Playing with the new stuff

[Alderman]

LGS had three of the new IMR powders. As I shoot my mid range calibers more than the small stuff and the magnums I decided to try a pound of 4451.
I loaded up some rounds for the 257 Roberts and 30.06.

I fed the powder through the Redding powder measure and weighed each load on a balance beam scale. While most of the 257 Roberts loads were within a couple tenths of a grain, the 30.06 showed much more variation for the increased volume. Even with the 257 Roberts amount there was an occasional load that went off by several tenths. I was expecting a finer sized grain with the new powders. Still, it's not that big of a hassle to weigh each rifle load when not loading more than 20 rounds at a time.

When it quits raining long enough I'm going to do some shooting

165 Grain Sierra SPBT for the 06. 115 Grain Nosler Partitions for the 257

 

[JD338]

Good luck with your load development.

JD338

 

[Vince]

I've got 8 pounds of the same and I'm really looking forward to working up a couple of 30-06 rifles, .338 Win Mag, and a 6.5x284 with that powder.

Sent from my SGH-M919 using Tapatalk

 

[Alderman]

Well the first trip with 30.06 was disappointing. Suggested OAL was 3.300.
I think I will try going to 3.340 and see if it gets better.

 

[Vince]

Alderman,

I'm sorry to hear that it wasn't the bee's knees for you mate.
As you know every rifle barrel is a creature unto itself so while yours may not like it mine might. The only way to tell is to load some up and shoot it.

Vince

Sent from my SGH-M919 using Tapatalk

 

[Alderman]

The 257 results.


I repeated the bullets for the 06 to 3.340 OAL. The first two were in the circle.

 

[SJB358]

Looking decent though. Seems like it wouldn't take much to tune up the load.