I am reloading 243 wssm for an A-bolt stalker. I am getting good groups using 3 different powders H 414, Varget and H 4831sc. The loading are all at about the midpoint of the range listed for the 95 gr. Berger that I am using. The H 414 cases come out with just the normal sooting on the outside of the neck. The other cases from Varget and H 4831sc come out sooted from neck to base. Even though the groups are good I don't like the sooting. What is causing this? What can I do About it?
Sooting of 243 wssm cases
- Thread starter Dodgedriver
- Start date
I shoot both 243wssm and 25wssm and this is what I found.
On the 243 I use federal brass and the necks were very thick so I started turning them to .0195 and that helped a stop most of the sooting problem but not all.So then I started to anneal after every fireing and that fixed the problem.No matter what load was used sooting did not stop until I annealed each fireing.The 25wssm brass is Winchester and the necks are not as thick so I did not have to turn the necks but still had to anneal.
When annealing I found that the heat had to be centered on the shoulder and let the necks come to temp this helped a bunch on getting the shoulder bump more uniform and with less bounce from the stiff brass these cases are made from.
On the 243 I use federal brass and the necks were very thick so I started turning them to .0195 and that helped a stop most of the sooting problem but not all.So then I started to anneal after every fireing and that fixed the problem.No matter what load was used sooting did not stop until I annealed each fireing.The 25wssm brass is Winchester and the necks are not as thick so I did not have to turn the necks but still had to anneal.
When annealing I found that the heat had to be centered on the shoulder and let the necks come to temp this helped a bunch on getting the shoulder bump more uniform and with less bounce from the stiff brass these cases are made from.
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