About this bullet
.510 | 825gr | MAKER Subsonic REX is a bullet made by MAKER. At 825 gr (53.5 g) and a diameter of 0.51'' (12.95 mm) it suits handloads where bullet weight and barrel length have to be matched carefully. Its G1 ballistic coefficient of 0.71 drives velocity retention and wind drift downrange — higher values mean a flatter trajectory at distance. A twist rate of 1:17.5 is recommended for stable flight; slower twists can under-stabilise this bullet.
Load data for .510 | 825gr | MAKER Subsonic REX 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.
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