My 338 Norma's Journey!

The story continues! An update on the 338 Norma + McGuire's proto testing. Tried the 250's with a few powders. As expected H1000, N565, and RL26 were the standouts!

89 gr H1000 @ 2915 fps (3 shots)

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90 gr N565 @ 2912 fps (6 shots)

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N565 is a clear winner with the @McGuireBallistics 250 gr CRSF in the 338 Norma. When I went for a 3 shot group, they all overlapped and decided to throw the next 3 in there as well. I dont base loads off of 6 shot groups typically... just for fun on that one!
 
Jeeze! That's a tight group!!

Good comparison on the speeds vs. charge weights and showing the difference switching powders can make

It was pretty surprising! Sometimes a barrel just prefers one over the other despite shooting nearly the exact same speeds in the end.

I saw similar results in this rifle with 300 bergers comparing H1000 vs Retumbo. Shot well with H1000 but drilled with Retumbo.

That's why we test it!! 🤘🏼
 
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