“Twenty years from now you will be more disappointed by the things you didn’t do than by the ones you did do. So throw off the bowlines, sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.”
- Mark Twain
One thing I did in my 16" ruger scout rifle (.308) was buy some of the xTreme 150 flat point bullets and loaded them with Trail boss. They are very cheap (compared to most jacketed .308 bullets), and like Mark we could get the drops down out to 2-300. Shooting steel with them was a lot of fun, as they took their sweet time getting downrange. Total cost per round was around 15-18 cents not counting brass (and that lasted forever!).
Can you guys post some load data on the 308 subs? Like I said, I'm using a scar.....
Last edited by markm; 03-14-18 at 10:49.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
Yeah, I shot a bit on our indoor range at paper/cardboard to make sure there was no bullet tumbling/keyholing. After that I put on my Sandman-S and didn't have any issues. The plating didn't come off because of the low velocity and the (I think) 1 in 10 twist stabilized them just fine. Very quiet as would be expected.
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Same here. I just love 22lr heavy subs suppressed inside 100 yards. Varmit fun fun. Like the OP, I'm hoping to find a 308 sub load for bigger ground engaging, edible, varmits though.
“Twenty years from now you will be more disappointed by the things you didn’t do than by the ones you did do. So throw off the bowlines, sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.”
- Mark Twain
For safety reasons here are some things to consider when developing a subsonic load...
- Suppressor is off during load development
- Work down from super sonic to subsonic
- A good, reliable chronograph is required to capture data and determine where your load velocities are at with each new reduced charge weight
- Place a large paper/cardboard target within 10 feet once you are dialing in you final loads to determine the stability of your sub load (Checking for Key holing) before you put the
suppressor on. I also do initial load and accuracy development at 50 yds. Once confirmed I dial the loads in at my zero distance.
- Temperature will shift the range of velocities which keep your load in the super or subsonic range in summer vs. winter, for this reason I tend to develop my loads at a stable lower velocity around 1000 FPS instead of 1050 or a little higher that you may find with commercial subsonic ammunition.
- There are occasions where you can still detect a lesser "crack of the bullet" with subsonic ammunition even if your chrono has verified that load well within the subsonic velocity range - I don't remember all of the laws of physics to describe the why's intelligently any longer.
Last edited by jethroUSMC; 03-16-18 at 05:28.
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