A Quieter Deer Rifle?

[Bigfoot]

Thanks Murmur,

The late football game Sunday night was lame so I tried a few things in my Load From a Disc software instead. I found that the light for caliber bullets gave me the best bore/case ratios, which surprised me. The best light for caliber bullets are in .30 cal so I modeled a 30PPC case (necked up small hole Lapua 6PPC brass) with the 125 gr Ballistic Tip. In a 20" barrel 26gr of H110, A2400, AR2205 or Lil Gun (all pretty fast rifle powders) gives me 2500fps and a bore/case ratio of 13.5/1. At impact velocities of 2500-1800fps apparantly this is a good deer bullet and it's just over 8" low at 300yd.

Now my software picks the best powders for me and doesn't allow me to play around with pistol powder like the author did in the 'Coyote Rifle' article. So I'd like to know what powders you guys use and if I'd be better served with different case sizes and even faster burning powders.

[Murmur]

Most whisper users are getting 2300-2400fps from 125gr BT from their 20" barrels. Your 30PPC sounds like it should work well as the reports given from hunters using this bullets at whisper speeds has been very good. Time permitting I'd like to experiment some more with these bullets.

[Murmur]

Well bigfoot since no one has any information to help looks like you might just have to go right ahead and make one. Failing that you could take the proven quiet route and try a 300 whisper. You still should push your 125gr BT at 2,400 fps from that tiny little case.

[Bigfoot]

I'm not surprised that this post might sit here awhile, not many people have experience using pistol powders in a rifle cartridge like the "Quieter Coyote Rifle" article did. I read the reloading threads in the Whisper section and everybody seems to be using the fast rifle powders even for subsonic.

[ghostsix]

Supressers are a good thing.
Not only do they save your ears but, in prone, they keep the dust out of your face. They are also flash suppressors in low light.