View Full Version : 300 Whisper loads
CENTEX BILL
11-26-2009, 02:42 PM
I am building a 300 Whisper on a 722 Remington action to use as a cast bullet shooter. I should have it in a week. I have the reform die ,223 cases and plenty of 30 cal cast booltis of different sizes.
Problem is what loads do I use. I have Red Dot, Unique, 700x, H322, 4895,Varget and H2227.
Can I get some loads out these powders that will give 1600fps plus or minus?
Thanks much and Happy Thanksgiving.
Centex Bill
txpete
11-26-2009, 03:59 PM
bill I found that whisper brass.pm if you want it.
pete
legend
11-26-2009, 04:13 PM
CENTEX BILL,
I am quoting out of the abcs of reloading book,5th edition
with 221 fireball cases,j-word bullets, h4227 powder
220 gr 9.2=1006 fps
250 gr 9.2gr=1011fps
250 gr 9.4=1027fps
as you see these are all subsonic in a 16.5 in bbl.
none of the other powders you mention are listed as being used.
with 125 nosler ballistic tip 20.6 gr of h-110 produced 2333fps out of same bbl,and is supersonic.
remington 7 1/2 primers were used in all loading
i hope you can find some use of this and translate to cast boolits.
the 300 whisper is based on the 30carbine brass,if yours has a sholder it would probably be called a .30 whisper acording to this article by j.d. jones
i hope it helps
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