quote:

Originally posted by vzerone:
It's not so much fit the groove diameter, albeit the bullet should be larger then the groove diameter, but fit the throat. Example: say the throat is .312 it's hard to fit a bullet into it that larger then that. It will force you to seat your bullet deeper and we don't want that.

quote:

Originally posted by Uncle Grinch:
That’s a good start. With cast “boolits”, as we call them, there are many variables. The bullet type, i.e., bore riding or blunt nose may cause fit issues with you throat.

Keep it simple and change one thing at a time.

quote:

Originally posted by vzerone:
Did you bother reading the dimension specifications of those two bullets? They are 8mm bullets and way too fat for a 308, unless you had something else in mind?

quote:

Originally posted by Lamar:
you must have a long throat.
the 31-165 A is drawn expressly for the 308.
it has almost the same shape as above.
but is cut for the shorter ball seat area of the 308's throat, and has enough room for OAL adjustment for a new rifle or a used rifles throat shape.
it also runs from whatever regular speeds for cast is, up through 24-2500 fps no problem, and is really only limited by the flat nose shape Tom cuts.

quote:

Originally posted by shootaway:

quote:

Originally posted by Lamar:
you must have a long throat.
the 31-165 A is drawn expressly for the 308.
it has almost the same shape as above.
but is cut for the shorter ball seat area of the 308's throat, and has enough room for OAL adjustment for a new rifle or a used rifles throat shape.
it also runs from whatever regular speeds for cast is, up through 24-2500 fps no problem, and is really only limited by the flat nose shape Tom cuts.

Thanks for the advice. I'll try seating it a little deeper in the case. If that does not work,I'll order the one you suggested.

quote:

Originally posted by The Dane:

quote:

Originally posted by shootaway:

quote:

Originally posted by Lamar:
you must have a long throat.
the 31-165 A is drawn expressly for the 308.
it has almost the same shape as above.
but is cut for the shorter ball seat area of the 308's throat, and has enough room for OAL adjustment for a new rifle or a used rifles throat shape.
it also runs from whatever regular speeds for cast is, up through 24-2500 fps no problem, and is really only limited by the flat nose shape Tom cuts.

Thanks for the advice. I'll try seating it a little deeper in the case. If that does not work,I'll order the one you suggested.

Carefull with that!
Do not seat the bullet to deep and do not get the gascheck under the shoulder. It might scrape of and stay in the barrel and the next shot will wreak havoc on the gun.
Does'nt happen often (at all) but once is to much.

quote:

Originally posted by Lamar:
are you getting any engraving with them that short?
it doesn't hurt for the bullet to be touching the lands or ball seat area, its usually helpful actually.

quote:

Originally posted by vzerone:
What bullet lube are you using and do you know what velocity you are shooting at?

quote:

Originally posted by vzerone:
Thanks for the report back. In my opinion and experience I don't believe your lube is up to the task. It is for a few shots. Did you examine the bore or clean it after the shooting and find any leading? If I were you I would try a commercial lube. There are many out there and that's your decision as to which to buy. Try some and see if you get the same accuracy degrading the more you shoot.

quote:

Originally posted by vzerone:
The gun you shot that you said fouled was it a 308 caliber?

quote:

Originally posted by Lamar:
you could also put less lube on the bullet.
cut down to one groove full.
then cut down to just the area above the gas check.
yes that is enough lube.

quote:

Originally posted by vzerone:
My opinion on what Lamar said is they didn't make a multiple lube groove bullets just for looks. They intended all the grooves be filled. Now the thing is that depends on the type of lube you fill those grooves with. If it's a too slippery type of lube then all those grooves add up to bad results. If you have the correct type lube to lube all the grooves then it works fine. Thing is finding that lube.

That lube you've been using, beeswax with little olive oil is not much of a lube. If you're approaching 2000 fps it's, in my opinion, not up to the task. A lube that I don't think is made any longer, Javelina 50/50 Beeswax/Alox was a decent lube in that velocity range. There is more Alox in that beeswax then just a little bit such as you mentioned your olive oil. Beeswax is the basis for many lubes, but not alone. I'm not talking about black powder lubes. You don't want a lube that has high viscosity. Another lube that was pretty good is the old NRA lube, one of the original ones, which was equal volumes of Beeswax, paraffin, and Vaseline. The OLD VASELINE THAT WAS DARK YELLOW OR BROWN that's not on the shelves anymore. You can order vast amounts of it from foreign countries such as India. The new highly refined white Vaseline is not good for this lube anymore. I've been using a soap lube made by my cousin. It's equal volume mixtures of Ivory bar soap, Beeswax, and a Vaseline he makes that is basically like that yellow/brown Vaseline I mentions. There is a touch of Castor oil in it. You might also look at some of LARS lubes. Another good lube is LBT BLUE. It comes in soft and hard. Go with the soft as I feel the hard is geared more towards high velocity rifle shooting. The amount of different lube concoctions out there is mind boggling.

Now if you try Lamars recommendation keep an eye on your bore for leading. I'm worred that since it's not a super lube that lessening the amount of it may lead to leading. Hopefully, maybe, it will shoot better for you.