UPDATE! IMR4350 vs H4350 in my 6 Creed. Velocity figures.

[JGorski]

Ladies & Gents, After my 2nd session of shooting my newest LRI 6 Creed, I got to compare both of these powder with a higher charge of 42grs each. On my first outing I thought I was getting similar speeds with 41.6grs. but when I went back to my notes that wasn't the case so much. What I found out this time was it seems like IMR is a bit slower powder and needs more powder to achieve the same velocities as H4350, here are my results with 105 Noslers, Tula primers, Hornady brass:

IMR4350:
1) 2982
2) 2989
3) 2976
4) 2962
5) 2996
avg-2981
ES- 34
SD-13

H4350:
1) 3030
2) 3037
3) 3037
4) 3030
5) 3086
avg-3044
ES-56
SD-23

I've since loaded more of the 42grs of H4350 and added .3grs of the IMR4350 to my loads, again with the Noslers, also loaded the 8 VLD Hunting test bullets I got from Berger with 42.1grs H4350 and 41.8grs of Hybrid 100V which gave very consistent speeds as well. More on that powder when I retest it with the BN coated DTACs. The iMR vs H4350 test was using a 26" tube.
Here are 4 of the VLDs I loaded yesterday with 100V. These are seated to just kiss the lands.

 

[DIBBS]

Interesting info. I thought I had read on here that in the x47's, ~1 grain less IMR 4350 would give a comparable velocity to H4350. I may try the IMR when my stash of H4350 runs out, as I have about 6lbs left in an 8lb container. Thanks for sharing your results.

 

[JGorski]

41.8grs of Hybrid 100V is even faster than 42grs H4350 and very good SDs to boot.