>>	86%	49458	90%	**55	100%
Vihtavuori N135	<<locked>>	92%	49182	89%	**10	100%
Vihtavuori N140	<<locked>>	87%	49719	90%	**20	100%
Vihtavuori N150	<<locked>>	96%	49153	89%	**20	99%
Vihtavuori N160	<<locked>>	94%	49313	89%	**69	97%
Vihtavuori N540	<<locked>>	87%	49313	89%	**37	100%
Vihtavuori N550	<<locked>>	94%	48994	89%	**02	97%
[Vihtavuori N555]*	<<locked>>	97%	36811	67%	**53	94%
Winchester 6.5 StaBALL	<<locked>>	95%	48776	88%	**17	99%
[Winchester 760]*	<<locked>>	92%	49298	89%	**02	94%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	44788	81%	**71	97%
[ADI AR 2208]*	<<locked>>	81%	38101	69%	**77	94%
[Accurate 2700]*	<<locked>>	85%	42061	76%	**00	90%
Accurate 4064	<<locked>>	81%	38740	70%	**27	99%
[Accurate 4350]*	<<locked>>	84%	31415	57%	**66	90%
Alliant Reloder- TS 15.5	<<locked>>	81%	37478	68%	**04	96%
Alliant Reloder-15	<<locked>>	81%	40466	73%	**82	95%
[Alliant Reloder-16]*	<<locked>>	84%	32561	59%	**92	90%
[Alliant Reloder-17]*	<<locked>>	81%	32706	59%	**25	93%
[Alliant Reloder-23]*	<<locked>>	92%	29211	53%	**94	90%
[Alliant Reloder-26]*	<<locked>>	95%	35288	64%	**30	90%
Baschieri & Pellagri 107	<<locked>>	81%	44483	80%	**61	96%
[Hodgdon CFE223]*	<<locked>>	81%	38827	70%	**59	94%
[Hodgdon H380]*	<<locked>>	81%	38392	69%	**10	93%
[Hodgdon H414]*	<<locked>>	85%	38928	70%	**63	90%
[Hodgdon H4350]*	<<locked>>	93%	41321	75%	**53	90%
[Hodgdon Hybrid 100V]*	<<locked>>	82%	27789	50%	**12	90%
[Hodgdon LVR]*	<<locked>>	83%	33518	61%	**05	90%
[Hodgdon Superperformance]*	<<locked>>	90%	41655	75%	**25	90%
[Hodgdon VARGET]*	<<locked>>	81%	37855	69%	**74	94%
Hodgdon TrailBoss	<<locked>>	81%	26658	48%	**05	100%
IMR 3031	<<locked>>	81%	41017	74%	**19	100%
[IMR 4064]*	<<locked>>	81%	37246	67%	**48	94%
[IMR 4166 Enduron]*	<<locked>>	82%	38667	70%	**48	90%
[IMR 4350]*	<<locked>>	91%	40741	74%	**33	90%
[IMR 4451 Enduron]*	<<locked>>	84%	39102	71%	**77	90%
[IMR 4831]*	<<locked>>	88%	30835	56%	**30	90%
IMR 4895	<<locked>>	81%	41365	75%	**12	96%
Lovex D073.6	<<locked>>	81%	43961	80%	**48	99%
Lovex S060	<<locked>>	81%	44802	81%	**99	97%
Lovex S062	<<locked>>	81%	39537	72%	**30	97%
[Lovex S065]*	<<locked>>	83%	34882	63%	**69	90%
[Lovex S070]*	<<locked>>	87%	37956	69%	**77	90%
Norma 201	<<locked>>	81%	44048	80%	**25	98%
Norma 202	<<locked>>	81%	44135	80%	**28	100%
Norma 203B	<<locked>>	81%	39711	72%	**63	96%
[Norma URP]*	<<locked>>	84%	32111	58%	**72	90%
Ramshot Big Game	<<locked>>	81%	39479	71%	**66	95%
[Ramshot Hunter]*	<<locked>>	89%	36941	67%	**00	90%
ReloadSwiss RS 14	<<locked>>	81%	26701	48%	**44	100%
[ReloadSwiss RS 50]*	<<locked>>	81%	38551	70%	**74	91%
ReloadSwiss RS 52	<<locked>>	81%	38334	69%	**66	97%
[ReloadSwiss RS 60]*	<<locked>>	81%	31850	58%	**09	93%
[ReloadSwiss RS 62]*	<<locked>>	85%	32648	59%	**15	90%
[ReloadSwiss RS 70]*	<<locked>>	88%	36129	65%	**94	90%
Rottweil R 902	<<locked>>	81%	41626	75%	**53	98%
Rottweil R 903	<<locked>>	81%	34751	63%	**22	95%
[Rottweil R 907]*	<<locked>>	87%	40669	74%	**17	90%
[SNPE Vectan SP 11]*	<<locked>>	81%	35897	65%	**81	94%
SNPE Vectan SP 7	<<locked>>	81%	45368	82%	**48	95%
SNPE Vectan SP 9	<<locked>>	81%	43294	78%	**19	97%
SNPE Vectan Tubal 3000	<<locked>>	81%	45107	82%	**76	100%
SNPE Vectan Tubal 5000	<<locked>>	81%	37275	67%	**99	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	86%	37768	68%	**12	90%
[Shooters World Long Rifle]*	<<locked>>	83%	34882	63%	**69	90%
Shooters World Match Rifle	<<locked>>	81%	43961	80%	**48	99%
Shooters World Precision	<<locked>>	81%	39537	72%	**30	97%
Somchem S335	<<locked>>	81%	45107	82%	**86	100%
Somchem S341	<<locked>>	81%	45397	82%	**58	97%
Somchem S355	<<locked>>	81%	35926	65%	**45	95%
[Somchem S365]*	<<locked>>	81%	25918	47%	**85	90%
Vihtavuori N133	<<locked>>	81%	42656	77%	**23	100%
Vihtavuori N135	<<locked>>	81%	34360	62%	**89	99%
Vihtavuori N140	<<locked>>	81%	41031	74%	**43	100%
[Vihtavuori N150]*	<<locked>>	81%	30443	55%	**67	94%
[Vihtavuori N160]*	<<locked>>	81%	32053	58%	**30	90%
Vihtavuori N540	<<locked>>	81%	40944	74%	**59	99%
[Vihtavuori N550]*	<<locked>>	82%	32735	59%	**89	91%
[Vihtavuori N555]*	<<locked>>	91%	30095	54%	**53	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	30763	56%	**61	92%
[Winchester 760]*	<<locked>>	85%	38928	70%	**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.

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