Load data for .17 Rem. + .172 | 20gr | Lehigh Defense Controlled Chaos

Recommended Powder(s): ADI AR 2207, Alliant Reloder-10x, Alliant Reloder-7, IMR 4198, Norma 200

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.172 \| 20gr \| Lehigh Defense Controlled Chaos
Manufacturer SKU:	172020CuSP
Bullet Weight:	20gr \| 1.3g
Bullet Diameter:	0.172" \| 4.37mm
Bullet Length:	0.540" \| 13.7mm
Caliber:	.17 Rem. load data
Case Length (l3):	1.796" \| 45.6mm
Cartridge Length (C.O.L.):	2.118" \| 53.8mm
Seated Depth:	0.218" \| 5.5mm
Shank Seated Depth:	0.080" \| 2.0mm
Case Capacity:	26.5 Grains of Water \| 1.72 cm³
Primer Size:	Small Rifle (SR)
Max. allowed Pressure:	61641 psi \| 4250 bar
LID:	LID_B10995_C26
Last updated:	2025-11-08
Recommended Twist Rate:	1:9 - 1:8

Load data for 102 loads in caliber .17 Rem. with .172 | 20gr | Lehigh Defense Controlled Chaos bullet and 51 powders such as ADI AR 2207, Alliant Reloder-10x, Alliant Reloder-7, IMR 4198, Norma 200. 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.

