Does Anyone have any subsonic data for 223?

[pyth0n]

Is 1050 fps the threshold of subsonic speed? I am making the assumption that this subsonic speed is important to fox hunting because a suppressor is used? Otherwise it seems to me that the .223 would certainly be a better round than .22lr.

1116 fps is the speed of sound on a standard day, @ sealevel, 59*F & baro press 29.92 inhg. Changes with temp & density.
So anything below 1116fps is subsonic.

 

[s4s4u]

Is 1050 fps the threshold of subsonic speed? I am making the assumption that this subsonic speed is important to fox hunting because a suppressor is used? Otherwise it seems to me that the .223 would certainly be a better round than .22lr.

While 1125ish is the actual speed of sound, depending on elevation, 1050 is the target velocity for subsonic ammo to give a bit of cushion.

A suppressor will not have any effect on the supersonic crack of a high velocity cartridge. To have the least amount of signature, one needs to be subsonic. This is why a 223 will have no advantage over a 22LR when suppressed. Another issue is cycling, a subsonic 5.56 AR will likely become a straight pull bolt action because there isn't enough gas to operate the action.

22LR will cycle nearly any 22 caliber rimfire, HV or subsonic.

 

[Skeet 028]

Well I got in touch with the fellow that does their reloading back east. I gave him a couple loads and he tailored 'em up some. One fellow is shooting a Rem bolt rifle...the other an AR. I knew the reloader had some 5744 cause I sold him a Savage smokeless powder muzzleloader. He worked 'em up in his Contender carbine(another one of mine) using the 5744 and SPPs. He ran 'em over his Chrony and got 1430 FPS and groups under an inch and an eighth. Only has a 90 yd range at his house. Ought to be ok for them for 125 yd or less foxes...oh 60 gr Sierras. While talking with him he told me he has taken(killed) 29 deer with 30 shots with that Savage. from 30 ft to 175 yards. Said he hurried one shot and had to shoot again. So I guess they'll be shooting more foxes. From what I've read that 5744 works well with a bunch of the old BP rounds ...like 4759

 

[Skeet 028]

I guess these fellows were playing around got suppressors for their rifles...and both live on family owned chicken farms on Md eastern shore. Not a lot of rifle shooting back there. There are a lot of foxes and they can get 30-50 dollars for fox hides long as they are not blown up. When I lived back there I used a 22 Hornet on foxes and it was good to 150 yds. Not real loud either. Not many Foxes in Wy...the yotes kill 'em off... the wolves kill the yotes too...The gummit trapper shoots 'em both. I had a couple of very accurate 22s and they worked well on up to 50 yds or so. ...just didn't kill well. Out here in flyover country I use my very accurate Rem 722 in 222 and another in 222 mag for coyotes. The mag is good to 300 yds. I even got rid of my Swift and 22-250 as the 222 mag does well.. I get 50 dollars for good yotes(Winter) and don't even have to skin 'em. The fur buyer does it. Hoping to get a nice bobcat...He does nice work on critter hides. Thanks for all your help and comments.

 

[XUSNORDIE]

.and both live on family owned chicken farms on Md eastern shore. Not a lot of rifle shooting back there.

????? The Eastern Shore of MD holds probably the BEST fox hunting in Maryland. Plenty of rifle shooting there. Two guys from there won our tournament every year. Bringing in typically over 40 foxes on a weekend tourney. They also competed in and did very well in tourneys such as the Big East Coast tournament, which was the largest on the East Coast, sort of like the Super Bowl of predator hunting. Both went on to become FoxPro Team staff, and have been on the TV show Predator Pursuit several times. Tell your friends to ask around and look for Jeremy Brown and Mike Burgess. They probably won't be hard to find. Jeremy is the one who experimented with reduced 223 loads for fox several years ago. Both are well known and easily researched on the internet for predator hunting.

 

[bhp9]

Some of your loading manuals have reduced sub-sonic loads for the .223. I think one of my Hornady manuals has such a load. I used it years ago for lower noise levels when hunting groundhogs in areas where a loud noise would have disturbed neighbors.

And there is the Lyman cast bullet manual. You can use cast bullet loads for subsonic loads or substitute expensive jacketed bullets in place of a cast bullet but I do not know why you would want to do this when cast loads are so much cheaper.

 

[Skeet 028]

Well these fellows as I said are not reloaders. They have a friend load for them. Cast bullet do work well in some calibers. I've even tried 'em. in 222 and 223 ...Nah...the FMJs are not all that expensive...how many will you shoot? I have a 1 pound coffee can 3/4 full of cast 30 cal bullets for 30-30. Had 'em at least 8 years. good for shooting deer...I can shoot 'em from my breakfast nook window with my camo coffee cup. Killed a couple yotes...The 22 cast are at least for me...harder to get to shoot well...When I lived on the E S I used 'em to chase Snow geese out of the winter wheat. Cheap is not always better...just cheaper. But... I shot deer on the Eastern shore with my Savage smokeless powder muzzleloader...75 cents a shot rather than 4 dollar each slugs...more range too. I killed lots of foxes in Kent Queen Annes and Caroline counties. Lots of chicken farms...My last one was out at the Sudlersville skeet club. I gave the fellow that does the reloading my Ruger Hornet...and he plunked it at an easy 175 yds...DRT It is the most accurate Hornet I've had...and I have a Pre War Supergrade Win Model 70 hornet...Ruger is much better...just not as pretty as the M-70...LOL

 

[Mobuck]

Things must work differently in other places. Around here, the only way to anchor a coyote with a 22 rimfire (or it's equivalent) is a headshot. Even body hits with 'tough bullets' from a 223 and up will likely result in a lost animal in many places unless there's snow cover.
Hides aren't worth anything in the MidWest so we use the most 'explosive' bullets available.

 

[XUSNORDIE]

Things must work differently in other places. Around here, the only way to anchor a coyote with a 22 rimfire (or it's equivalent) is a headshot. Even body hits with 'tough bullets' from a 223 and up will likely result in a lost animal in many places unless there's snow cover.
Hides aren't worth anything in the MidWest so we use the most 'explosive' bullets available.

100% agree. Pred Hunting 101 stuff. Use the most frangible bullet for caliber, stay away from bone to prevent "splash" if you for whatever reason want the pelt. They aren't worth anything anymore, but I have been disappointed a few times walking up on a downed yote or fox and if I hadn't splashed on the shoulder it would have been a nice mount. I primarily reloaded V-Max and Sierra Blitz Kings (tipped).

There's a reason manufacturers market Varmint and Predator ammo using V-Max types, and hollow points. Yotes and especially fox are thin skinned. Heck a fox is not much different than a house cat. No need to use FMJ or SP/PSP. In fact it's illegal in most places to use FMJ (for hunting).