November 14, 2012, 03:54 PM | #1 |
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Subsonic Expansion?
Hi Folks!
I've been having a bunch of fun playing with reloading for 300 AAC Blackout, and I've found that excellent accuracy is possible for subsonic loads. However, are there any appropriate bullets -- say 180 to 220 gr -- that will expand at subsonic velocities? Heck, are there ANY bullets that expand at subsonic velocities? Thanks! Dave |
November 14, 2012, 04:42 PM | #2 |
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Join Date: December 29, 2006
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Absolutely.
Have used Lehigh bullets very successfully and Outlaw State bullets also work well. 2 completely different approaches to the same problem of getting a subsonic heavy bullet to open up Go to each website and see for yourself. They are pricey but they also drop deer -- I know others will write in that they have good luck with x or y brand but when I spoke to head of technical dept at Sierra and Hornady and Barnes they all parroted the same thing--"our bullets are designed to open at much faster velocities" Your biggest problem will be getting a subsonic load to work your action-assuming you are on an AR platform. I have a custom made 300 Whisper-aka 300 BLK, bolt and do not have the concerns of enough gas to work the action. I load for 1050 fps and then focus in on accuracy. Currently using Lil'Gun to great success. Have used AA 5 and AA7 and H110 but never got my gun to "appreciate" those powders with giving me both subsonic and accurate loads. Good luck, Gary |
November 14, 2012, 04:59 PM | #3 | ||
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- Hornady A-MAX 208 gr (or Sierra 210 gr, IIRC) - 8.4 grains VV N110 - CCI Small Rifle Magnum primer They stay consistently subsonic and give me 1/2 inch, 50 yard groups. Thanks again! Dave |
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November 14, 2012, 07:59 PM | #4 |
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+1 on the Outlaw State bullets for expanding at subsonic velocities. They're more expensive, but a friend and I have both had great success with them in terms of accuracy, reliability, and expansion. For a general subsonic plinking load though, I stick with the 208 Amax over 10.2 grains of 1680. I've had exceptional accuracy and reliable function, but it certainly doesn't expand at those velocities nor do I think for that matter that the Amax is really going to expand even at much faster velocities.
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November 15, 2012, 11:33 AM | #5 | |
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