Tried Hawk Bullets?

[Murmur]

I'm shooting a Thompson Contender carbine with 18 1/2" 1-8 twist barrel so I can use the heavy 240gr MK at 1050 fps from my barrel. Most whisper users have 1-8 twist barrels to utlilise the heaviest bullets possible for as much energy transfer as possible at subsonic speeds. There are some whisper users with a slower 1-10 twist rate that will only stabilise 220gr Roudnose bullets at subsonic speeds.
BC at these speeds is really erelevent.........what we need is expansion....not the pencil stab wounds that we get with bullets not expanding at subsonic speeds.

[Bulletsmith]

Thanks guys,thats the info I was looking for.Now when you say we need expansion,are you saying you want a nice mushroom,or total blowup into lead dust and jacket fragments,there is a huge differance between the two from my perspective. Now,a real stupid question, is the 200 yd distance about tops or are you looking @300.400 etc where the velocity gets even slower.A bullet that will expand @950 fps may have some isssue's expanding @500 fps. Remember I know nothing of this cartridge and you fine fine folks will have to kinda hold my hand for a bit ,untill I get my legs under me LOL
thanks
Bulletsmith

[pmc]

Personally I am not looking for a 300 or 400 yard shot on game. I limit my shots to 100 yds or less, but part of that is because I live in Middle TN. Lots of woodlots & small fields. I really have to work to get a shot longer than 200 yards.

As far as expansion a nice mushroom would do nicely for deer loads. For coyotes loads I am thinking a frangible bullet would be great.

Pmc

[Murmur]

For me hunting ranges can range from 25yds all the way out to 200yds where I draw the line at using sub loads on game. Once past 100yds bullet drop is a real issue so a range finder is a must!
A bullet that would still give a nice Mushroom at 200yds would be excellent.

I still can't believe no body else is posting here for recommendations to give richard some help on bullet design!!!! Come on someone is here trying to help..
I'm sure plenty of people have read these posts!

[Bulletsmith]

PMC
I shipped the bullets today.I would think about 12 working days BUT sometimes I think canada post uses a horse and a fat clydsdale at that!!!!!! This really doesn't make sense to me,but to deliver to FortShaw Montana usually takes 18 days,I can drive there in 10 hours!!! I can ship to texas faster. Thanks for the info and imput on the bullets,
Bulletsmith

[Bulletsmith]

I think the first step is have patrick shoot these into the same media and test for expansion.If it what is wanted,and I would like as many opinions as possible after he puts pics up,great,then either go with a tapered jacket where the shank section is heavier for a mushroom,or start looking at a hollow punch/ jacket seraterto make it more fragile. I would really like to do it right the first time but I will be the first to admit that I have never had to play with velocities this low,so again,this is a new field and the worst part is I don't have a whisper to do the trials with...... YET!!!!! Are there any opinions on a ssk barrel or bull berry on a encore frame??????
thanks
Bulletsmith

[Bigfoot]

Richard

There is subsonic load data for a .308 on this board.
7.62x39 will work also although the bore is a couple thousands larger.

Oh, and there is a 7mm Whisper also. http://www.300whisper.com/sskwhisper.html

Stay warm up there,
Bigfoot

[pmc]

Bulletsmith, I would look at SSK. JD Jones is the designer of the Whisper and SSK is his company. If anybody knows the round he does.

I will be looking for the bullets. When they get here I'll take measurements, detail my load workup and document the results.

You may want to look over at Silencertests.com also. I was just directed to their site the other day and some of those guys are experimenting with subsonic .308.

Pmc

[GunGeek]

Originally Posted by Bulletsmith

Thanks guys,thats the info I was looking for.Now when you say we need expansion,are you saying you want a nice mushroom,or total blowup into lead dust and jacket fragments,there is a huge differance between the two from my perspective. Now,a real stupid question, is the 200 yd distance about tops or are you looking @300.400 etc where the velocity gets even slower.A bullet that will expand @950 fps may have some isssue's expanding @500 fps. Remember I know nothing of this cartridge and you fine fine folks will have to kinda hold my hand for a bit ,untill I get my legs under me LOL
thanks
Bulletsmith

Bulletsmith, It's great to have someone really looking at our market seriously. I personally am looking for expansion (mushrooming) while maintaining bullet integrity. 100% weight retension to deliver the energy into a coyote/ferrell dog/ferrel hog/bobcat as needed. As for nose design, The only drawback I could think of with a big ol honkin hollowpoint would be many of us shoot these in an AR-15 rebarrelled for 300whisper. The OAL of a loaded round comes very close to the .223 and one way to make brass is to shorten and neck down .223 so it is a natural fit.

The other reason I asked about you coming up with a RNSP instead of HP was that I'd like to see just how heavy a bullet you could come up with. I know I'd like to see something up closer to 300Gr and imagine others may want that as well. Terminal ballistics has everything to do with energy and momentum delivered to teh target so since we have a speed limit of 1050fps, the only way to get more energy is to fling more poo with each shot.

200yds is the farthest I would shoot with the 300whisper. Right now I'm using a .308 but with the influx of uptight urbanites into the country there are more complaints about the noise and shooting so I'm delving into 300whisper to keep the peace, in more ways than one.

Anyway, welcome to the boards and thanks for the attention you're giving our little community. Once you settle on a reliable design, I can see an order for 500 or 1000 from me.
Thanks again,
John