.308 Boat tails

[just bill]

I have a mold for a 170 grain flat nosed lead bullet, 1.25" long and the largest diameter base ring is 0.268". Can this be used for a core in a .308 jacket. I desire to make 210+/- grain boat tail bullets. The reason I ask is I've seen the core molds for .308 are 0.247" before core swaging.

Thanks,
Bill

[Reload3006]

Probably not but you could try. I don't have any jackets handy to check the ID on. I have some that are extremely tapered and even a .250 core will not go in them. Also you need a little room for air to escape while core seating or you will have air pockets that will affect bullet stability.

[Smokin7mm]

Agree with the above statement. It all depends on the jacket you are using and if it will drop in. I know some use cores cast from a bullet mold but my personal opinion is that all those lube, crimp, & gas check groove just increase the chance for trapped air, especially if it tight to the jacket to begin with. I do all my swaging with lead wire. A straight sided cast core would also work, I just prefer the wire.

Bret

[clodhopper]

A .308 bullet would need to be sized down to something like .260 to fit into a .308 jacket with walls .020 thick.

[just bill]

Thanks guys,

.025" core is the way to go. Just thought the bullet would go, did not know the wall thickness of the jacket.

[just bill]

I have another question about boatails. When the initial boat tail is formed in the core seating die does it add length to the jacket or just reshape the base? I ask this because if it adds additional space for more lead to change the weight, mathematically , which can lead to a different jacket. Right now R. Corbin says that a 200 grain bullet is capable of bring made with a 1.3 jacket which is vary close to 200 gr, mathematically which those jackets are more readily available.
Thanks,
Bill

[BT Sniper]

A .264 pin gauge will just fit in the RCE 1.3 jacket. The weight of that jacket is about 48 grains. Your mold would work but you may need to push the cores threw a simple sizing die first to reduce the diameter slightly.

Here is a pic of his 1.3 with a 10S ogive and a boat tail at 195 grains. I had maybe 3-5 grains of room for lead left in the tip.

Yes a boat tail will slightly lengthen the bullet and slightly reduce the weight capacity of the jacket.

http://i636.photobucket.com/albums/uu87/BTSniper/9e05cc24-5e1d-4c9b-84fd-3b6decab438c_zpscc791fb6.jpg (http://s636.photobucket.com/user/BTSniper/media/9e05cc24-5e1d-4c9b-84fd-3b6decab438c_zpscc791fb6.jpg.html)

[just bill]

A .264 pin gauge will just fit in the RCE 1.3 jacket. The weight of that jacket is about 48 grains. Your mold would work but you may need to push the cores threw a simple sizing die first to reduce the diameter slightly.

Here is a pic of his 1.3 with a 10S ogive and a boat tail at 195 grains. I had maybe 3-5 grains of room for lead left in the tip.

Yes a boat tail will slightly lengthen the bullet and slightly reduce the weight capacity of the jacket.

http://i636.photobucket.com/albums/uu87/BTSniper/9e05cc24-5e1d-4c9b-84fd-3b6decab438c_zpscc791fb6.jpg (http://s636.photobucket.com/user/BTSniper/media/9e05cc24-5e1d-4c9b-84fd-3b6decab438c_zpscc791fb6.jpg.html)


Thank you, I find my self at odds asking you questions since you have so much work on the dies, thousands of pieces to make up several hundred complex assemblies, your taking time is at the very least commendable if not admirable. It looks like I may finally getting a grasp on the nuances of swaying. (swaging) I can't wait to get my fat little fingers on my dies.
Regards,
Bill

[BT Sniper]

No problem! I'm happy to help when I can.

Good shooting and swage on!

BT

[DukeInFlorida]

Bill,
Not sure why you keep calling it, "SWAYING"...

As I mentioned in an email, there is no "Y" in swaging. (taking my spelling police hat off)

Then again, some of us do start swaying back and forth when we swage..... Not sure what it means.

[just bill]

Bill,
Not sure why you keep calling it, "SWAYING"...

As I mentioned in an email, there is no "Y" in swaging. (taking my spelling police hat off)

Then again, some of us do start swaying back and forth when we swage..... Not sure what it means.
Duke,
I do not call it swaying, the auto spell correction/check, word anticipation feature on my devise changes swaging to swaying. I 've tried to correct it several times , some times it works, sometimes it doesn't . However my gaffer qualities need working on.
Remember, Thomas Jefferson has been quoted as saying any man who spells only one way has no imitation. ( oops imagination)

Bill

[kweidner]

Brian, The bullet in the left, Would you consider that hydraulic denting?