Load data for .243 Ackley Improved + .243 | 75gr | Peregrine VLR-4

Recommended Powder(s): Alliant Reloder- TS 15.5, Alliant Reloder-17, ReloadSwiss RS 60, Rottweil R 903, Somchem S355

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.243 \| 75gr \| Peregrine VLR-4
Bullet Weight:	75gr \| 4.9g
Bullet Diameter:	0.243" \| 6.17mm
Bullet Length:	1.076" \| 27.3mm
Caliber:	.243 Ackley Improved load data
Case Length (l3):	2.045" \| 51.9mm
Cartridge Length (C.O.L.):	2.458" \| 62.4mm
Seated Depth:	0.663" \| 16.8mm
Shank Seated Depth:	0.474" \| 12.0mm
Case Capacity:	57.0 Grains of Water \| 3.70 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	55259 psi \| 3810 bar
LID:	LID_B8024_C1011
Last updated:	2025-01-01
Recommended Twist Rate:	1:9 - 1:7

Load data for 150 loads in caliber .243 Ackley Improved with .243 | 75gr | Peregrine VLR-4 bullet and 75 powders such as Alliant Reloder- TS 15.5, Alliant Reloder-17, 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)
Muzzle velocity vs. barrel length
Every 1 inch additional barrel length increases muzzle velocity by approx. 38.1 fps
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%	49240	89%	**68	99%
ADI AR 2208	<<locked>>	89%	48849	88%	**35	98%
Accurate 2495	<<locked>>	84%	49501	90%	**41	100%
[Accurate 2700]*	<<locked>>	90%	49110	89%	**50	93%
Accurate 4064	<<locked>>	89%	48805	88%	**48	100%
Accurate 4350	<<locked>>	96%	47921	87%	**81	97%
Alliant AR-Comp	<<locked>>	83%	49356	89%	**28	100%
Alliant Reloder- TS 15.5 👍	<<locked>>	90%	49269	89%	**74	99%
Alliant Reloder-15	<<locked>>	88%	49632	90%	**84	98%
Alliant Reloder-16	<<locked>>	97%	47572	86%	**14	97%
Alliant Reloder-17 👍	<<locked>>	93%	48718	88%	**60	99%
[Alliant Reloder-23]*	<<locked>>	97%	33823	61%	**69	94%
[Alliant Reloder-26]*	<<locked>>	97%	37043	67%	**07	92%
Baschieri & Pellagri 107	<<locked>>	85%	49342	89%	**78	98%
Hodgdon CFE223	<<locked>>	88%	48791	88%	**97	97%
Hodgdon H380	<<locked>>	89%	48863	88%	**58	97%
[Hodgdon H414]*	<<locked>>	92%	49327	89%	**07	94%
[Hodgdon H4350]*	<<locked>>	97%	46122	83%	**73	93%
Hodgdon Hybrid 100V	<<locked>>	97%	43859	79%	**73	98%
Hodgdon LVR	<<locked>>	95%	49647	90%	**07	97%
[Hodgdon Superperformance]*	<<locked>>	95%	49400	89%	**17	94%
Hodgdon VARGET	<<locked>>	90%	49458	89%	**45	98%
Hodgdon TrailBoss	<<locked>>	95%	32764	59%	**67	100%
IMR 3031	<<locked>>	87%	49284	89%	**74	100%
IMR 4064	<<locked>>	90%	49037	89%	**25	98%
[IMR 4166 Enduron]*	<<locked>>	91%	49705	90%	**99	94%
[IMR 4350]*	<<locked>>	97%	48428	88%	**12	93%
[IMR 4451 Enduron]*	<<locked>>	92%	49052	89%	**09	94%
IMR 4831	<<locked>>	97%	40625	74%	**04	95%
IMR 4895	<<locked>>	87%	49632	90%	**04	99%
IMR 8208 XBR	<<locked>>	83%	49501	90%	**32	99%
Lovex D073.6	<<locked>>	85%	49037	89%	**48	100%
Lovex S060	<<locked>>	85%	49690	90%	**05	99%
Lovex S062	<<locked>>	88%	49037	89%	**35	99%
Lovex S065	<<locked>>	94%	48704	88%	**19	96%
Lovex S070	<<locked>>	96%	49429	89%	**45	95%
Norma 201	<<locked>>	85%	49429	89%	**35	99%
