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-   -   Ballistic tips - ballistic tips - ballistic tips (http://www.saubier.com/forum/showthread.php?t=32725)

Adam 06-29-2017 06:24 AM

Ballistic tips - ballistic tips - ballistic tips
 
Hi, I'm in Australia and have started producing Ballistic Tips, The tip we have now is for 17 to 30 cal in a VLD style.
We are now looking at a Tip for the 338 to 408 market.
I would like some input in designs from Bullet swagers in the USA, Sadly i cannot seem to load up photos..

camel 06-29-2017 11:27 PM

G'day Adam, sorry I can be of any help with that stuff, but good to see another Aussie here.

Haven't been doing some for a bloke by the name of Bill in Tassy have you ??

MIBULLETS 06-30-2017 01:44 AM

tips
 
Are you making just the tip or a bullet with a tip? I would be interested in your tip design. Are you injection molding them?

To upload photos you need to use a photo hosting site like Photo Bucket or one of the others out there.

Prose 07-01-2017 02:35 AM

Do you have a website or a document that you'd be able to send to me?

Bills Shed 07-06-2017 10:48 PM

Plastic tip in a 17
 
I have some of the tips sent to me by a mutual friend and will I be putting them in a 17 gn swaged projectile made from 22lr cases. From first impressions they look good but the proof is in the shooting. I will need to build some sort of tip closing die as my current fodder is a open tip. I don't know if it is really required for a 17 cal projectile travelling at 3600f/s + but it doesn't hurt to have a go.

Bill

Bills Shed 07-08-2017 09:14 AM

Had to have a go.
 
So I could hear these plastic tips calling me from the reloading shed and so could not help myself and had to have a go fitting them to my 17 cal projectiles. I did not have a lead tipping die and just wanted to see if they fit the jackets nicely. I only did 20 and I already had the cores seated so it was just a point forming process. I am using Larry Backmon dies in a D Corbin S type press.
To start it was a bit of a process! I tried to point form them to a point where the point was just closed enough so that the stem of the plastic tip was a push fit into the projectile and then finish the point forming to secure the plastic tip and get the final diameter.
This proved tricky but possible and with a bit of practice and die setting they came out of the die nicely. Just as a bit of a trial I then just dropped a tip into the die, point down, and then just point formed them as usual. Being a 17 cal die, the tip could not tumble around in the PF die and slid down to the bottom of the die in the correct orientation. As the point was formed on the projectile it gripped the stem of the tip and jacket/tip fit was perfect. No issues at all!
Only drama is the ejection pin had to push on the tip of the plastic and so flattened it a little. A lead tipping type punch may work better with no distortion to the tip, but my process worked fine and the fit from jacket to tip was perfect with the correct diameter of the projectile being achieved.
Posting pictures seems to be a bit of an issue at the moment with my slow satellite speeds. Will try later.

Bill

Adam 08-15-2017 09:27 AM

Quote:

Originally Posted by MIBULLETS (Post 256815)
Are you making just the tip or a bullet with a tip? I would be interested in your tip design. Are you injection molding them?

To upload photos you need to use a photo hosting site like Photo Bucket or one of the others out there.

Hi, sorry for taking so long to get back to you, Yes these are injection molded in a specific grade of Nylon, And by all rights, should easily hold up too 17 Rem velocities once crimped in correctly..
I have what i call factory seconds with a small sink mark on them, I can send you some to look at if you would like..

Adam 08-15-2017 09:29 AM

I can post you some of my seconds to look at if that helps...

MIBULLETS 08-15-2017 10:14 PM

Quote:

Originally Posted by Adam (Post 258412)
Hi, sorry for taking so long to get back to you, Yes these are injection molded in a specific grade of Nylon, And by all rights, should easily hold up too 17 Rem velocities once crimped in correctly..
I have what i call factory seconds with a small sink mark on them, I can send you some to look at if you would like..

Sure, I'd like that. Thank you. I'm in the US though, might be costly to send them.

Adam 08-17-2017 10:14 AM

Quote:

Originally Posted by MIBULLETS (Post 258421)
Sure, I'd like that. Thank you. I'm in the US though, might be costly to send them.

