Thread: 300 Blackout

Originally Posted by gundoc

I have just bought a .300 Blk Ruger American Ranch rifle, hand-polished the bolt to remove the 'whistle', given it a trigger job, and fitted an old but tidy 3x Weaver. I will make an overbarrel suppressor and use it as a dedicated subsonic hunting rifle (out to 150 metres). I intend to work up some loads with 220 grain RN as they should have better terminal performance than SMK's, A-max, etc. I have even considered making a hollow-point swage to improve the performance without losing any bullet weight. I will provide updates and pictures as things progress. 40 years ago, when I was playing around with subsonic .308 loads and suppressor designs, the 220 grain RN's worked very well.

I don't think your 220 gr is going to expand at all to do the damage. They might just tumble a bit with a bit of luck if hitting a bone .
Extra weight is of no use as a150 gr cast hollow point goes through an animal quite easily.anymore weight is just waited energy and prone to some spectacular ricochets.
I have tried the 170 gr hornady flat base flat point and made the jig to hollow point the tip and barely saw a difference damagewise on goats compared to the same bullet left original.
The 150 gr cast lead hollow point definitely does the damage and kill animal more humanely and quickly.

And the Lehigh seem to be doing the trick as well.