Load data for .223 Rem. (5.56 x 45 NATO) + .224 | 55gr | Sierra SP Blitz

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.224 \| 55gr \| Sierra SP Blitz
Manufacturer SKU:	1345
Bullet Weight:	55gr \| 3.6g
Bullet Diameter:	0.224" \| 5.69mm
Bullet Length:	<<locked>>
Caliber:	.223 Rem. (5.56 x 45 NATO) load data
Case Length (l3):	1.759" \| 44.7mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	28.8 Grains of Water \| 1.87 cm³
Primer Size:	Small Rifle (SR)
Max. allowed Pressure:	62366 psi \| 4300 bar
LID:	LID_B5744_C134
Last updated:	2026-02-10

Load data for 106 loads in caliber .223 Rem. (5.56 x 45 NATO) with .224 | 55gr | Sierra SP Blitz bullet and 53 powder(s). 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 2207	<<locked>>	95%	55782	89%	**92	100%
ADI AR 2219 👍	<<locked>>	97%	55027	88%	**38	99%
Accurate 1680	<<locked>>	86%	55927	90%	**66	99%
Accurate 2015	<<locked>>	97%	44947	72%	**25	99%
[Accurate 2230]*	<<locked>>	97%	49516	79%	**71	93%
Accurate 2460	<<locked>>	97%	48298	77%	**77	95%
Accurate 2495	<<locked>>	96%	35433	57%	**27	96%
[Accurate 2520]*	<<locked>>	97%	39160	63%	**56	93%
Alliant AR-Comp	<<locked>>	97%	39711	64%	**09	99%
Alliant Reloder-10x 👍	<<locked>>	97%	49211	79%	**33	100%
Alliant Reloder-7 👍	<<locked>>	93%	54781	88%	**56	100%
Baschieri & Pellagri 106	<<locked>>	97%	55230	89%	**07	99%
[Hodgdon Benchmark]*	<<locked>>	96%	45614	73%	**86	94%
Hodgdon CFE BLK	<<locked>>	93%	56057	90%	**14	95%
Hodgdon H322	<<locked>>	97%	44657	72%	**54	97%
Hodgdon H335	<<locked>>	97%	54766	88%	**22	98%
Hodgdon H4198	<<locked>>	95%	55666	89%	**33	98%
Hodgdon TrailBoss	<<locked>>	96%	29820	48%	**09	100%
[IMR 3031]*	<<locked>>	97%	34171	55%	**71	94%
IMR 4198 👍	<<locked>>	97%	51300	82%	**20	100%
IMR 4227	<<locked>>	88%	54984	88%	**10	100%
[IMR 8208 XBR]*	<<locked>>	97%	42815	69%	**69	92%
Lovex D060	<<locked>>	83%	55912	90%	**79	100%
Lovex D073.4	<<locked>>	97%	51866	83%	**23	95%
Lovex D073.5	<<locked>>	97%	48298	77%	**77	95%
[Lovex D073.6]*	<<locked>>	96%	35868	58%	**81	92%
Lovex S053	<<locked>>	90%	54897	88%	**84	100%
Norma 200 👍	<<locked>>	96%	56101	90%	**19	100%
[Norma 202]*	<<locked>>	97%	38159	61%	**13	94%
[Ramshot X-Terminator]*	<<locked>>	97%	48109	77%	**31	91%
ReloadSwiss RS 14	<<locked>>	96%	29660	48%	**52	100%
ReloadSwiss RS 36	<<locked>>	89%	56043	90%	**59	100%
ReloadSwiss RS 40	<<locked>>	97%	49313	79%	**04	96%
Rottweil R 901	<<locked>>	97%	42351	68%	**66	95%
SNPE Vectan BA6 1/2	<<locked>>	94%	56101	90%	**23	100%
SNPE Vectan SP 10	<<locked>>	97%	55042	88%	**28	98%
SNPE Vectan Tubal 3000	<<locked>>	96%	41655	67%	**84	95%
[SNPE Vectan Tubal 5000]*	<<locked>>	96%	33533	54%	**13	93%
Shooters World Buffalo Rifle	<<locked>>	83%	55912	90%	**79	100%
[Shooters World Match Rifle]*	<<locked>>	96%	35868	58%	**81	92%
[Shooters World Tactical Rifle]*	<<locked>>	97%	54679	88%	**27	94%
[Somchem S321]*	<<locked>>	97%	46122	74%	**58	93%
Somchem S335	<<locked>>	96%	40030	64%	**84	95%
Vihtavuori N110	<<locked>>	84%	55114	88%	**09	100%
Vihtavuori N120	<<locked>>	96%	54259	87%	**14	100%
Vihtavuori N130	<<locked>>	97%	46717	75%	**12	99%
Vihtavuori N133	<<locked>>	97%	38276	61%	**54	97%
[Vihtavuori N135]*	<<locked>>	96%	27847	45%	**48	92%
