.375 Chey Tac Load Data & Reloading Guide

Rifle

Also known as: .375 CheyTac, 375 Chey Tac, 375 Chey-Tac

About .375 Chey Tac

The .375 CheyTac is a specialized rifle cartridge developed for extreme long-range precision shooting. It was designed as a superior alternative to the .408 CheyTac, offering flatter ballistic trajectories and higher velocities. The cartridge gained recognition for its ability to deliver accuracy and energy over vast distances, making it a preferred choice for military, law enforcement, and competitive long-range shooters.

Technically, the .375 CheyTac features a case derived from the .408 CheyTac, necked down to accommodate the smaller .375 caliber bullets. The design retains the original CheyTac case dimensions, providing substantial powder capacity for high muzzle velocities. Typically, this cartridge can achieve velocities exceeding 3000 feet per second with properly loaded ammunition, depending on bullet weight and barrel length. The increased velocity and aerodynamic efficiency contribute to its exceptional ballistic performance, with improved resistance to wind drift and minimal drop at extended ranges.

Bullet weights for the .375 CheyTac generally range from 300 grains to 400 grains, with the 350-grain bullet being a common choice among long-range shooters due to its balance between velocity and ballistic coefficient. This caliber excels in applications such as extreme long-range sport shooting and competition, where accuracy and consistency at distances of 2000 yards and beyond are paramount. It also finds limited use in hunting large game where its power and precision are advantageous.

For reloaders, the .375 CheyTac offers significant benefits. The cartridge's design allows for a wide range of bullet types and weights which can be optimized for specific shooting conditions. Precision reloaders can take advantage of high-quality components to fine-tune the performance of their loads, achieving optimal consistency and accuracy. Additionally, the reloading practice for the .375 CheyTac is facilitated by the availability of high-performance powders designed to maximize its ballistic potential. This makes the .375 CheyTac not only a formidable option for long-range engagements but also an exciting challenge for those passionate about custom ammunition crafting.

Technical Drawing

.375 Chey Tac cartridge dimensions, C.I.P.L1 = 62.28 mm, L2 = 68.37 mm, L3 = 76.91 mm, L6 = 113.4 mmL1 = 62.28 mmL2 = 68.37 mmL3 = 76.91 mmL6 = 113.40 mm43.9°

Based on Wildcat, the max. allowed case length is 3.028 in / 76.91 mm, the max. cartridge length is 4.465 in / 113.40 mm, and the max. allowed pressure is 63,817 PSI / 4,400 bar.

Technical Specifications

Maximum Pressure:63817 PSI / 4400 bar
Case Volume:161 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Safety Standard:Wildcat
Bore Area:69.98 mm²
Barrel Diameter:0.375" / 9.5 mm
L1:2.452" / 62.28 mm
L2:2.692" / 68.37 mm
L3:3.028" / 76.91 mm
L6:4.465" / 113.40 mm

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Brass Case Capacities

The following table shows the case capacity (Grains of Water) for brass in cartridge .375 Chey Tac where we have data (number of datapoints in brackets).

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Peterson Cartridge (5)••.•

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Standard Load Data — .375 Chey Tac

Select your desired cartridge and bullet weight below to access the corresponding load table. From there, you can choose any listed load recipe and transfer it directly into the ballistics calculator for further refinement, optimization, and precision tuning.

All
225 gr
230 gr
250 gr
270 gr
300 gr
325 gr
350 gr
352 gr
375 gr
390 gr
400 gr
402 gr
407 gr
410 gr
420 gr
425 gr

Community Loads — .375 Chey Tac

Here are some popular loads for .375 Chey Tac:

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Filter:
BulletPowderBarrel (in)Charge (gr)Case Volume (GoW)OAL (in)Max. Pressure (psi)Muzzle Velocity (fps)
.375 | 325gr | CutEdge LZR (325gr)
Vihtav
N568
28.3••.•161.04.5152,475 (82%)2815
.375 | 325gr | CutEdge LZR (325gr)
Vihtav
N565
28.3••.•161.04.5152,765 (83%)2769
.375 | 325gr | CutEdge LZR (325gr)
Vihtav
N568
28.3••.•161.04.5148,660 (76%)2756
.375 | 325gr | CutEdge LZR (325gr)
Vihtav
N568
28.3••.•161.04.5147,442 (74%)2733
.375 | 325gr | CutEdge LZR (325gr)
Hodgdo
Retumbo
18.0••.•161.04.4455,228 (87%)2536
M.375 | 325gr | CutEdge LZR (325gr)
Hodgdo
Retumbo
18.0122.0161.04.0060,458 (95%)2625
M.375 | 325gr | CutEdge LZR (325gr)
Hodgdo
Retumbo
18.0122.0161.04.4459,837 (94%)2598
.375 | 325gr | CutEdge LZR (325gr)
Hodgdo
Retumbo
18.0122.0161.04.4451,019 (80%)2470
M.375 | 330gr | Lehigh Defense Match Solid (330gr)
Hodgdo
Retumbo
32.0••.•161.04.5162,068 (97%)3035
M.375 | 330gr | Lehigh Defense Match Solid (330gr)
Hodgdo
Retumbo
32.0••.•161.04.5159,687 (94%)3009
M.375 | 330gr | Lehigh Defense Match Solid (330gr)
Hodgdo
50BMG
32.0••.•161.04.5161,057 (96%)2995
.375 | 330gr | Lehigh Defense Match Solid (330gr)
Hodgdo
Retumbo
32.0••.•161.04.5137,185 (58%)2657
.375 | 350gr | CutEdge LZR (350gr)
Vihtav
N568
28.3••.•161.04.5152,852 (83%)2726
M.375 | 350gr | CutEdge LZR (350gr)
Hodgdo
Retumbo
18.0••.•161.04.4458,658 (92%)2507
M.375 | 350gr | CutEdge MTH (350gr)
Hodgdo
H1000
29.0••.•166.04.5161,380 (96%)2782
.375 | 350gr | CutEdge MTH (350gr)
Hodgdo
H1000
29.0••.•166.04.5154,418 (85%)2720
M.375 | 350gr | Sierra HPBT MatchKinging (350gr)
Hodgdo
Retumbo
29.0••.•161.04.0061,251 (96%)2874
.375 | 352gr | CutEdge MTAC (352gr)
Vihtav
N570
30.0••.•161.04.4751,663 (81%)2782
.375 | 352gr | CutEdge MTAC (352gr)
Allian
Reloder-33
30.0••.•161.04.4751,619 (81%)2772
.375 | 352gr | CutEdge MTAC (352gr)
Allian
Reloder-33
30.0••.•161.04.4744,222 (69%)2651
M.375 | 375gr | CutEdge LZR (375gr)
Vihtav
N570
36.0••.•161.04.5160,191 (94%)2933
.375 | 375gr | CutEdge LZR (375gr)
Allian
Reloder-50
30.0••.•161.04.5155,854 (88%)2753
.375 | 375gr | CutEdge LZR (375gr)
Vihtav
N570
29.0••.•161.04.5155,666 (87%)2740
.375 | 375gr | CutEdge LZR (375gr)
Vihtav
N570
30.0••.•161.04.4552,736 (83%)2723

Frequently Asked Questions

The maximum pressure for .375 Chey Tac is 63,817 psi | 4,400 bar.

.375 Chey Tac typically uses a Large Rifle Magnum (LRM) primer.

The case capacity of .375 Chey Tac is approximately 161 grains of water (H₂O).