What is the .45 Auto Rim?

The .45 Auto Rim is a pistol cartridge, introduced in 1920.

What bullet diameter does the .45 Auto Rim use?

The .45 Auto Rim uses a bullet diameter of 0.452 inches.

What is the case type of the .45 Auto Rim?

The .45 Auto Rim has a Rimmed Straight case type.

What primer does the .45 Auto Rim use?

The .45 Auto Rim uses a Large Pistol (.210") primer.

.45 Auto Rim

Pistol

Year	1920
Case Type	Rimmed Straight
Primer	Large Pistol (.210")

Dimensions (inches)

Bullet Ø	0.452
Case Length	0.898
Neck Ø	0.472
Base Ø	0.476
Rim Ø	0.516
Total Length	1.28

SAAMI Pressure

MAP (PSI)	21,000
MAP +P (PSI)	23,000
MAP (CUP)	15,000

Muzzle Velocity across 28 loads: Avg 1002 fps Min 795 fps Max 1207 fps

Community Load Data

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Min MV (fps)

Max MV (fps)

⚠ MAX LOAD — Verify before loading

230.00gr Nosler Full Metal Jacket (FMJ) — 7.20gr

SUBSONIC

by imported_data · Aug 12, 2026

935 fps

1.2100 OAL"

Jagemann Case

⚠ MAX LOAD — Verify before loading

230.00gr Saeco Round Nose (RN) — 6.80gr

SUBSONIC

by imported_data · Aug 12, 2026

978 fps

1.2750 OAL"

Jagemann Case

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230.00gr Berry Hollow Point (HP) — 7.20gr

SUBSONIC

by imported_data · Aug 12, 2026

940 fps

1.2100 OAL"

Jagemann Case

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230.00gr Hornady Hollow Point (HP) — 6.70gr

SUBSONIC

by imported_data · Aug 12, 2026

921 fps

1.2100 OAL"

Jagemann Case

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225.00gr Saeco Round Nose (RN) — 6.80gr

SUBSONIC

by imported_data · Aug 12, 2026

945 fps

1.2100 OAL"

Jagemann Case

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200.00gr Saeco Semi-Wadcutter (SWC) — 7.20gr

SUBSONIC

by imported_data · Aug 12, 2026

1040 fps

1.2550 OAL"

Jagemann Case

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200.00gr Hornady Hollow Point (HP) — 7.90gr

SUBSONIC

by imported_data · Aug 12, 2026

1025 fps

1.2100 OAL"

Jagemann Case

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185.00gr Saeco Semi-Wadcutter (SWC) — 7.70gr

SUBSONIC

by imported_data · Aug 12, 2026

1118 fps

1.2550 OAL"

Jagemann Case

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185.00gr Hornady Hollow Point (HP) — 8.60gr

SUBSONIC

by imported_data · Aug 12, 2026

1095 fps

1.2100 OAL"

Jagemann Case

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160.00gr Saeco Other — 8.60gr

by imported_data · Aug 12, 2026

1170 fps

1.2500 OAL"

Jagemann Case

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145.00gr Ervin Other — 8.00gr

by imported_data · Aug 12, 2026

1207 fps

1.2500 OAL"

Jagemann Case

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185.00gr MSSS Hollow Point (HP) — 9.60gr

SUBSONIC

by imported_data · Aug 12, 2026

1076 fps

1.1900 OAL"

Jagemann Case

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160.00gr MSSS Hollow Point (HP) — 11.50gr

by imported_data · Aug 12, 2026

1191 fps

1.1900 OAL"

Jagemann Case

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230.00gr Full Metal Jacket (FMJ) — 5.40gr

SUBSONIC

by imported_data · Aug 12, 2026

853 fps

1.2736 OAL"

Sellier & Bellot Case

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230.00gr Flat Point (FP) — 4.80gr

SUBSONIC

by imported_data · Aug 12, 2026

853 fps

1.2598 OAL"

Sellier & Bellot Case

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225.00gr Flat Point (FP) — 4.60gr

SUBSONIC

by imported_data · Aug 12, 2026

853 fps

1.2047 OAL"

Sellier & Bellot Case

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230.00gr RMR Full Metal Jacket (FMJ) — 4.90gr

SUBSONIC

by imported_data · Aug 12, 2026

795 fps

1.2500 OAL"

Jagemann Case

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230.00gr Hornady Hollow Point (HP) — 5.10gr

SUBSONIC

by imported_data · Aug 12, 2026

870 fps

1.2100 OAL"

Jagemann Case

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230.00gr Winchester Round Nose (RN) — 5.30gr

SUBSONIC

by imported_data · Aug 12, 2026

899 fps

1.2000 OAL"

Winchester Case

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200.00gr Hornady Hollow Point (HP) — 5.60gr

SUBSONIC

by imported_data · Aug 12, 2026

988 fps

1.2100 OAL"

Jagemann Case

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185.00gr Hornady Hollow Point (HP) — 5.80gr

SUBSONIC

by imported_data · Aug 12, 2026

1020 fps

1.2100 OAL"

Jagemann Case

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185.00gr Hollow Point (HP) — 6.30gr

SUBSONIC

by imported_data · Aug 12, 2026

1029 fps

1.2100 OAL"

Jagemann Case

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155.00gr Sinterfire Flat Point (FP) — 5.90gr

SUBSONIC

by imported_data · Aug 12, 2026

1100 fps

1.2100 OAL"

Winchester Case

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145.00gr Ervin Other — 6.20gr

by imported_data · Aug 12, 2026

1139 fps

1.2500 OAL"

Winchester Case

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230.00gr Winchester Full Metal Jacket (FMJ) — 9.00gr

SUBSONIC

by imported_data · Aug 12, 2026

973 fps

1.2500 OAL"

Jagemann Case

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230.00gr Nosler Full Metal Jacket (FMJ) — 9.30gr

SUBSONIC

by imported_data · Aug 12, 2026

1004 fps

1.2100 OAL"

Jagemann Case

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230.00gr Hornady Hollow Point (HP) — 8.40gr

SUBSONIC

by imported_data · Aug 12, 2026

950 fps

1.2100 OAL"

Jagemann Case

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200.00gr Hornady Hollow Point (HP) — 10.00gr

SUBSONIC

by imported_data · Aug 12, 2026

1080 fps

1.2100 OAL"

Jagemann Case

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