[Vihtavuori N140]*	<<locked>>	97%	36100	58%	**35	93%
[Vihtavuori N530]*	<<locked>>	97%	45527	73%	**48	93%
[Vihtavuori N540]*	<<locked>>	96%	35592	57%	**41	92%
[Winchester 748]*	<<locked>>	97%	44904	72%	**68	93%
[Winchester StaBALL Match]*	<<locked>>	97%	49632	80%	**23	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2207	<<locked>>	81%	36289	58%	**54	100%
[ADI AR 2219]*	<<locked>>	81%	31937	51%	**49	92%
Accurate 1680	<<locked>>	81%	47181	76%	**18	98%
[Accurate 2015]*	<<locked>>	81%	27282	44%	**05	93%
[Accurate 2230]*	<<locked>>	92%	41466	66%	**20	90%
[Accurate 2460]*	<<locked>>	88%	35027	56%	**05	90%
[Accurate 2495]*	<<locked>>	85%	23525	38%	**79	90%
[Accurate 2520]*	<<locked>>	92%	32996	53%	**05	90%
[Alliant AR-Comp]*	<<locked>>	81%	24149	39%	**52	93%
Alliant Reloder-10x	<<locked>>	81%	30008	48%	**03	95%
Alliant Reloder-7	<<locked>>	81%	37826	61%	**41	98%
[Baschieri & Pellagri 106]*	<<locked>>	81%	33330	53%	**87	94%
[Hodgdon Benchmark]*	<<locked>>	89%	36622	59%	**92	90%
[Hodgdon CFE BLK]*	<<locked>>	82%	38522	62%	**89	90%
[Hodgdon H322]*	<<locked>>	83%	28863	46%	**54	90%
[Hodgdon H335]*	<<locked>>	81%	31488	50%	**36	90%
[Hodgdon H4198]*	<<locked>>	81%	35955	58%	**49	93%
Hodgdon TrailBoss	<<locked>>	81%	23511	38%	**55	100%
[IMR 3031]*	<<locked>>	89%	27383	44%	**57	90%
IMR 4198	<<locked>>	81%	32430	52%	**26	97%
IMR 4227	<<locked>>	81%	43598	70%	**23	100%
[IMR 8208 XBR]*	<<locked>>	94%	38725	62%	**84	90%
Lovex D060	<<locked>>	81%	52721	85%	**27	100%
[Lovex D073.4]*	<<locked>>	87%	35839	57%	**15	90%
[Lovex D073.5]*	<<locked>>	88%	35027	56%	**05	90%
[Lovex D073.6]*	<<locked>>	94%	32996	53%	**05	90%
Lovex S053	<<locked>>	81%	42844	69%	**84	100%
Norma 200	<<locked>>	81%	33750	54%	**89	97%
[Norma 202]*	<<locked>>	90%	30922	50%	**33	90%
[Ramshot X-Terminator]*	<<locked>>	94%	44657	72%	**59	90%
ReloadSwiss RS 14	<<locked>>	82%	23496	38%	**98	100%
ReloadSwiss RS 36	<<locked>>	81%	43787	70%	**59	100%
[ReloadSwiss RS 40]*	<<locked>>	86%	33953	54%	**72	90%
[Rottweil R 901]*	<<locked>>	87%	31024	50%	**94	90%
SNPE Vectan BA6 1/2	<<locked>>	81%	39334	63%	**77	100%
[SNPE Vectan SP 10]*	<<locked>>	81%	32416	52%	**56	91%
[SNPE Vectan Tubal 3000]*	<<locked>>	87%	30777	49%	**31	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	91%	28442	46%	**66	90%
Shooters World Buffalo Rifle	<<locked>>	81%	52721	85%	**27	100%
[Shooters World Match Rifle]*	<<locked>>	94%	32996	53%	**05	90%
[Shooters World Tactical Rifle]*	<<locked>>	89%	40393	65%	**67	90%
[Somchem S321]*	<<locked>>	91%	37391	60%	**77	90%
[Somchem S335]*	<<locked>>	85%	27920	45%	**75	90%
Vihtavuori N110	<<locked>>	81%	50546	81%	**49	100%
Vihtavuori N120	<<locked>>	81%	33794	54%	**56	100%
[Vihtavuori N130]*	<<locked>>	81%	28732	46%	**08	94%
[Vihtavuori N133]*	<<locked>>	82%	24801	40%	**77	90%
[Vihtavuori N135]*	<<locked>>	94%	25614	41%	**72	90%
[Vihtavuori N140]*	<<locked>>	91%	30153	48%	**71	90%
[Vihtavuori N530]*	<<locked>>	92%	38406	62%	**90	90%
[Vihtavuori N540]*	<<locked>>	93%	31575	51%	**33	90%
[Winchester 748]*	<<locked>>	91%	36811	59%	**81	90%
[Winchester StaBALL Match]*	<<locked>>	92%	42119	68%	**79	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