Difference between 139gr vs 140gr loading data

[Kevlak]

Hey all,

I have box of lapua scenar .264 139gr, thinking of using them in my 6.5x55, I can easily find data for viht powders but not much on Hodgdon or imr powders. Would it be safe to use minimum load data for 140gr bullets and work up my charge from there? I don't really see the difference one grain would make, but I thought I'd ask some of the vets first, before I just assume. What's your thoughts?

Kevin

 

[dan belisle]

Go ahead, work up from the minimum charge, you'll be fine. - dan

 

[stubblejumper]

Use the 140gr data.

 

[Purple shoulder]

1 grain or even 5 will make minimal difference. The bullet composition will make more difference by far.

 

[Kevlak]

I couldn't see there being much issue, it's still a cup and core bullet, if it were a mono metal, I'd be a lot more hesitant. Thanks guys

 

[hometownhero]

You can always use heavier bullet weight data like you are asking or if you have 165gr bullet and only data for 168 you can proceed. If bullet composition is the same load and go.

 

[camster]

Be mindfull of the base types and depth you seat to...

BT Lapua fills more case than the Hodgdon data for Flat base 140 speer SP

Better to be 3grains off bullet weight using the Hodgdon 142gr Sierra BTHP.