Send me a email....Address etc.... Just make a post with some made up projectiles when you get them....
Adam

MIBULLETS 08-18-2017 02:56 AM

Quote:

Originally Posted by Adam (Post 258462)
Send me a email....Address etc.... Just make a post with some made up projectiles when you get them....
Adam

The problem is, I don't have any ULD/VLD dies. I only have 6S and 8S ogives. Probably won't do your tips justice.

lpreddick 10-26-2017 01:06 PM

A word of warning, maybe. I hunt ghogs and have been partial to open meplates as they quickly deliver their energy inside the varmint and often have no exit wound. A friend made me some 65 gr 6mm bullets with a large meplate and they worked wonderfully...303yds longest kill and no exit. The problem was it's low BC requiring much more elevation over a 100 zero and it did not like wind. He made some with the plastic ballistic tip using the same jacket. The problem...my 14 tw 6BR would not stabilize them...keyhole at 25 yds. My 6x47 Lapua,12 tw stabilized them nicely. To open the meplate enough to accept the tip the bearing surface increased so much as to require a faster twist...just like Barnes 50 gr 22 cal Varmint Grenade requiring a 10 tw or faster.

Randy Robinett 10-27-2017 03:34 AM

Quote:

Originally Posted by lpreddick (Post 261486)
A word of warning, maybe. I hunt ghogs and have been partial to open meplates as they quickly deliver their energy inside the varmint and often have no exit wound. A friend made me some 65 gr 6mm bullets with a large meplate and they worked wonderfully...303yds longest kill and no exit. The problem was it's low BC requiring much more elevation over a 100 zero and it did not like wind. He made some with the plastic ballistic tip using the same jacket. The problem...my 14 tw 6BR would not stabilize them...keyhole at 25 yds. My 6x47 Lapua,12 tw stabilized them nicely. To open the meplate enough to accept the tip the bearing surface increased so much as to require a faster twist...just like Barnes 50 gr 22 cal Varmint Grenade requiring a 10 tw or faster.

I believe your problem (lack of gyroscopic stability) with the "tipped" bullet is not the longer bearing surface, but rather the greater OLA of the bullet, resulting in a lower specific gravity, thus requiring a faster twist. Visualize a projectile made of aluminum vs. copper & lead . . . :eek: ;) RG

lpreddick 10-27-2017 12:29 PM

The jacket was the same as a bullet made with a closed meplate and it was stable in the same 14 tw 6 BR.

Randy Robinett 10-27-2017 02:14 PM

Quote:

Originally Posted by lpreddick (Post 261535)
The jacket was the same as a bullet made with a closed meplate and it was stable in the same 14 tw 6 BR.

But, did not the plastic (or, other material) tip make the bullet longer? That is the issue on a .22 Cal. bullet, increasing the length by a mere 0.060" dictates a 1.0" faster twist rate!:eek:;) Read Modern Exterior Ballistics, or, the complete works of Brian Litz, or other readily available works regarding exterior ballistics.:D RG

lpreddick 11-12-2017 11:12 PM

I've not been able to reach Adam via pvt msg. Is there a source for these tips in the USA? Will Hornady sell them?

lpreddick 11-17-2017 05:47 PM

I have been able to communicate with Adam. Things are not going well. Apparently some have complained about the price of his tips among other negatives. As a result, he is not interested in perusing his desire to provide ballistic tips to non commercial bullet makers...these make their own tips.

moorepower 12-13-2017 04:52 PM

Quote:

Originally Posted by lpreddick (Post 261486)
A word of warning, maybe. I hunt ghogs and have been partial to open meplates as they quickly deliver their energy inside the varmint and often have no exit wound. A friend made me some 65 gr 6mm bullets with a large meplate and they worked wonderfully...303yds longest kill and no exit. The problem was it's low BC requiring much more elevation over a 100 zero and it did not like wind. He made some with the plastic ballistic tip using the same jacket. The problem...my 14 tw 6BR would not stabilize them...keyhole at 25 yds. My 6x47 Lapua,12 tw stabilized them nicely. To open the meplate enough to accept the tip the bearing surface increased so much as to require a faster twist...just like Barnes 50 gr 22 cal Varmint Grenade requiring a 10 tw or faster.

I have shot the 50 grain VG in 1-12 twist barrels and have not had issues? They were not as accurate as cup and core bullets, but no sign of keyhole.


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