Load data for 5.7 x 28 + .223 | 55gr | SUS-TAC Penmax (HPT)

Recommended Powder(s): ADI AP 100, Alliant POWER PISTOL, Rottweil P 806, Somchem S221, Vihtavuori N105

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.223 \| 55gr \| SUS-TAC Penmax (HPT)
Manufacturer SKU:	H12852
Bullet Weight:	55gr \| 3.6g
Bullet Diameter:	0.223" \| 5.66mm
Bullet Length:	0.865" \| 22.0mm
Caliber:	5.7 x 28 load data
Case Length (l3):	1.134" \| 28.8mm
Cartridge Length (C.O.L.):	1.570" \| 39.9mm
Seated Depth:	0.429" \| 10.9mm
Shank Seated Depth:	0.290" \| 7.4mm
Case Capacity:	12.3 Grains of Water \| 0.80 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	50038 psi \| 3450 bar
LID:	LID_B10303_C925
Last updated:	2025-02-02
Recommended Twist Rate:	1:8 - 1:7

Load data for 116 loads in caliber 5.7 x 28 with .223 | 55gr | SUS-TAC Penmax (HPT) bullet and 58 powders such as ADI AP 100, Alliant POWER PISTOL, Rottweil P 806, Somchem S221, Vihtavuori N105. 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.

