need load data

[remmag]

i have been struggling with neck tension on barnes bullets, cant quite figure it out

i tried a speer boat tail 160 grain and it seemed to be real good, i am using reloader 22 powder with winchester magnum primers, does anyone have load data for the speer bullets

thanks for any help

 

[NCsmitty]

www.alliant.com has their data for Speer boattail or flat base. The data can be used interchangeably between the bullets of the same weight. All the data shows are Maximum loads, so you need to start 10% lower and work up as Alliant suggests.

I'm guessing that you were talking about the 7MM ReMag.


NCSmitty

 

[remmag]

yes 7mm mag

thank you

 

[remmag]

NCsmitty

i looked at the guide, they have data for the sp ,i assume that is spitzer, it has a load with reloader 22
the loads they show with the boat tail do not include reloader 22
i want to make sure i understand you correctly, i can interchange the load data from the spitzer to the boat tail

is this beacause the are both jacketed bullets of the same weight, i also notised the coal is different between the 2

not trying to be a pain but want to understand

thanks

 

[NCsmitty]

Yes, they are interchangeable especially at the starting load. Just watch for pressure signs, like a sticky bolt, as you increase your powder loads. That's just standard operating procedure. Your accuracy load should be between 60gr and the Alliant listed max of 65gr of Rel-22.
You'll notice that the COAL is a suggested dimension, and not etched in stone. But at this stage in your load development, the procedure for finding the dimension off the lands for each bullet style can come later. Just use the info that Alliant provides.


NCsmitty

 

[remmag]

i did not realiz this, if i could ask one more question
that would mean i could use the same data for a sierra gameking 160 grin bullet
again its a jacketed bullet of 160 grain, right


thanks

 

[NCsmitty]

i could use the same data for a sierra gameking 160 grin bullet

Yes, just load a start load with the Sierra and work up.

The basic rule is all bullets made with a lead core and copper jacket of the same weight and caliber, will be safe using the starting powder charge for that specific cartridge. The work up for the different brands of bullets may have different outcomes in powder charge when you find the most accurate load for that specific brand of bullet.

Lead-free bullets have their own issues, and I refuse to use them.




NCsmitty