Originally Posted by roundoak
GCF

It is interesting that you have good luck with H414...another recent thread poster said he quit the 4350 and went exclusively to H414 with several bullet weights.

Do you find H414 works well in the spectrum of .284 bullet weights?

I have always used IMR 4350, H4350 so just curious.


Roundoak -
I got started w/ H414, because Nosler 5th listed it as the most accurate powder for their 140 grain bullets, in 7x57. 45.0 was their best overall load. Most accurate load for their 140's w/ IMR4350 was listed as 49.0.

For 7x57, they listed IMR4350 as the best for their 150 grain bullets, w/ 44.0 grains as the most accurate over all.

My results pretty much mirror Nosler's published data.

I was able to chrono 1 load: Hrdy 140SP / H414 45.0 / RP brass, neck sized / Fed210. It ran 2,680 in my 22" bbl No.1, which was a little higher then Nosler's data. The 46.0 load was substantially more accurate (0.75" at 100), but I was not able to chrono it.

Overall, I like H414 in my rifle, & could probably use it happily for 140 grain bullets for a long time. I lot of guys use it exclusively in 7x57.

I think that IMR4350 may be a better choice for heavier bullets. 44.0 works great w/ the Hrdy 154SP.

My top (full to neck base)load w/ 140BT's & IMR4350 is 48.5, & it seemed a tab warm. As such I'm curious about RL17. I've heard it equals the burn rate equal to 4350, has a denser weight / bulk ratio, & produces higher velocity - w/ lower pressure. Sounds like the magic dust...

If I can provide additional detail, just let me know - Gary

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"Sometimes you make eight - Sometimes you hit dirt!"
Regards - GCF