Thread: Help needed for 308 subsonic load

I speak about subs in a 308 but i do shoot a lot in 300 Blackout, I’ve run all sorts of projectiles from 125gr noslers to 230gr Berger’s, with the longer case of the 308 the 151gr cast HP you should no problems feeding into the chamber not like 300 blackout we have to single feed them. With the 151gr I get just over a inch group at 100m, have smoked over a few reds with them. I only really use them for coons that the hound has sniffed out and putting deer, goats out of there misery from a non fatal shot. My main deer subs is the Lehigh 168gr CF and the 194gr ME and has accounted for 200+ deer. The 168gr is more forgiving round if your shot placement is off 4-5 inch’s as the bullet breaks apart coursing 4 or 5 separate would channels, it’s like a 5 pallet shot gun going off inside the chest cavity with massive internal damage. The 194gr is more like a Broadhead and penetrates a long way inside, I’ve had pass throughs and a star shape exit wound with this round, and some found on the far shoulder in the skin.
Most of the other projectiles just pencil though coursing minimal damage unless they tumble, ok if your head and neck shooting.

The only issue with the lehighs is they need a 1:8" twist to stabilise, the 151gr hp will stabilise in a 1:12" according to JBM.

the Lehigh sounds great for me as my rifle is 1:8 twist. but the price is abit bugger

what MV and distance did your Lehigh do?

Per kg of meat recovered, the price of the Lehigh would quickly get forgotten.

Originally Posted by Friwi

Per kg of meat recovered, the price of the Lehigh would quickly get forgotten.

Yes you get a lot of meat for $3 even if you double tap them. You would spend more on the fuel getting there to your favourite hunting spot and food for the trip.

The biggest cost is the initial load development and drop confirmation at the desired shooting ranges. And also subsequent batch chrony confirmation.

You definitely need a fast twist barrel for the Lehigh’s.

I use 10gr of trailboss behind a 200 gr lapua subsonic projectile. Rifle is a 13” Remington with a 1-10. It groups .75 moa at 100 and is only just stable. The holes are only just starting to turn oval on paper.
Because of this I have found they tumble like hell when they hit meat. I have dropped 10 or so goats with them, clean kills through the lungs.


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Originally Posted by 338

I have dropped 10 or so goats with them,


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Not to mention 5 late lambs


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The good thing with the round nose heavy weights 200gr+ on goats it tears them up good and if you don't mind pass thoughs you can line up 2 goats with one shot quite easily and dropem both on the spot.

Originally Posted by 338

I use 10gr of trailboss behind a 200 gr lapua subsonic projectile. Rifle is a 13” Remington with a 1-10. It groups .75 moa at 100 and is only just stable. The holes are only just starting to turn oval on paper.
Because of this I have found they tumble like hell when they hit meat. I have dropped 10 or so goats with them, clean kills through the lungs.


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Where did you get the lapua subsonic projectile's from?

Originally Posted by winaa

Where did you get the lapua subsonic projectile's from?

I use the Lapuas too. Got them from Belmont Ammunition. (my avatar shows a young Sika stag that got one through the head)

Do you run into any issues if you go from a lead sub to a full power jacketed bullet without cleaning the barrel?

Originally Posted by FatLabrador

Do you run into any issues if you go from a lead sub to a full power jacketed bullet without cleaning the barrel?

I have done it at the range and had no issues.

do the lapua projectiles mushroom at all at subsonic speed?

nosler ballistic tips shure dont

Found this info today though it might be useful https://kaimairifle.files.wordpress....o-26112017.pdf
Dean Maisy does a rifle especially for shooting subs or can re-barrel your rifle https://kaimairifle.co.nz/