Playing around with the idea to use a 300 NM, increase the the shoulder angle to 35* by pushing the shoulder back, similar to what guys do when forming SLR brass from 243. The reason for this is to utilize the benefits if a improved shoulder and longer neck without increasing the volume. Anyone doing something similar? Any advice and things to incorporate into the reamer design, die(s) for forming and the forming of the brass?
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300NM “SLR” wildcat help please
- Thread starter ZAR LRH
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Deleted member 46119
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Another name for what you are asking about is a 7.62 PRO designed by @Swamplord
Search for threads by Swamplord and you will find it.
Search for threads by Swamplord and you will find it.
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Deleted member 46119
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Search for a 300 Skadi. It is a 40° version of what you are wanting.
Thanks guys!!! Any of you guys with wildcat experience, what would you guys incorporate in a wildcat based on the following criteria: 300NM brass, 35* shoulder and keeping the case volume the same around 103gr H2O. What step would one follow to form brass? Would one require forming dies and if not would one go for bushing or none bushing FL dies?
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You are going to be pushing your neck back about .140". I would want two form dies for that process. The neck will be about .440" long after the push back. I would leave it that length. The lower 1/3 of your neck will be thicker than the top 2/3. You will need to neck turn to correct that issue.
No I don't. A member of Snipers Hide does. That is where I saw it.
I would want two dies because the difference in the neck and body diameter is about .220" and I think that is too much to push back in one step. Three steps would be ideal but since you aren't moving the body, I think you can do it in two.
