help loading 308

[berg]

Ok trying to getting the seating depth on my 308 I have got 150 grs pro hunters ,so chambering a bullet in a cut case dose not push the bullet in enough ,it has to be 60 tho of the lands to give enough bullet length to get to the base off the neck dose that sound ok

 

[8x57]

Why not just set the COAL recommended in your reloading manual or use a factory cartridge to set up your die? For stalking distances any perceived increase in accuracy will be minimal.

 

[Lightyear]

Just try seating the bullet .308" deep ignoring any boat tail. Or just so the base of the bullet is at the base of the neck. Thus if your case prep is good it will ensure a nice concentric seating.

60 thou off the lands might well be perfect in your rifle. The bullet does not neccessarily have to be close to the lands to ensure accuracy, some do and some don't....Just load up a few and try....

Cheers & ATVB

Philip

 

[berg]

Just try seating the bullet .308" deep ignoring any boat tail. Or just so the base of the bullet is at the base of the neck. Thus if your case prep is good it will ensure a nice concentric seating.

60 thou off the lands might well be perfect in your rifle. The bullet does not neccessarily have to be close to the lands to ensure accuracy, some do and some don't....Just load up a few and try....

Cheers & ATVB

Philip

That 83 thou that sounds a big jump

 

[african jack]

if the bullet is set at C.O.A.L. 2.750" where is it in relationship to the lands assuming you have trimmed the case to 2.005"

 

[woodmaster]

I'll have a look at mine later for you. I think there is a fair jump with most 150gr bullets. the .308 doesn't seem to mind this and accuracy not affected enough to worry about. My 6.5x55 does however like to have a much smaller jump, but this is easily obtained with the long bullets.
What rifle you using?

 

[berg]

if the bullet is set at C.O.A.L. 2.750" where is it in relationship to the lands assuming you have trimmed the case to 2.005"

2,750 is from the point of the bullet,I have seated it .308 ,in the neck witch came out at 2.750 or there about not over throw

 

[berg]

I'll have a look at mine later for you. I think there is a fair jump with most 150gr bullets. the .308 doesn't seem to mind this and accuracy not affected enough to worry about. My 6.5x55 does however like to have a much smaller jump, but this is easily obtained with the long bullets.
What rifle you using?

Tikka t3 lite

 

[Paul 600]

Get a OAL gauge and a comparetor. Take the guess work out.

 

[berg]

got one, I was told that ,as a rule of thumb the bullet should be seated at least as deep as the width eg calliber .308 .And to do that there appeared to be a quite big jump but as it came in just under the C.O.A.L ,I gather that it will be ok 78 thou jump to the lands when seated at .308

 

[Paul 600]

Don't worry about numbers. As long as it fits in the mag and there are no signs of pressure crack on if it shoots well with a big jump or on the lands who cares.

 

[berg]

here goes fingers crossed

 

[Paul 600]

Obviously make sure it's within load data tables etc etc!

 

[Southern]

If you crimp them on the bottom of the cannelure, you should be at 2.775" on the pointed bullets. The RN is about 2.50".

The T3 is not picky about jump to the lands. I have never heard of a .308 T3 not shooting well with all kinds of bullets.

You don't say what powder and load. Here are the Sierra Manual pages for the .308 Win. Download and print them off.

http://www.6mmbr.citymaker.com/f/Sierra308Win.pdf

 

[Muir]

Don't worry about numbers. As long as it fits in the mag and there are no signs of pressure crack on if it shoots well with a big jump or on the lands who cares.

Wisdom.
Forget the lands. Why is this such a stumbling block for reloaders?? Does the factory come out and measure your throat with a comparator?? No. Seat the bullet with the parallel sides of the bullet to the base of the neck and crimp it there if you have a Lee FCD. (otherwise, forget the crimp) Mr Southern has it right: The Tikka will shoot a 'deep' seated load very well.~Muir

 

[The tramp]

Wisdom.
Forget the lands. Why is this such a stumbling block for reloaders?? Does the factory come out and measure your throat with a comparator?? No. Seat the bullet with the parallel sides of the bullet to the base of the neck and crimp it there if you have a Lee FCD. (otherwise, forget the crimp) Mr Southern has it right: The Tikka will shoot a 'deep' seated load very well.~Muir

Agreed. Don't worry. Unless you are loading for a custom built bench rest type gun, just load to the book spec, and get out there and grass some deer

 

[berg]

still alive but must admit just a little nervous on the 1st one but all's good ,the 1st5 were so bad I thought there was something wrong with the rifle but they tighten up so I manage a half inch ish at best with 45grn IMR 4895 so what next to get that last bit out of the rifle more powder adjust the seating depth or is that enough .I would like to think there more than that any ideas

 

[Muir]

still alive but must admit just a little nervous on the 1st one but all's good ,the 1st5 were so bad I thought there was something wrong with the rifle but they tighten up so I manage a half inch ish at best with 45grn IMR 4895View attachment 43360 so what next to get that last bit out of the rifle more powder adjust the seating depth or is that enough .I would like to think there more than that any ideas

I wouldn't do a fricking thing to that load except shoot it more.~Muir

PS: I have been shooting since I was 3 years old, and reloading for the last 41 years. When you drop into a load that shoots like that, you thank the Red Gods of Shooting and enjoy it. I know you wish it came harder and think it can be made much better (I used to when I was younger and starting out) but a half inch at 100 yards from a T-3 is damned fine. It ain't a varmint rifle. It's not a bench rest gun. Go kill stuff.

PPS: Only a fool would mess with that load. That is "...the last bit..." from that rifle.

 

[woodmaster]

That's it. don't waste any more lead or powder. shoot a few of this load at 100, 200,300 yds so you know what your drops are and then go shoot some deer. Job done.

 

[Southern]

You did not say what brass or primers, or where you had started.
From scratch, I would start with 42.5 gr of IMR-4895 and load up sets of 5, in increments of 0.5 grains of powder, at 42.5, 43.0, 43.5, 44.0 and 44.5 in Remington brass and Rem 9.5 primers.

Since you got a really good group with 44.0, you could drop back to 43 and load up in increments of 0.2.

But right now, I would just keep it at 44.0, check the velocity, and shoot it a while to see if it keeps shooting good groups at 100, 200 and 300 yards. You might try different primers, like Remington, Federal, CCI 200, and Federal Gold Medal 210 match, if you have them, for sets of 5 rounds to shoot on the same range session.