Norma 202	<<locked>>	85%	49545	90%	**38	100%
Norma 203B	<<locked>>	88%	48820	88%	**71	98%
[Norma 204]*	<<locked>>	97%	49037	89%	**64	92%
Norma URP	<<locked>>	97%	48109	87%	**91	97%
Ramshot Big Game	<<locked>>	88%	49647	90%	**04	98%
Ramshot Hunter	<<locked>>	97%	47021	85%	**71	95%
ReloadSwiss RS 14	<<locked>>	96%	33765	61%	**29	100%
ReloadSwiss RS 50	<<locked>>	89%	49501	90%	**28	95%
ReloadSwiss RS 52	<<locked>>	88%	48834	88%	**10	100%
ReloadSwiss RS 60 👍	<<locked>>	95%	49574	90%	**92	100%
ReloadSwiss RS 62	<<locked>>	97%	47892	87%	**04	97%
ReloadSwiss RS 70	<<locked>>	97%	48820	88%	**40	96%
Rottweil R 902	<<locked>>	87%	49356	89%	**25	99%
Rottweil R 903 👍	<<locked>>	92%	49734	90%	**74	99%
[Rottweil R 907]*	<<locked>>	93%	49705	90%	**28	94%
SNPE Vectan SP 11	<<locked>>	91%	49487	90%	**01	98%
SNPE Vectan SP 7	<<locked>>	84%	48849	88%	**19	97%
SNPE Vectan SP 9	<<locked>>	85%	48791	88%	**41	98%
SNPE Vectan Tubal 3000	<<locked>>	84%	48965	89%	**46	100%
SNPE Vectan Tubal 5000	<<locked>>	90%	49661	90%	**53	100%
SNPE Vectan Tubal 7000	<<locked>>	95%	49603	90%	**76	95%
Shooters World Long Rifle	<<locked>>	94%	48704	88%	**19	96%
Shooters World Match Rifle	<<locked>>	85%	49037	89%	**48	100%
Shooters World Precision	<<locked>>	88%	49037	89%	**35	99%
Somchem S335	<<locked>>	84%	49342	89%	**66	100%
Somchem S341	<<locked>>	84%	49110	89%	**32	98%
Somchem S355 👍	<<locked>>	91%	49269	89%	**64	99%
Somchem S365	<<locked>>	97%	42772	77%	**19	99%
Vihtavuori N133	<<locked>>	86%	49240	89%	**46	100%
Vihtavuori N135	<<locked>>	92%	48544	88%	**92	100%
Vihtavuori N140	<<locked>>	87%	49313	89%	**12	100%
Vihtavuori N150	<<locked>>	96%	48747	88%	**12	100%
Vihtavuori N160	<<locked>>	95%	49705	90%	**74	97%
Vihtavuori N540	<<locked>>	87%	49182	89%	**25	100%
Vihtavuori N550	<<locked>>	94%	48834	88%	**97	97%
[Vihtavuori N555]*	<<locked>>	97%	36027	65%	**54	94%
Winchester 6.5 StaBALL	<<locked>>	95%	48805	88%	**22	99%
[Winchester 760]*	<<locked>>	92%	49327	89%	**07	94%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	44237	80%	**59	98%
ADI AR 2208	<<locked>>	81%	37521	68%	**66	95%
Accurate 2495	<<locked>>	81%	45092	82%	**69	100%
[Accurate 2700]*	<<locked>>	84%	40234	73%	**56	90%
Accurate 4064	<<locked>>	81%	37971	69%	**12	99%
[Accurate 4350]*	<<locked>>	84%	30269	55%	**44	90%
Alliant AR-Comp	<<locked>>	81%	46050	83%	**69	100%
Alliant Reloder- TS 15.5	<<locked>>	81%	36825	67%	**89	96%
Alliant Reloder-15	<<locked>>	81%	39668	72%	**68	96%
[Alliant Reloder-16]*	<<locked>>	84%	31372	57%	**64	90%
[Alliant Reloder-17]*	<<locked>>	81%	31952	58%	**20	93%
[Alliant Reloder-23]*	<<locked>>	91%	28355	51%	**82	90%
[Alliant Reloder-26]*	<<locked>>	94%	33794	61%	**02	90%
Baschieri & Pellagri 107	<<locked>>	81%	43366	78%	**46	96%
[Hodgdon CFE223]*	<<locked>>	81%	38406	70%	**64	94%
[Hodgdon H380]*	<<locked>>	81%	37260	67%	**89	93%
[Hodgdon H414]*	<<locked>>	85%	38551	70%	**61	90%
[Hodgdon H4350]*	<<locked>>	93%	40364	73%	**35	90%
[Hodgdon Hybrid 100V]*	<<locked>>	82%	27209	49%	**00	90%
