if you do google search on cartridge there is link to castboolits.....follow nose around and will see link to 30/30 in contender and its an interesting read,the wee wadcutters look like a fun/useful sort of loading..... other than being diferent,it looks like ONLY advantage of the herrit is less fireball out of 10" barrel,so if your barrel is longer than 10" it would be step backwards,you can size off shoulder on 30/30 just the same,and that long neck MUST help start pill out straight.
just my 2 cents after half hour of reading up on it today.
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