Sierra 150 Spitzer

L

LAH

New member
This is Sierra bullet #2130 for the 30 caliber rifle. I incorrectly labeled the targets #2125. Loaded these to try in the 700 Remington 30-06. I have to bunch of Data 85 powder & CCI #34 primers so used such. Please note the powder is a little slow for 150 grain bullets in this case & the powder charge is at the bottom of the chart so it is what it is. Velocity should be 2700-2750 fps.

The bullet & seating depth


Powder


Primers


First 100 yard group


Second 100 yard group


2 each 200 yard groups. 5 shots are in 2.38" with one shot, a flyer, opening to 3.16"
 
Also shot a 300 yard group.


Part of the mixup in labeling the targets, I was also shooting a few of the #2125 bullets which is 'bout the same bullet only with a boat tail. Below are 2 shots using the boat tail bullet & 2 shots using the flat base bullet on the 300 yard steel plate. The high 5th shot on the right was fired offhand.
 
works for me

I use that Sierra "Pro-Hunter" .30/150 also, in 2 of of my .308 hunters, and it has always been an accurate bullet for me too. Drive my hunting loads with modest loads of 4064.

That flat base, common spitzer shoots well, expansion is good, and it won't break the bank either.
 
57 is lightly compressed is it not? I wonder if you Neck resized do you think you would see a slight improvement in groupings?
Otherwise that's a dandy recipe you have there already.

Only data powder I have ever used is Israeli Arms 2300. Works good.
 
Sureshot those loads are neck sized & the powder isn't in the neck so it's not compressed. I'm thinking a heavier bullet perhaps something 180-200 grains would work better with this powder. And if I were serious about accuracy I might also consider a different primer. These are components on hand & for where I'm hunting will work. If I'm not hung up on the. 223 this winter I may work with the powder more.
 
It is interesting that the data on your container is so much different from the Ramshot Hunter data on their website. If they are truly interchangeable, you're below the starting Hunter load. I am by no means saying to go by the Hunter data, but according to Accurate you could.

http://www.accuratepowder.com/wp-content/uploads/2010/09/WP_LoadSpec_1-23-14.pdf

Edit: Well on a second look, when comparing apple to apples, (both 150 gr SST loads) it's only a 0.4 gr difference in the starting load, and a 1.8 gr difference in max loads. There could be that much variance from lot to lot of the same powder. Apparently the Sierra can be pushed a little harder than the SST before building too much pressure
 
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