300 Whisper Subsonic Deer Load?
 

Anyone have a load for a 300 whisper that would be subsonic and provide adequate bullet expansion to use for short range on deer sized game. Thanks

None of the subsonic loads offer expansion.. you would be much better served with supersonic ballistic tipped round for this purpose...

Surely there is something out there. Looking for short range less than 100 yards. Thanks

I have heard good things about the Hornday 220gr RN bullet. I have not tried it yet but there is someone that will be along soon.

Check on the current posts about the 220 RN. The key to subsonic success is tumbling the bullet end over end after a few inches to produce a 1.5 inch plus tear and blood sign.

I have had the best results and accuracy from 208 grain hornady amax's.

how about this http://www.corbins.com/subsonic.htm

how about this.....

http://www.corbins.com/subsonic.htm

FYI - Richard of Wildcatbullets was working on an expansion bullet, but has sold the company. The new owners contacted me today ans said they would be up and running by mid summer, hopefully with the 300 whisper bullet. There is still hope!

The following quote from a New Zealand web site sums the Whisper up nicely (http://home.xtra.co.nz/hosts/suppress/whisper.htm):

The payload for the subsonic .300 Whisper ammunition is preferably in the 240-250 grain weight. Using anything under 220 grains is a waste of time as both energy & "yawing" effect diminish quickly with lighter projectiles. Considering the approximately 1040fps bullet speed needed for subsonic load only the projectile's weight can create sufficient energy. The "yawing" refers to the tumbling of these long 240 & 250 grain projectiles immediately after impact - a major part of the Whisper concept, disreguarded or misunderstood by many. While they are stable in flight, even a cardboard target clearly shows the tendency of these bullets to tumble on impact, thus creating wounds far in excess of their "paper" ballistics. It is futile to look for the magic bullet that expands or mushrooms at subsonic speed - such a thing in a .30 cal sectional density doesn't exist, nor will experiments with cast lead projectiles lead to greatly improved result.

However, a hard & solid 240 grain Sierra Matchking turning over lengthwise is equivalent to a seven times calibre expansion! These high ballistic coefficient projectiles retain energy as well as sub MOE accuracy out to 200 yards & more. While the bullet leaves the muzzle at 1040 fps, at 100 yards it loses only 3%, travelling at 1011fps & at 200 yards it still keeps on motoring with a solid 984fps. As velocity is retained, so is the energy; muzzle 576 ft/ibls, 100 yards 544 ft/lbs & 200 yards 517 ft/lbs. Only beyond 250 yards does the energy start to drop below the 500 ft/lbs mark.