[300whisper_newbie]

300whisper_newbie Wrote:

Curtis,

I used the information from quarterbore's page and the redding 2 die set to form the cases from 221 fireball. (http://www.quarterbore.com/300whisper/brass.html). After the initial forming some of the brass won't be quite right. Make sure you discard any of the ones with cracked necks. Also feel the outside of the neck and case with your fingers, if you feel any deformations discard those as well. Check the inside of the neck for any bright/dull spots or cracks which are starting, these are also signs of weakness.

After visually discarding you'll still have some cases that look lopsided. These will fix themselves with the first firing but have a slightly smaller volume so it is dangerous to load them to the maximum pressure. Don't worry about using filler etc, just load them with rather mild/low pressure loads to ensure you don't ka-boom your rifle. I loaded with 220 gr sierra's and 9.0gr h110 and it worked just fine. If you call the sierra hotline they'll tell you what loads they recommend for their bullets, its a great place to start. Just make sure to reduce the loads they recommend by about 10% the first time for forming your brass.

--Chris