[Hodgdon LVR]*	<<locked>>	83%	33127	60%	**10	91%
[Hodgdon Superperformance]*	<<locked>>	89%	40350	73%	**07	90%
[Hodgdon VARGET]*	<<locked>>	81%	37014	67%	**63	94%
Hodgdon TrailBoss	<<locked>>	81%	26527	48%	**13	100%
IMR 3031	<<locked>>	81%	39972	72%	**97	100%
IMR 4064	<<locked>>	81%	36724	66%	**43	95%
[IMR 4166 Enduron]*	<<locked>>	82%	37608	68%	**20	90%
[IMR 4350]*	<<locked>>	91%	39871	72%	**18	90%
[IMR 4451 Enduron]*	<<locked>>	84%	37855	69%	**59	90%
[IMR 4831]*	<<locked>>	87%	30168	55%	**15	90%
IMR 4895	<<locked>>	81%	40553	73%	**97	97%
IMR 8208 XBR	<<locked>>	81%	46325	84%	**73	99%
Lovex D073.6	<<locked>>	81%	42873	78%	**23	99%
Lovex S060	<<locked>>	81%	44614	81%	**94	98%
Lovex S062	<<locked>>	81%	39233	71%	**25	98%
[Lovex S065]*	<<locked>>	82%	33692	61%	**54	90%
[Lovex S070]*	<<locked>>	87%	37086	67%	**63	90%
Norma 201	<<locked>>	81%	43163	78%	**04	98%
Norma 202	<<locked>>	81%	43424	79%	**14	100%
Norma 203B	<<locked>>	81%	39044	71%	**54	96%
[Norma 204]*	<<locked>>	94%	44889	81%	**66	90%
[Norma URP]*	<<locked>>	84%	31386	57%	**67	91%
Ramshot Big Game	<<locked>>	81%	38856	70%	**58	96%
[Ramshot Hunter]*	<<locked>>	89%	36260	66%	**92	90%
ReloadSwiss RS 14	<<locked>>	81%	26600	48%	**49	100%
[ReloadSwiss RS 50]*	<<locked>>	81%	38130	69%	**66	91%
ReloadSwiss RS 52	<<locked>>	81%	37782	68%	**68	98%
[ReloadSwiss RS 60]*	<<locked>>	81%	31241	57%	**97	93%
[ReloadSwiss RS 62]*	<<locked>>	85%	31879	58%	**97	90%
[ReloadSwiss RS 70]*	<<locked>>	87%	35157	64%	**79	90%
Rottweil R 902	<<locked>>	81%	41234	75%	**54	98%
Rottweil R 903	<<locked>>	81%	34301	62%	**17	95%
[Rottweil R 907]*	<<locked>>	87%	39784	72%	**99	90%
[SNPE Vectan SP 11]*	<<locked>>	81%	35404	64%	**72	94%
SNPE Vectan SP 7	<<locked>>	81%	44759	81%	**30	96%
SNPE Vectan SP 9	<<locked>>	81%	42757	77%	**17	97%
SNPE Vectan Tubal 3000	<<locked>>	81%	44657	81%	**71	100%
SNPE Vectan Tubal 5000	<<locked>>	81%	36985	67%	**00	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	86%	37565	68%	**17	90%
[Shooters World Long Rifle]*	<<locked>>	82%	33692	61%	**54	90%
Shooters World Match Rifle	<<locked>>	81%	42873	78%	**23	99%
Shooters World Precision	<<locked>>	81%	39233	71%	**25	98%
Somchem S335	<<locked>>	81%	44382	80%	**71	100%
Somchem S341	<<locked>>	81%	44106	80%	**23	97%
Somchem S355	<<locked>>	81%	35128	64%	**36	95%
[Somchem S365]*	<<locked>>	81%	25425	46%	**94	91%
Vihtavuori N133	<<locked>>	81%	42090	76%	**12	100%
Vihtavuori N135	<<locked>>	81%	34171	62%	**87	100%
Vihtavuori N140	<<locked>>	81%	40335	73%	**28	100%
Vihtavuori N150	<<locked>>	81%	30066	54%	**69	95%
[Vihtavuori N160]*	<<locked>>	81%	30893	56%	**08	90%
Vihtavuori N540	<<locked>>	81%	40379	73%	**54	99%
[Vihtavuori N550]*	<<locked>>	81%	31169	56%	**54	90%
[Vihtavuori N555]*	<<locked>>	90%	29298	53%	**48	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	29965	54%	**49	92%
[Winchester 760]*	<<locked>>	85%	38551	70%	**61	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.