IMR 4064 for .308

[Brian o 23]

Hey All,
Just working up a load for my .308 rifle using Sierra 2145 165 gr sbt the rifle likes 42 grain grouping at 3/8" at 100 yards.
My question is what would be the best zero distance for hunting and target with the 165gr and possible 175 gr MK HPBT?
Thanks
Brian

 

[1J04]

https://www.snipershide.com/shooting/threads/308-winchester.135/


or, either of the FGMM 168 & 175 SMK's.



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[Jack's Dad]

Unless it's for ARs I always zero at 100 yards.

 

[Brian o 23]

It's my budget precision rifle

 

[ShtrRdy]

Nice rifle! I like to zero at 100 yards. That way any elevation adjustments I make are in the upward direction. Then when you go hunting dial in elevation correction for 200 yds and go from there.

Watch out for the temperature sensitivity of IMR-4064. I had worked up a nice load late last fall and when I shot it this summer it didn't group very well. The warmer temps were enough to increase velocity and not be in the sweet spot any more.

 

[Brian o 23]

Any suggestion for 308 powder that works well in various temperatures..

 

[918v]

Varget

 

[Flyingbullseye]

I currently use 4064 and don't see much if any issues with temp swings. My accuracy load is the same as the Mk13 mod 0/FGGM so its certainly not hot, but summer or winter it groups basically the same. Varget is better for temperature swings but I wouldn't shy away from 4064 if you or anyone is looking for a good easy powder to load with.

 

[Brian o 23]

Can anyone suggwst a good starting load for my 308 using Varget? Sierra manual suggest 38.5 to 43.0 grains for 165 gr sbt.
A load recipe that works well would be great.
My IMR load is
Brass: LC trimmers to 2.005"
Primer : Federal 210M
Powder: IMR 4064 42.0 grs
Bullet: Sierra 2145 165gr SBT
OAL: 2.800"

 

[JMGlasgow]

Brian,

With Varget start at 42 and work up.

I load 43.5 in FC brass with 168 ELD-M bullets and Winchester LR primers.

2.82" overall length

 

[little_scrapper]

Im jumping in this as I am about to open my reloading room and starting with 175 SMK loaded into LC M118 LR brass. From reading and also the Hodgdon load site I was looking at H4895 as its supposed to be temp insensitive. However, as a total newb who has never load a single round yet; I have no clue if I need to be matching certain primers and powders.

Im all ears.