6x45mm

[rodwhaincamo]

Can you load 90-105 grn boattails in these cartridges for use in an AR?

[precision_shooter]

Will depend on your twist rate in your barrel. If too slow it may not stabilize the bullet enough for it to be accurate...

[rodwhaincamo]

i know the 6.8mm SPC cannot utilize the 130grn boattails due to over all length. I was afraid the 6x45mm might suffer from this as well.

[taylorce1]

Look for data on the 6mm TCU cartridge. That will give you an idea on COL on the 6x45 cartridge. I built a similar rifle on a 6x47 (.222 Rem Mag) bolt action platform but used a 1:12 twist barrel so it will be tough to stabalize anything probably over 80 grains.

[ranger dave]

yes you can you just have to seat the bullet deap so the mag will work