300wm 199hh r26 h1000 n570

[eoperator]

As promised load results from 199 hammers,

300win 26" 1:8 long throat (not sammi)
3.685oal .035 off
peterson long brass new barrel
215m's
labradar
60deg temp

r26
71gr 2855. 72 2905
73 2945. 74 3025
75 3026. 76 3075
77 3156. 78 3190 light ejector

h-1000
75 2940. 76 2977
77 2985. 78 3040
79 3066. 80 3113 full case

n570
75 2822. 76 2940
77 2925. 78 2988
79 3055. 80 3068
81 3094 full case
Best initial load accuracy goes to n570.
300prc ain't got much on this old "whinny".

Don't try these loads with sammi chamber please!

 

[Johnc427]

Wow, this is great. I've been using H1000 with good results but I've got a pile of RL26 and N570. May have to try those.

Long throat 300 win mags run with the best of them.

Thanks!

 

[JakeSCH]

Nice! Those are my velocities with the 181 HH out of 24" barrel. I am looking at making a very similar build, but am contemplating a 1-7" twist for a bit of extra terminal performance of the hammers.

 

[eoperator]

I have never seen a node like this 3030-3060fps with 3 different powders and the same poi, I like it