Help....need advice

[FW Conch]

^ Nope ^... The 30 Bench Rest is a variant of the 308-1/2" Barnes, created by Frank Barnes in 1961, by shortening the 308Win case. It is claimed to be the "hot number" for score shooters.

The 300 Black Out is a 223 case necked up to 308(or at least one of the latest) :-)

[Zero333]

^ Nope ^... The 30 Bench Rest is a variant of the 308-1/2" Barnes, created by Frank Barnes in 1961, by shortening the 308Win case. It is claimed to be the "hot number" for score shooters.

The 300 Black Out is a 223 case necked up to 308(or at least one of the latest) :-)

You mean 308 1-1/2" (1.5") Barnes.

300aac blackout was made by necking up 221 Remington fireball, but can also be formed by trimming and necking up 223 cases.