Description
IMR 4198 is a fast-burning rifle powder renowned for its versatility and consistency among handloaders. Its burn rate is well-suited for smaller capacity cartridges and reduced loads, making it an ideal choice for applications like .222 Remington, .223 Remington, .45-70 Government, and .444 Marlin. IMR 4198 features a stick powder form, which may require careful attention during the loading process to ensure accurate measurements, but it generally meters well with proper equipment. The powder exhibits excellent temperature stability, providing reliable performance across a wide range of environmental conditions, making it popular for varied shooting scenarios. Reloaders appreciate IMR 4198 for developing accurate, consistent loads with manageable recoil, particularly beneficial for target competition and varmint hunting. When developing loads, it is advisable to start with manufacturer-recommended loads and work up while monitoring pressure signs closely due to its relatively fast burn rate. IMR's longstanding reputation for high-quality, reliable powders makes 4198 a valued choice for precise ammunition construction.
Specifications
Burn Rate
5.6 (Medium)
Bulk Density
0.825 g/cm³
Density
1.590 g/cm³
Temperature Sensitivity
Low
Suitable Substitutes
Powders with a similar burn rate that may be suitable alternatives (also see burn rate chart):
Standard Loads — IMR 4198
Verified load data combinations using IMR 4198.
.17 Rem.
Berger .172 | 25gr | Berger Varmint 25gr
.17 Rem.
Hornady .172 | 15.5gr | Hornady NTX 15.5gr
.17 Rem.
Hornady .172 | 17gr | Hornady V-MAX 17gr
.17 Rem.
Hornady .172 | 20gr | Hornady V-MAX 20gr
.17 Rem.
Hornady .172 | 25gr | Hornady V-MAX 25gr
.17 Rem.
Impala Bullets .172 | 20gr | Impala LWHV LS 20gr
.17 Rem.
Impala Bullets .172 | 22gr | Impala LW CFN 22gr
.17 Rem.
Lehigh Defense .172 | 18gr | Lehigh Defense Controlled Chaos 18gr
.17 Rem.
Lehigh Defense .172 | 20gr | Lehigh Defense Controlled Chaos 20gr
.17 Rem.
Nosler .172 | 20gr | Nosler Varmageddon BTip 20gr
.17 Rem.
Nosler .172 | 20gr | Nosler Varmageddon 20gr
.17 Rem.
Peregrine .172 | 21gr | Peregrine VLR-4 21gr
.17 Rem.
Peregrine .172 | 22gr | Peregrine VLR-5 22gr
.17 Rem.
Styria Arms | AERO .172 | 19gr | AERO SOLR-SR,- smax:6.90 19gr
.17 Rem.
Styria Arms | AERO .172 | 19gr | AERO SB-SR,- smax:7.00 19gr
.17 Rem. Fireball
Berger .172 | 25gr | Berger Varmint 25gr
.17 Rem. Fireball
Hornady .172 | 17gr | Hornady V-MAX 17gr
.17 Rem. Fireball
Hornady .172 | 20gr | Hornady V-MAX 20gr
Subsonic Loads — IMR 4198
Verified subsonic load data combinations using IMR 4198.
.30-06 Spring.
Berger .308 | 230gr | Berger Hybrid Target 230gr
.30-06 Spring.
Berger .308 | 230gr | Berger Hybrid OTM Tactical 230gr
.30-06 Spring.
Discreet Ballistics .308 | 188gr | Discreet Ballistics Selous Machined Expander 188gr
.30-06 Spring.
Hornady .308 | 175gr | Hornady Sub-X 175gr
.30-06 Spring.
Hornady .308 | 190gr | Hornady Sub-X 190gr
.30-06 Spring.
Lapua .308 | 200gr | Lapua Subsonic 200gr
.30-06 Spring.
MAKER .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets 200gr
.30-06 Spring.
MAKER .308 | 220gr | MAKER 300 blackout 220gr
.30-06 Spring.
Peregrine .308 | 155gr | Peregrine Subsonic 155gr
.30-06 Spring.