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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>>	90%	54607	89%	**68	100%
ADI AR 2219	<<locked>>	92%	54375	88%	**98	98%
Accurate 2015	<<locked>>	96%	52620	85%	**09	99%
[Accurate 2230]*	<<locked>>	94%	54810	89%	**99	94%
Accurate 2460	<<locked>>	95%	54969	89%	**36	96%
Accurate 2495	<<locked>>	96%	44440	72%	**88	97%
Accurate 2520	<<locked>>	97%	48849	79%	**47	95%
[Accurate 4064]*	<<locked>>	96%	36550	59%	**42	92%
Alliant AR-Comp	<<locked>>	97%	46934	76%	**86	100%
Alliant Reloder-10x 👍	<<locked>>	95%	54766	89%	**01	100%
Alliant Reloder-7 👍	<<locked>>	89%	54723	89%	**32	100%
Baschieri & Pellagri 106	<<locked>>	92%	54810	89%	**31	99%
[Hodgdon BL-C2]*	<<locked>>	97%	49197	80%	**50	93%
[Hodgdon Benchmark]*	<<locked>>	96%	52562	85%	**44	94%
[Hodgdon CFE BLK]*	<<locked>>	88%	54259	88%	**37	94%
Hodgdon H322	<<locked>>	96%	52112	85%	**55	98%
Hodgdon H335	<<locked>>	92%	54346	88%	**65	97%
Hodgdon H4198	<<locked>>	91%	54491	88%	**06	98%
Hodgdon TrailBoss	<<locked>>	96%	30066	49%	**53	100%
IMR 3031	<<locked>>	97%	39943	65%	**96	95%
IMR 4198 👍	<<locked>>	95%	55056	89%	**85	100%
IMR 4227	<<locked>>	85%	55390	90%	**19	100%
[IMR 8208 XBR]*	<<locked>>	97%	50372	82%	**37	93%
Lovex D073.4	<<locked>>	93%	54694	89%	**03	95%
Lovex D073.5	<<locked>>	95%	54969	89%	**36	96%
[Lovex D073.6]*	<<locked>>	97%	44324	72%	**26	93%
Lovex S053	<<locked>>	86%	55259	90%	**80	100%
Norma 200 👍	<<locked>>	91%	54737	89%	**72	100%
Norma 202	<<locked>>	97%	45353	74%	**45	95%
[Ramshot X-Terminator]*	<<locked>>	96%	54795	89%	**73	92%
ReloadSwiss RS 14	<<locked>>	96%	29936	49%	**08	100%
ReloadSwiss RS 36	<<locked>>	85%	55042	89%	**36	100%
ReloadSwiss RS 40	<<locked>>	96%	55477	90%	**75	96%
Rottweil R 901	<<locked>>	96%	49168	80%	**37	96%
SNPE Vectan BA6 1/2	<<locked>>	90%	55419	90%	**80	100%
SNPE Vectan SP 10	<<locked>>	92%	55288	90%	**98	97%
SNPE Vectan Tubal 3000	<<locked>>	97%	49356	80%	**42	96%
[SNPE Vectan Tubal 5000]*	<<locked>>	97%	39305	64%	**86	94%
[Shooters World Match Rifle]*	<<locked>>	97%	44324	72%	**26	93%
[Shooters World Tactical Rifle]*	<<locked>>	93%	55288	90%	**80	94%
Somchem S321	<<locked>>	96%	54592	89%	**55	95%
Somchem S335	<<locked>>	96%	46992	76%	**09	96%
Vihtavuori N120	<<locked>>	92%	55288	90%	**13	100%
Vihtavuori N130	<<locked>>	97%	53476	87%	**77	99%
Vihtavuori N133	<<locked>>	97%	43801	71%	**63	97%
[Vihtavuori N135]*	<<locked>>	97%	33228	54%	**01	93%
[Vihtavuori N140]*	<<locked>>	97%	42467	69%	**53	94%
[Vihtavuori N530]*	<<locked>>	96%	52982	86%	**19	94%
[Vihtavuori N540]*	<<locked>>	97%	42395	69%	**50	94%
Winchester 748	<<locked>>	97%	54070	88%	**95	95%
[Winchester StaBALL Match]*	<<locked>>	94%	54520	88%	**39	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2207	<<locked>>	81%	41278	67%	**60	100%
[ADI AR 2219]*	<<locked>>	81%	36956	60%	**32	93%
[Accurate 2015]*	<<locked>>	81%	31691	51%	**29	93%
[Accurate 2230]*	<<locked>>	89%	44527	72%	**60	90%
[Accurate 2460]*	<<locked>>	86%	39914	65%	**65	91%
[Accurate 2495]*	<<locked>>	84%	27789	45%	**60	90%
[Accurate 2520]*	<<locked>>	89%	36738	60%	**16	90%
[Accurate 4064]*	<<locked>>	94%	32938	53%	**14	90%
[Alliant AR-Comp]*	<<locked>>	81%	27557	45%	**53	93%
Alliant Reloder-10x	<<locked>>	81%	34490	56%	**73	95%
Alliant Reloder-7	<<locked>>	81%	42917	70%	**63	98%
[Baschieri & Pellagri 106]*	<<locked>>	81%	37724	61%	**14	94%
[Hodgdon BL-C2]*	<<locked>>	92%	42221	68%	**76	90%
[Hodgdon Benchmark]*	<<locked>>	88%	40944	66%	**45	90%
[Hodgdon CFE BLK]*	<<locked>>	81%	42902	70%	**62	90%
[Hodgdon H322]*	<<locked>>	83%	33141	54%	**11	91%
[Hodgdon H335]*	<<locked>>	81%	36448	59%	**02	91%
[Hodgdon H4198]*	<<locked>>	81%	39987	65%	**25	93%
Hodgdon TrailBoss	<<locked>>	80%	23496	38%	**33	100%
[IMR 3031]*	<<locked>>	89%	30995	50%	**78	90%
IMR 4198	<<locked>>	81%	35897	58%	**89	97%
IMR 4227	<<locked>>	81%	48124	78%	**78	100%
[IMR 8208 XBR]*	<<locked>>	92%	42221	69%	**34	90%
[Lovex D073.4]*	<<locked>>	85%	39552	64%	**32	90%
[Lovex D073.5]*	<<locked>>	87%	39914	65%	**65	91%
[Lovex D073.6]*	<<locked>>	91%	36738	60%	**16	90%
Lovex S053	<<locked>>	81%	47181	77%	**19	100%
Norma 200	<<locked>>	81%	39117	63%	**91	98%
[Norma 202]*	<<locked>>	88%	34635	56%	**40	90%
[Ramshot X-Terminator]*	<<locked>>	93%	49371	80%	**55	91%
ReloadSwiss RS 14	<<locked>>	81%	23438	38%	**89	100%
ReloadSwiss RS 36	<<locked>>	81%	49472	80%	**24	100%
[ReloadSwiss RS 40]*	<<locked>>	85%	38014	62%	**25	90%
[Rottweil R 901]*	<<locked>>	86%	35360	57%	**24	90%
SNPE Vectan BA6 1/2	<<locked>>	81%	43468	71%	**63	100%
[SNPE Vectan SP 10]*	<<locked>>	81%	37420	61%	**29	91%
[SNPE Vectan Tubal 3000]*	<<locked>>	86%	34896	57%	**52	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	91%	32155	52%	**56	90%
[Shooters World Match Rifle]*	<<locked>>	91%	36738	60%	**16	90%
[Shooters World Tactical Rifle]*	<<locked>>	87%	44121	72%	**24	90%
[Somchem S321]*	<<locked>>	88%	41089	67%	**14	90%
[Somchem S335]*	<<locked>>	85%	32489	53%	**83	90%
Vihtavuori N120	<<locked>>	81%	38276	62%	**35	100%
[Vihtavuori N130]*	<<locked>>	81%	32750	53%	**22	94%
[Vihtavuori N133]*	<<locked>>	83%	28587	46%	**65	90%
[Vihtavuori N135]*	<<locked>>	93%	29646	48%	**63	90%
[Vihtavuori N140]*	<<locked>>	90%	34084	55%	**78	90%
[Vihtavuori N530]*	<<locked>>	90%	42148	68%	**47	90%
[Vihtavuori N540]*	<<locked>>	91%	34606	56%	**20	90%
[Winchester 748]*	<<locked>>	89%	40451	66%	**24	90%
[Winchester StaBALL Match]*	<<locked>>	90%	45281	73%	**29	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.

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