About this bullet
.172 | 21gr | Peregrine Plainsmaster (VLR-4) is a bullet made by Peregrine. At 21 gr (1.4 g) and a diameter of 0.172'' (4.37 mm) it suits handloads where bullet weight and barrel length have to be matched carefully. A twist rate of 1:7.5 is recommended for stable flight; slower twists can under-stabilise this bullet. We currently list 52 load recipes across 8 calibers for this bullet.
Most popular calibers for this bullet
| Caliber | Load recipes |
|---|---|
| .17 Hornet | 40 |
| .17 HMR | 12 |
Load data for .172 | 21gr | Peregrine Plainsmaster (VLR-4) bullet is available in the following calibers:
Safety notes
All load data is reference data only. Always start at the minimum charge and work up in small steps while watching for pressure signs. Never exceed the maximum charge published by the powder or bullet manufacturer.