30-06 imr 4064 load development

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working up a load for my rifle today. maybe you guys can chime in. still kinda new at this. 30-06 with 150 grain hornady sst. imr 4064 from 47 to 51.5 grains, fiocchi LRP, oal 3.22 with a very lite crimp just enough to roll the edge in the cannelure. pics to follow

groups of 3 shots at 100 yards

 

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temp is 41°f no wind to peak of. cloudy with high reletive humidity

 

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47 grains of imr 4064. looks like low presure to me. primers slightly raised. maybe 3 or 4k of an inch

 

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47 grain target

 

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second group. 47 .5 grain. primer still slightly raised.

 

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target from 47.5 group

 

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48 grain. 2 primers slightly raised 1 flush

 

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48 grain group

 

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48.5 grain. 2 primers slightly above flush i very slightly flat

 

[MWC1974]

My preferred 30-06 / 150gr SST load is with 58 grains of IMR 4451. That being said, it would be equivalent (in velocity) to 51.5 grains of IMR 4064. According to the Hornady 11th edition the min / max IMR 4064 load for your bullet is 44.7 / 54.5 with 51.5 being right in the middle at 2800fps.

I do have IMR 4064, but only use it in my .308

 

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im uploading this stuff as i test. gives me something to do while waiting for the barrel to cool. just ha a little bit of a scare. rifle didnt fire. after waiting for what seemed like an eternity, i opened the bolt to see and empty chamber. lol! gotta pay more attention.

 

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48.5 grain group

 

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My preferred 30-06 / 150gr SST load is with 58 grains of IMR 4451. That being said, it would be equivalent (in velocity) to 51.5 grains of IMR 4064. According to the Hornady 11th edition the min / max IMR 4064 load for your bullet is 44.7 / 54.5 with 51.5 being right in the middle at 2800fps.

I do have IMR 4064, but only use it in my .308

im hoping to find a decent load for the 30-06 and 243 with this powder. then all i need to buy is one powder from now on. well see how it goes

 

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49 grain group. primers were exactly the same as last group so im not gonna post a pic

 

[Random 8]

I shoot the Speer 150 HC and H150 FMJ at 47 grains, military HXP brass, CCI 34 primer through my Garand and camp rifle. Accuracy is "good enough". It's basically a .300 Savage at that level, and all the horsepower I really need for the application. I've found 4064 to work well, if not optimally, across a range of load densities from mild/borderline reduced to "Holy $%#, need to back off that a fuzz"

Shooting that SST, I think you'll prefer the on-deer performance better around 47-49. If you wish to run higher, use a regular Hornady IL or Speer HC. I found accuracy of the SST to improve with velocity in 2 calibers tested. I also found them far too POOFY on venison above 2400fps impact velocity in both .308 and .284.

 

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49.5 grains

 

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50 grain group

 

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50.5

 

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50.5 grain. primers inconsistant. 2 slightly flat. one looks normal

 

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51 gr shooting high now

 

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51.5 lowered my point of aim to stay on paper.

 

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so it wasnt a great day of shooting. best group, measuring widest distance from center to center of the holes, was 1.31 inches for the 48 grain load. the 47 grain load measured 1.62 but 2 holes touched.


im thinking of ignoring the cannelure and seating 30k off the lands and trying some loads again. maybe from 47-48.5. what do u guys think?

 

[Random 8]

Push them out a little, and use same headstamp brass. Better yet if you do a full prep and sort by weight or same lot and short size brass fired in your rifle. If this is OF random rifle brass, probably explains your inconsistent primers and vertical stringing. Using mixed brass, your groups are about what I'd expect.

 

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well nevermind on the seating depth change. i cant reallynraise them much without loosing too much contact with the case mouth. at the current depth they have exactly .308 inches of bullet in contact with the case mouth.

 

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