.366 | 286gr | A-Square MONO RN

About this bullet

.366 | 286gr | A-Square MONO RN is a bullet made by A-Square. At 286 gr (18.5 g) and a diameter of 0.366'' (9.30 mm) it suits handloads where bullet weight and barrel length have to be matched carefully. Its G1 ballistic coefficient of 0.279 drives velocity retention and wind drift downrange — higher values mean a flatter trajectory at distance. We currently list 403 load recipes across 8 calibers for this bullet.

Most popular calibers for this bullet

Load data for .366 | 286gr | A-Square MONO RN bullet is available in the following calibers:

• 9 x 39
• 9.3 RSM
• 9.3 x 57
• 9.3 x 62
• 9.3 x 64 Brenneke
• 9.3 x 66 Sako
• 9.3 x 72 R
• 9.3 x 74 R

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.