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If anyone was ever curious about what a 300 blackout will do to your 223/5.56 chambered AR, your question has been answered.

http://bearingarms.com/300-blackout-in- ... 15-kaboom/

Be sure and go through the pages so you can see the pics.

comp73 wrote:If anyone was ever curious about what a 300 blackout will do to your 223/5.56 chambered AR, your question has been answered.

http://bearingarms.com/300-blackout-in- ... 15-kaboom/

Be sure and go through the pages so you can see the pics.

The only way I can see this .30 round "chambering" in a .223 is if the bullet was compressed into the case when the bolt closed.

puma guy wrote:

comp73 wrote:If anyone was ever curious about what a 300 blackout will do to your 223/5.56 chambered AR, your question has been answered.

http://bearingarms.com/300-blackout-in- ... 15-kaboom/

Be sure and go through the pages so you can see the pics.

The only way I can see this .30 round "chambering" in a .223 is if the bullet was compressed into the case when the bolt closed.

the "o-give" might have lined up to work with the .223, so who knows. Depends on the .300blk round and seating depth.

Glad I wasn't the one who pulled the trigger. Might have needed a new pair of whitey tighties.

APynckel wrote:

puma guy wrote:

comp73 wrote:If anyone was ever curious about what a 300 blackout will do to your 223/5.56 chambered AR, your question has been answered.

http://bearingarms.com/300-blackout-in- ... 15-kaboom/

Be sure and go through the pages so you can see the pics.

The only way I can see this .30 round "chambering" in a .223 is if the bullet was compressed into the case when the bolt closed.

the "o-give" might have lined up to work with the .223, so who knows. Depends on the .300blk round and seating depth.

When comparing the rounds it's feasible that the .300 BLK case could fit in the chamber only with the bullet compressed into the case. The bullet would only enter the shoulder portion of a .223 chamber to the point the ogive matches the chamber neck diameter. Here's a picture of a .223 w/ .300BLK on each side. The round on the right with no neck crimp could easily allow the bullet to be pushed rearward.