Best Bullet Weight

[strycnine]

I'm in for some 220's. How thick is the copper plate?

[MIKEONE]

How bout something like this in the 220-250gr range. Flat base, truncated ogive, wide meplat, HP .308-.309

Your .429 240

[Rikky Lee]

Jay

Looking forward to your comments on what is practical from a manufacturing point of view. I think, to summarize comments so far, we want everything:

a. a very heavy bullet (220 to 250 grains)

b. with a hollow point that expands at low velocity

c. that feeds in a semi auto

For me, the reason I like the Whisper concept, is that tumbling factor. Noting that a 1/8 twist barrel in theory causes the 240 grain Sierra MKs to tumble after hitting something, would a rear heavy subsonic bullet at 250 grains do the same thing? And would a long, small diameter hollow point assist in making that projectile unstable at subsonic velocities?

[HUNTER2]

Due to the drag being on the rear of subsonic projectiles - BT or RBT would be far supperior to flat base ( long distance ). 220, 240 BT with HP that will expand - mark me down for 2,000.....200 gr .357 if you are looking for some more to make. We do appreciate you looking into this.....

[Scoop]

Originally Posted by Rikky Lee

........Noting that a 1/8 twist barrel in theory causes the 240 grain Sierra MKs to tumble after hitting something.......

This is the reason I contacted Berry's to start with. I just killed a doe last Friday with a 240 SMK. Slight quartering-to shot. 30 cal entrance hole and 30 cal exit hole. No tumbling at all even after hitting the spine and deflecting down and out through the ribs on the other side. IMHO, an expanding bullet would be much more of a game stopper than continuing to HOPE for the bullet to tumble.

[BerrysMFG]

Thanks for all the input, I have been talking to our engineers about what we can make with exsisting tooling. We will have to make some of the tooling so I am going to have to post a thread when I have a better answer. We will be limited to between 200-220gr due to the OAL of our current dies and setup for the presses. I am convinced the expansion on our bullets will be perfect for the Whisper. Once again thanks for the response.

Jay Phillips
Berry's MFG

[Rikky Lee]

Jay - good news.

Scoop - how long did it take to find the doe after you shot it?

[BerrysMFG]

Since I don't have access to a 300 Whisper, how about if I supply 100 of our 150gr bullets and a tube of ballistic gelatin to one of your members who would be willing to load and test for all of us to see. I will leave it up to this forum to pick a member to run the test and provide us with loading data and images of the gelatin results. I have a Bullet Test Tube sitting behind my desk and I would like to see what our 150gr FP does pushed through a Whisper.

[Scoop]

Originally Posted by Rikky Lee

Jay - good news.

Scoop - how long did it take to find the doe after you shot it?

Fortunately the shot was high and hit the spine. She dropped where I shot her. Good thing too, as there was very minimal bleeding through the exit hole and none at all from the entrance (I had to probe around with my fingers and pull hair back just to find the hole). Following that blood trail would have been a real "on-hands-and-knees" experience. No doubt a hole through the heart or lung will kill a deer, but finding enough blood to follow will require a larger exit hole IMHO. YMMV.

[ctnsupra1]

I would like to see something in the 240-250 grain range with a decent BC and an expanding hollow point design. Ability to feed in an AR weapons system would be nice as well.