Need help with cracking brass.

coyotewsm · January 28, 2014, 10:18 PM

I'm loading rounds for my model 70 in 300 WSM. I have been having trouble with the case necks cracking. My load consists of Remington brass, federal gold metal primers, h4350 powder and 150 gr sierra gamekings boat tails. Any ideas?

9miller · January 28, 2014, 11:04 PM

At what point are they cracking? Upon shooting? Sizing? Seating?
Additional information is needed. Also, how many times has the brass been loaded? And Also How Hot Of A Load Are You using? A lot of factors can influence the integrity of the brass.

coyotewsm · January 29, 2014, 02:17 PM

They are cracking during firing. I have reloaded the 4 times but some of them cracked after the second time. My load is on the hotter side of the range given by Speer but not the max load.

243winxb · January 29, 2014, 08:12 PM

Photo please

reloader28 · January 30, 2014, 09:09 AM

Anneal your brass.

Jim243 · January 30, 2014, 09:26 AM

You need better brass and to anneal.

http://www.lapua.com/en/products/reloading

Jim

January 28, 2014, 10:18 PM	#1
coyotewsm Senior Member Join Date: January 27, 2014 Posts: 242	Need help with cracking brass. I'm loading rounds for my model 70 in 300 WSM. I have been having trouble with the case necks cracking. My load consists of Remington brass, federal gold metal primers, h4350 powder and 150 gr sierra gamekings boat tails. Any ideas?

January 30, 2014, 09:26 AM	#6
Jim243 Senior Member Join Date: January 5, 2009 Location: Just off Route 66 Posts: 5,067	You need better brass and to anneal. http://www.lapua.com/en/products/reloading Jim __________________ Si vis pacem, para bellum

January 28, 2014, 11:04 PM	#2
9miller Senior Member Join Date: January 11, 2012 Location: Myrtle Beach, SC Posts: 169	At what point are they cracking? Upon shooting? Sizing? Seating? Additional information is needed. Also, how many times has the brass been loaded? And Also How Hot Of A Load Are You using? A lot of factors can influence the integrity of the brass.

January 29, 2014, 02:17 PM	#3
coyotewsm Senior Member Join Date: January 27, 2014 Posts: 242	They are cracking during firing. I have reloaded the 4 times but some of them cracked after the second time. My load is on the hotter side of the range given by Speer but not the max load.

January 29, 2014, 08:12 PM	#4
243winxb Senior Member Join Date: July 26, 2011 Location: USA Posts: 1,730	Photo please

January 30, 2014, 09:09 AM	#5
reloader28 Senior Member Join Date: October 13, 2009 Location: nw wyoming Posts: 1,061	Anneal your brass.