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 AP 100 👍	<<locked>>	96%	44295	89%	**21	100%
ADI AP 70N	<<locked>>	65%	41843	84%	**40	100%
ADI AS 30	<<locked>>	78%	43018	86%	**45	100%
ADI AS 50N	<<locked>>	73%	42598	85%	**85	100%
[Accurate 4100]*	<<locked>>	96%	43526	87%	**67	85%
Accurate No. 2	<<locked>>	73%	42308	85%	**76	100%
Accurate No. 7	<<locked>>	73%	42815	86%	**57	96%
Accurate No. 9	<<locked>>	82%	43134	86%	**57	91%
Accurate Solo 1000	<<locked>>	76%	42279	84%	**71	100%
Accurate Solo 1250	<<locked>>	81%	43729	87%	**40	100%
Accurate TCM	<<locked>>	82%	43497	87%	**67	93%
[Alliant 2400]*	<<locked>>	93%	44266	88%	**96	89%
Alliant BULLSEYE	<<locked>>	70%	42264	84%	**12	100%
Alliant POWER PISTOL 👍	<<locked>>	79%	43801	88%	**50	100%
Alliant UNIQUE	<<locked>>	78%	42047	84%	**06	100%
Baschieri & Pellagri 100	<<locked>>	78%	44048	88%	**88	100%
Hodgdon Clays	<<locked>>	76%	42714	85%	**86	100%
Hodgdon HS-6	<<locked>>	65%	43859	88%	**75	100%
[Hodgdon LilGun]*	<<locked>>	97%	33953	68%	**11	84%
Hodgdon Longshot	<<locked>>	62%	43627	87%	**62	100%
Hodgdon Universal	<<locked>>	72%	41843	84%	**40	100%
Hodgdon TrailBoss	<<locked>>	96%	19754	39%	**10	100%
Lovex D037.1	<<locked>>	73%	42815	86%	**57	96%
Lovex D037.2	<<locked>>	81%	43134	86%	**57	91%
Lovex S011	<<locked>>	65%	41945	84%	**01	100%
Lovex S020	<<locked>>	72%	43801	88%	**73	100%
Maxam CSB 1	<<locked>>	85%	44701	89%	**47	100%
Maxam CSB 2	<<locked>>	79%	44164	88%	**34	100%
Maxam CSB 3	<<locked>>	80%	44498	89%	**24	100%
Maxam CSB 4	<<locked>>	78%	44701	89%	**07	100%
Maxam CSB 5	<<locked>>	74%	44019	88%	**45	100%
Ramshot Enforcer	<<locked>>	93%	43526	87%	**03	90%
Ramshot Silhouette	<<locked>>	67%	45020	90%	**45	100%
ReloadSwiss RS 12	<<locked>>	69%	44193	88%	**21	100%
ReloadSwiss RS 14	<<locked>>	94%	18275	37%	**17	100%
ReloadSwiss RS 20	<<locked>>	81%	44208	88%	**22	100%
ReloadSwiss RS 24	<<locked>>	81%	43859	88%	**63	98%
Rottweil P 801	<<locked>>	66%	44860	90%	**91	100%
Rottweil P 806 👍	<<locked>>	83%	43323	87%	**50	100%
SNPE Vectan A0	<<locked>>	85%	44846	90%	**96	100%
SNPE Vectan BA 9	<<locked>>	76%	42888	86%	**44	100%
SNPE Vectan BA10	<<locked>>	72%	41887	84%	**99	100%
SNPE Vectan BA7 1/2	<<locked>>	88%	44005	88%	**52	100%
SNPE Vectan BA9 1/2	<<locked>>	78%	44614	89%	**60	100%
Shooters World Heavy Pistol	<<locked>>	81%	43134	86%	**57	91%
Shooters World Major Pistol	<<locked>>	73%	42815	86%	**57	96%
Somchem MP200	<<locked>>	74%	44092	88%	**22	100%
Somchem MS200	<<locked>>	77%	41989	84%	**76	100%
Somchem S221 👍	<<locked>>	68%	43381	87%	**24	99%
Vihtavuori 3N37	<<locked>>	81%	44817	90%	**85	100%
Vihtavuori 3N38	<<locked>>	91%	43961	88%	**40	98%
Vihtavuori N105 👍	<<locked>>	95%	41597	83%	**54	100%
Vihtavuori N320	<<locked>>	72%	42003	84%	**75	100%
Vihtavuori N32C Tin Star	<<locked>>	97%	40741	81%	**83	100%
Vihtavuori N330	<<locked>>	74%	43294	87%	**50	100%
Vihtavuori N340	<<locked>>	79%	44251	88%	**03	100%
Vihtavuori N350	<<locked>>	83%	43453	87%	**68	100%
Winchester 231	<<locked>>	64%	43134	86%	**27	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	18492	37%	**55	92%
ADI AP 70N	<<locked>>	62%	38769	77%	**94	100%
ADI AS 30	<<locked>>	62%	30647	61%	**88	100%
ADI AS 50N	<<locked>>	62%	33083	66%	**66	100%
[Accurate 4100]*	<<locked>>	88%	34011	68%	**32	80%
Accurate No. 2	<<locked>>	61%	29472	59%	**02	100%
Accurate No. 7	<<locked>>	62%	28993	58%	**34	90%
[Accurate No. 9]*	<<locked>>	65%	24221	48%	**25	80%
Accurate Solo 1000	<<locked>>	62%	30168	60%	**17	100%
Accurate Solo 1250	<<locked>>	61%	26208	52%	**14	100%
[Accurate TCM]*	<<locked>>	62%	22843	46%	**89	81%
[Alliant 2400]*	<<locked>>	79%	28805	58%	**47	81%
Alliant BULLSEYE	<<locked>>	61%	33083	66%	**85	100%
Alliant POWER PISTOL	<<locked>>	61%	26353	53%	**68	96%
Alliant UNIQUE	<<locked>>	63%	28311	57%	**16	100%
Baschieri & Pellagri 100	<<locked>>	61%	28790	58%	**98	100%
[Hodgdon Clays]²	<<locked>>	59%	29646	59%	**22	100%
Hodgdon HS-6	<<locked>>	61%	38247	76%	**03	100%
[Hodgdon LilGun]*	<<locked>>	93%	30139	60%	**42	81%
Hodgdon Longshot	<<locked>>	60%	40712	81%	**32	100%
Hodgdon Universal	<<locked>>	60%	30443	61%	**80	100%
Hodgdon TrailBoss	<<locked>>	60%	10472	21%	**4	100%
Lovex D037.1	<<locked>>	62%	28993	58%	**34	90%
[Lovex D037.2]*	<<locked>>	64%	24221	48%	**25	80%
Lovex S011	<<locked>>	62%	38696	77%	**62	100%
Lovex S020	<<locked>>	61%	31633	63%	**22	100%
Maxam CSB 1	<<locked>>	61%	25251	50%	**94	100%
Maxam CSB 2	<<locked>>	60%	26992	54%	**14	100%
[Maxam CSB 3]²	<<locked>>	59%	26847	54%	**94	100%
Maxam CSB 4	<<locked>>	61%	29457	59%	**14	100%
[Maxam CSB 5]²	<<locked>>	59%	31053	62%	**88	100%
[Ramshot Enforcer]*	<<locked>>	77%	26455	53%	**11	80%
Ramshot Silhouette	<<locked>>	60%	36376	73%	**37	100%
ReloadSwiss RS 12	<<locked>>	60%	35186	70%	**12	100%
[ReloadSwiss RS 14]²	<<locked>>	59%	9906	20%	**7	100%
ReloadSwiss RS 20	<<locked>>	60%	25063	50%	**60	100%
ReloadSwiss RS 24	<<locked>>	61%	23917	48%	**19	90%
Rottweil P 801	<<locked>>	60%	38551	77%	**22	100%
Rottweil P 806	<<locked>>	60%	21596	43%	**83	98%
SNPE Vectan A0	<<locked>>	60%	23931	48%	**07	100%
SNPE Vectan BA 9	<<locked>>	61%	29457	59%	**66	100%
SNPE Vectan BA10	<<locked>>	61%	32721	65%	**84	100%
SNPE Vectan BA7 1/2	<<locked>>	60%	21567	43%	**01	98%
SNPE Vectan BA9 1/2	<<locked>>	62%	30284	61%	**80	100%
[Shooters World Heavy Pistol]*	<<locked>>	64%	24221	48%	**25	80%
Shooters World Major Pistol	<<locked>>	62%	28993	58%	**34	90%
Somchem MP200	<<locked>>	60%	30037	60%	**35	100%
Somchem MS200	<<locked>>	62%	28398	57%	**89	100%
Somchem S221	<<locked>>	62%	35868	72%	**16	98%
Vihtavuori 3N37	<<locked>>	60%	24743	49%	**86	100%
[Vihtavuori 3N38]*	<<locked>>	62%	19261	38%	**91	86%
[Vihtavuori N105]*	<<locked>>	62%	15563	31%	**38	87%
Vihtavuori N320	<<locked>>	62%	32169	64%	**57	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	19377	39%	**8	100%
Vihtavuori N330	<<locked>>	62%	30821	62%	**96	100%
Vihtavuori N340	<<locked>>	61%	27064	54%	**73	100%
Vihtavuori N350	<<locked>>	61%	23453	47%	**60	100%
Winchester 231	<<locked>>	61%	40001	80%	**94	100%

Start Load - Barrel Length: 5.50''

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.