Reichenberg .308 | 154gr | Reichenberg HDB Subsonic 154gr
.30-06 Spring.
Reichenberg .308 | 200gr | Reichenberg Subsonic 200gr
.30-06 Spring.
Sierra .308 | 220gr | Sierra MatchKing 220gr
.30-06 Spring.
Styria Arms | AERO .308 | 95gr | AERO SUB-I,- smax:11.30 95gr
.30-06 Spring.
Styria Arms | AERO .308 | 115gr | AERO SUB,- smax:11.40 115gr
.30-06 Spring.
Styria Arms | AERO .308 | 190gr | AERO SUB,- smax:23.90 190gr
.300 AAC Blackout
Ferrobull Europe .308 | 180gr | Ferrobull Tripple Expand Jagd 180gr
.300 AAC Blackout
Peregrine .308 | 186gr | Peregrine VRG-2 186gr
.308 Win.
Discreet Ballistics .308 | 188gr | Discreet Ballistics Selous Machined Expander 188gr
Community Loads — IMR 4198
Sample load data calculated with IMR 4198.
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| Cartridge | Bullet | Barrel (in) | Charge (gr) | OAL (in) | Case Volume (GoW) | Max. Pressure (psi) | Muzzle Velocity (fps) |
|---|---|---|---|---|---|---|---|
| .224 | 52gr | Berger Target FB | 24.0 | 24.3 | 2.10 | 32.0 | 54,099 (92%) | 3402 | |
| .224 | 53gr | Hornady V-MAX | 24.0 | 22.5 | 2.26 | 32.4 | 49,371 (90%) | 3199 | |
| .224 | 53gr | Hornady V-MAX | 24.0 | 22.1 | 2.26 | 32.4 | 47,065 (85%) | 3159 | |
| .224 | 77gr | Berger OTM | 26.0 | ••.• | 2.23 | 28.8 | 36,419 (66%) | 2425 | |
| .308 | 150gr | Nosler Expansion Tip | 20.0 | ••.• | 3.29 | 68.2 | 52,692 (90%) | 2654 | |
| .308 | 150gr | Nosler Expansion Tip | 20.0 | ••.• | 3.29 | 68.2 | 50,821 (87%) | 2628 | |
| .308 | 168gr | Sierra HPBT MatchKing | 26.0 | ••.• | 2.89 | 55.3 | 59,074 (98%) | 2654 | |
| .308 | 168gr | Sierra HPBT MatchKing | 26.0 | ••.• | 2.89 | 55.3 | 57,856 (96%) | 2638 | |
| .308 | 168gr | Sierra HPBT MatchKing | 26.0 | ••.• | 2.89 | 55.3 | 57,087 (95%) | 2628 | |
| .308 | 168gr | Sierra HPBT MatchKing | 26.0 | ••.• | 2.89 | 55.3 | 55,129 (92%) | 2605 | |
| .308 | 168gr | Sierra HPBT MatchKing | 26.0 | ••.• | 2.89 | 55.3 | 54,766 (91%) | 2602 | |
| .308 | 168gr | Sierra HPBT MatchKing | 26.0 | ••.• | 2.89 | 55.3 | 51,068 (85%) | 2552 | |
| .309 | 160gr | LEE Mold C309-160-R | 18.0 | ••.• | 2.60 | 56.0 | 54,592 (91%) | 2516 | |
| .358 | 250gr | Speer Spitzer Soft Point | 22.0 | ••.• | 2.75 | 44.2 | 41,234 (82%) | 1969 | |
| .358 | 250gr | Speer Spitzer Soft Point | 22.0 | ••.• | 2.80 | 44.2 | 38,870 (78%) | 1949 | |
| .458 | 300gr | Hornady InterLock | 22.0 | ••.• | 2.55 | 79.0 | 31,536 (99%) | 1988 | |
| .458 | 350gr | Hornady InterLock FP | 22.0 | ••.• | 2.55 | 79.0 | 25,519 (80%) | 1759 | |
| .458 | 500gr | Hornady DGS | 16.0 | ••.• | 2.26 | 63.0 | 30,414 (87%) | 1276 |
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