I'm happy... I think I've found the sweet spot for the 165gr. Ballistic tip.. !!!!

Mobeasto

Mobeasto

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Yesterday I was trying to see what kind of group I will get form the 165 gr. Ballistic tip in my 30-06.. Starting from 62gr. of N560 and going by .5 grains at 63.5 gr. I got this beautiful group ... .921'' From the Far spread and .613'' of center... shooting from 100 yards

I was really happy.. here is a pic..

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Shoot it some more to make sure it's really solid. I've found my best loads shoot great when I'm having a good day and are still good when I'm not shooting well.

The msot important thing is that it puts the first shot from a cold barrel 2 inches high dead centre at 100.
 
I would suggest larger samples - say 10 shot group.

I got great 3 shot groups out of 180grain TSX.

However, when I I tried the same load in a 10 shot group I got three great 3 shot groups instead of one hole :(

Think of it as a possible starting point. But an encouraging one.
 
I would suggest larger samples - say 10 shot group.

I got great 3 shot groups out of 180grain TSX.

However, when I I tried the same load in a 10 shot group I got three great 3 shot groups instead of one hole
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Personally I prefer three shot groups for hunting rifles,and five shot groups for varmint rifles.My reason being that you should never need more than three shots,let alone ten while big game hunting.Instead of shooting more shots per group,I simply shoot more groups.If I can shoot at least five consecutive good groups with a load,I consider the load to have good potential.
 
True enough.

I never really intend on shooting 10 times at anything.

I just use 10 as a consistent juding standard (same to your 5x3). I figure if it is a good load it should come out of the barrel the same either way.
 
The .30-06 does love those 165 grain bullets. You might get the group down a wee bit by fiddling with the load(back to 62 grains and go up by 10ths to 63.5.) and OAL, but you're set for hunting now. Sight in. Then practice, off hand, at 100 on a 9" pie plate.
"...2 inches high dead centre at 100..." 3.5 to 4 inches will put you on target out to about 300 with no hold over.
 
Some of you guys are missing the point about shooting more shots for a group. Most any rifle will shoot three shots before the barrel warms up enough that poor bedding takes over and opens up the group. Sure, for hunting, the first one or two should be all that matters, but if the rifle is properly bedded it will shoot all ten into a nice group.
Also, a well bedded rifle won't make a better group, with say, 62.5 grains of powder, than it will with 61, or 62.
Everytime I read of someones rifle "liking" 58.6 grains, or some such thing, but not 60, in my minds eye I see a rifle crying out to be bedded!
 
Most any rifle will shoot three shots before the barrel warms up enough that poor bedding takes over and opens up the group
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I have fired a few rifles that exhibited vertical stringing by the third shot,due to poor bedding.


Some of you guys are missing the point about shooting more shots for a group. Most any rifle will shoot three shots before the barrel warms up enough that poor bedding takes over and opens up the group. Sure, for hunting, the first one or two should be all that matters, but if the rifle is properly bedded it will shoot all ten into a nice group.
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Shooting 10 shot groups(without letting the barrel cool between shots) results in a very hot barrel which accelerates throat erosion.With cartridges such as the 308win and even the 30-06,this may not dramatically shorten the barrel life,but with high capacity cartridges such as the weatherby magnums and ultramags,the results can drastically shorten the barrel life.

Also, a well bedded rifle won't make a better group, with say, 62.5 grains of powder, than it will with 61, or 62.
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With some loads,accuracy can vary significantly by changing the powder charge very slightly,even with proper bedding.I have several custom rifles that were properly pillar bedded,and while they generally aren't overly sensitive to changes in powder charges,some particular loads are certainly the exception.I also had a 40xb that seemed to be overly sensitive to changes in powder charge,with one or two loads.
 
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I agree with ya there Stubble. I have a .223 precision rifle that is all bedded up properly etc. It went from from a slightly under 1MOA performer with 25.2 up to 25.4gr of Varget. As soon as I hit 25.6 and 25.8 it shrunk right down to a consistant sub .5MOA rifle. Took me a while to find the right combo to the point of where I was getting ready to give up on the thing.

I'm a 3 and 5 shot group shooter myself. To eliminate as many variables as possible you should get on your rifle, set up and then nothing moves except for the hand manipulating the bolt. Your cheek weld should stay solid and should not break until the group has been shot. One of my .308's can shoot 10 shot groups, but there is no way my .338LM could do it without burning the barrel out. If you can shoot 3 real solid 3 shot groups or 2 5 shot groups you are good to go in my books especially for hunting loads.
 
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