300 load opinion

[Caleb85]

Just seems easy asking instead of blowing up bullets ! ( the third shot of top group is at top of paper)

 

[Buttermilk]

What exactly are you asking?

What cartridge? Distance?

 

[Caleb85]

Sorry ..300 win mag..200 yards...I don't have a lot of A max's so I was asking about what these two groups say to do next ... lengthen or shorten, hotter or colder. ?

 

[Rick Richard]

May not be what you want to here, but that does not tell me anything without knowing a little more information.

The only thing I would do after I have come up with the best group with the bullet and powder combination is to begin experimenting with bullet seating depth off the lands. I follow the method as recommended by Berger. Usually works to achieve best accuracy.

After all that and still not satisfied, then start the process over with a different bullet and powder combination until you fin what the gun likes bes

 

[Canadian Bushman]

Some people tune powder first, some tune seating depth.

I start by tuning powder, with the bullet about .01 from the lands.
Typically this will get me within 1 moa. If i cant get that im usually embarking on a waste of time or the bullet prefers drastically different seating.

 

[alaska]

Need more data

What powder?
Why 200 yards?
What primer and brass?

For my 300 Win Mag

H1000 with 208 Amax or 220 MK work well.

 

[FEENIX]

May not be what you want to here, but that does not tell me anything without knowing a little more information.

The only thing I would do after I have come up with the best group with the bullet and powder combination is to begin experimenting with bullet seating depth off the lands. I follow the method as recommended by Berger. Usually works to achieve best accuracy.

After all that and still not satisfied, then start the process over with a different bullet and powder combination until you fin what the gun likes bes

+1! ... and make sure you have enough bullets, powder, primer, etc., during and after load development.