Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Reloading

Reloading Techniques For Reloading


Reply

300 RUM Leaving Black Soot on Brass

 
LinkBack Thread Tools Display Modes
  #1  
Old 02-18-2014, 09:37 PM
Bronze Member
 
Join Date: Jan 2014
Posts: 67
300 RUM Leaving Black Soot on Brass

Hello. I was hoping someone could help me figure out why my brass is getting soot on it from the neck right on down to the bottom of the brass. The only thing I can figure is that the load isn't hot enough causing the case not to expand enough to seal and that is allowing some burnt powder to sneak by and stick to the brass and this probably is my fault for not loading enough powder. It's a new Remington Sendero 300 RUM. I thought i would be nice to the gun for the first couple of break in shots and load a lighter bullet and a lighter load of powder. I thought i was doing the right thing but probably not. I bought some 180grain ballstic tips and some 200 grain accubonds bullets and Retumbo powder. I had some 150 grain Serria bullets and I loaded them with 95 grains of Retumbo powder. The #7 Nosler Reloading Data book says the lightest load for this weight of a bullet is 98 grain but to be nice to my new gun I thought the first couple of shots i would load a little lighter, then after a couple of shots shoot a coulpe more 150 grain bullets but step up to 98 grains of powder then go ahead and step up to the the 180 grain bullets with 93 grains of Retumbo then load no more or less then the Nosler data says too. I have never swayed off the Nosler Data until now. I know I'm probably gonna get yelled at for swaying off the data book but thought i was doing the right thing just for break in purpose. I was going to load a few more but go ahead and step the powder up to the minimum powder charge of 98 grains of Retumbo with a couple more of the 150 grain bullets then go ahead and load some 180 grain bullets at noslers minimum powder charge for Retumbo and start looking for a recipe that the gun likes. I've probably caused my own problem but wanted to know if that could be the reason for the soot on the brass and thats because the case isn't expanding enough to seal the powder burn. Thanks for your time and help.

baydog
Reply With Quote
  #2  
Old 02-18-2014, 09:43 PM
Bronze Member
 
Join Date: Jan 2014
Posts: 67
Re: 300 RUM Leaving Black Soot on Brass

Quote:
Originally Posted by baydog View Post
hello. I was hoping someone could help me figure out why my brass is getting soot on it from the neck right on down to the bottom of the brass. The only thing i can figure is that the load isn't hot enough causing the case not to expand enough to seal and that is allowing some burnt powder to sneak by and stick to the brass and this probably is my fault for not loading enough powder. It's a new remington sendero 300 rum. I thought i would be nice to the gun for the first couple of break in shots and load a lighter bullet and a lighter load of powder. I thought i was doing the right thing but probably not. I bought some 180grain ballstic tips and some 200 grain accubonds bullets and retumbo powder. I had some 150 grain serria bullets and i loaded them with 95 grains of retumbo powder. The #7 nosler reloading data book says the lightest load for this weight of a bullet is 98 grain but to be nice to my new gun i thought the first couple of shots i would load a little lighter, then after a couple of shots shoot a coulpe more 150 grain bullets but step up to 98 grains of powder then go ahead and step up to the the 180 grain bullets with 93 grains of retumbo then load no more or less then the nosler data says too. I have never swayed off the nosler data until now. I know i'm probably gonna get yelled at for swaying off the data book but thought i was doing the right thing just for break in purpose. I was going to load a few more but go ahead and step the powder up to the minimum powder charge of 98 grains of retumbo with a couple more of the 150 grain bullets then go ahead and load some 180 grain bullets at noslers minimum powder charge for retumbo and start looking for a recipe that the gun likes. I've probably caused my own problem but wanted to know if that could be the reason for the soot on the brass and thats because the case isn't expanding enough to seal the powder burn. Thanks for your time and help.

Baydog
help!
Attached Thumbnails - Click to View Larger
300 RUM Leaving Black Soot on Brass-ncm_0363.jpg  
Reply With Quote
  #3  
Old 02-18-2014, 10:38 PM
Silver Member
 
Join Date: Mar 2011
Location: North Dakota
Posts: 477
Re: 300 RUM Leaving Black Soot on Brass

I couldn't have said it better myself....

"I've probably caused my own problem but wanted to know if that could be the reason for the soot on the brass and thats because the case isn't expanding enough to seal the powder burn."

That's exactly what happened. Too light of a load that didn't expand the case enough to seal the chamber. Toss a couple more grains in the case and let her rip. That should take care of your problems.
Reply With Quote
  #4  
Old 02-19-2014, 12:51 AM
Platinum Member
 
Join Date: May 2012
Location: N.D.
Posts: 2,998
Re: 300 RUM Leaving Black Soot on Brass

light for caliber bullets, slow for caliber powder, below minimum charge for the data book; Heck, I'm surprised you aren't asking how big of a hammer you need to knock the bullet out because it squibbed. Try a slightly faster powder with a bit more bullet weight if you want moderate performance.
Reply With Quote
  #5  
Old 02-19-2014, 02:00 AM
Junior Member
 
Join Date: Nov 2012
Location: Eureka, Montana
Posts: 16
Re: 300 RUM Leaving Black Soot on Brass

You hit it right on, you caused yourself you be a victim. Probably lucky not to stick one in the tube. Use a faster powder for the 150's, Retumbo is great for the heavier bullets. No reason to be below minimum load. Throw some more powder in and go have fun, mark it up as a lesson learned.
Reply With Quote
  #6  
Old 02-19-2014, 11:43 AM
Junior Member
 
Join Date: Jan 2014
Location: central S.C.
Posts: 14
Re: 300 RUM Leaving Black Soot on Brass

I agree that the problem is low pressure and light bullets, but does the brass seem to have a pattern in the soot ?
Reply With Quote
  #7  
Old 02-19-2014, 11:44 AM
Bronze Member
 
Join Date: Jan 2014
Posts: 67
Re: 300 RUM Leaving Black Soot on Brass

Thanks everyone for your help. I will load again and never sway off the reloading data again thats for sure! I'll let you know how it works out and Thanks again..

baydog
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes



All times are GMT -5. The time now is 07:43 PM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC