Thingiverse
.300 Blackout Stacking Loading Block
by brass_ring
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This 300 Blackout labelled loading block is sized for the .221 Remington Fireball cartridge and works with all of the .222 Remington longer or equal length derivatives. 20 mm clearance is provided for powder funnels. Look for my .222 Remington loading block for longer .222 Remington derivatives.
This is a work in progress, so check for updates before printing.
This is a work in progress, so check for updates before printing.
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