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Is there a model compatible with 300blk? — 3 Answers

by Jay, from TX, United States Asked on April 16, 2018

Name SSI Sight-Rite Chamber Cartridge Laser Bore Sighter (4.1)
As Low As $24.99 Save Up to 38%
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Answered by Ethan C., Gear Expert, from IL, United States, on June 25, 2018

We do not have any made specifically for .300 Blackout, however you can use one of the options for .223/5.56 as the .300 Blackout round uses the same .223 Remington parent case, so it will still lock in the chamber properly.

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Answered by Keith, guest, from CO, United States, on September 25, 2020

Not true. The .223/5.56 bore sight cartridge will NOT chamber in a .300 BLK. I just tried it myself. The BLK cartridge shoulders down at about 1.15 inches from the rim (where the neck starts). The shoulder of a .223 cartridge starts at about 1.45 inches from the rim. A .223/5.56 bore sighter will not work in a .300 Blackout chamber.

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Answered by mario7979, guest, from GA, United States, on February 13, 2021

I chambered my 223 laser bore sight in my 300 blackout... It seated firm pushed the bolt forward and the laser did not move around and bore sighted the 300 blackout....true the bolt will not lock in place but will hold the laser in place.

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