Hornady Match 6mm Creed Temp Stability Factor

[RabbitSlayer48]

I have chrono data for Hornady Match 108 gr ammo. (3,101 avg @ 76.5 from 28" bbl), but I don't have data at higher or lower temps. Does anyone have data at different temps and know the resulting temp stability factor that should be used in strelok?

I went out last week and it was 58 degrees. For 1,102 yards strelok said 27.6 moa. Ended up needing only 26.25. The second pair for velocity is 3075 at 58 with temp stability factor of 1.4. I think I need to make sure this is correct before I mess with the bc to true it.

 

[Taylorbok]

You need to go and get your own data for that. some one else's won't be the same. It might be close but powder is different from lot to lot and every rifle shoots different velocity.

 

[6.5SH]

25 fps isn't a ~1.25 MOA difference, the rest of your environmental differences between those sessions make up the bulk of it.

 

[Mr. F]

To the OP

I would get true dope at distance and tune from there by lot and bracket of temp. A "winter" and "summer" data set is enough for me because as 6.5SH said, 25fps is not that much for under 1k.

Would not trust numbers from other guns, lots, ect... and I wouldn't be afraid if tuning the BC after you are dialed on speed at 600-700yds whatever that speed number value ends up being.