.300 Whisper, Alternative Powders...for me anyway

[Just Call Me...G]

Howdy Gents,

With the madness of the "Great Panic" ensuing I have found myself at odds regarding powder availability in my area. I am sure that most of you have had this same situation.

Before the madness started I was running low on my preferred powders; Lil Gun, W296 and AA1680. By the time I got around to attempt re-supply, of course none were to be had in my immediate area of Northern Nevada.

Which brings me to this site and hopefully some assistance from my .300 Whisper (WTF) brethren. I did search the site and currently do not own QuickLoad software (this is now on the short list).

My question is, have any of you tried any of the following powders and what result have you had?

H4895
H4831
Reloder 17
IMR SR4759
Accurate Arms #7 (yes, I know JDJ does not recommend it or #5)

At this juncture, I am looking at loading my cast boolits as .30cal. jacketed projectiles have disappeared locally as well.

These will be:
155gr. C.E. Harris Spire Point
200gr. RCBS Silhouette
230gr. Lee TL-309

My rifle specs:
Armalite upper/lower
JT Dist. .300Whisper (actual) barrel (16"), carbine port position (@ .120), MGI adjustable gas tube,
Standard A-2 stock w/ A-2 buffer & rifle buffer spring.

I do use a YHM Phantom 7.62, but forego this for my lead shooting.
I realize it can be done...I have decided that since the YHM can is sealed and not user-maintainable, I will choose to shoot jacketed out of it.

I have been reloading for almost 15 years now and casting for almost 10, all standard disclaimers apply and I am very cautious as to how I approach new loads.

Just looking for some guidance.
The information is greatly appreciated.


Keep The High Ground,


G

[sha-ul]

I use 2400 but that is in a bolt gun.
Now fwiw, I called YHM& they were OK with shooting lead through a phantom, they said to wash it out with mineral spirits from time to time,

[sha-ul]

BTW did you see this thread?
http://www.quarterbore.net/forums/sh...2342#post42342

It has an attachment you might find of use.

[Hoser]

Originally Posted by Just Call Me...G

My question is, have any of you tried any of the following powders and what result have you had?

H4895
H4831
Reloder 17
IMR SR4759
Accurate Arms #7 (yes, I know JDJ does not recommend it or #5)

The top 3 are without a doubt too slow for the 300. AA #7 might be too fast in a semi, not sure about 4759.

Shooting lead through a can is no problem. Just soak it in the "Dip" every once in a while. Dont soak aluminum cans in the dip though.

[MMA10mm]

While SR4759 occupies a nearly-ideal spot on the burn-rate chart for use in the 300, one never sees it listed in loads. My guess is that it is unsuitable because it is a very bulky powder, therefore, you will run out of room in the case before you get worthwhile loads. It would be interesting to experiment with this powder to discredit or verify this theory of mine...

[L1A1Rocker]

Originally Posted by sha-ul

I use 2400 but that is in a bolt gun.
Now fwiw, I called YHM& they were OK with shooting lead through a phantom, they said to wash it out with mineral spirits from time to time,

I've tried that. Great SD and accuracy numbers but it did not cycle my AR. I really like 5744 for sub sonic loading.