303, 200 grain cast bullet

loogie33

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I am wondering if anyone has any experience loading these? the bullet diameter that i bought is .313, I have been looking for loads with these bullets using h4350 as i have 2 lbs of this and would like to use it. i found one reciepe using a 220 grain cast bullet and 41 grains of powder. will this be ok for a 200 grain?

any info would be appreciated.

Thanks
 
"...bullet diameter..." Slug the barrel to find out if .313" will be the right diameter, first. A cast bullet should be 1 thou over the barrel diameter.
This data is for a cast 205 grain with a gas check. It'll be better than 220 grain data.

Powder Start Vel Max Vel
Unique 10.0 1510 14.0 1600
2400 19.0 1628 24.0 1893
IMR4227 23.0 1745 27.0 1953
 
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