SEE when using cast bullets and reduced loads of slow powders?

win94oz · August 1, 2014, 06:20 AM

Hi guys, I have read that there is a chance of experiencing a SEE when using a reduced load of a slow powder and a jacketed bullet!

Is this the case for cast bullets, logic says to me being much softer that a cast bullet is unlikely to get stuck and result in a pressure spike!

I am however still uneasy about loading up with a slow power in reduced loads!

I am trying to develop an accurate high velocity load in the 6.5x55 Swedish Mauser I have done some experimenting with H4895 and Varget with a 140 grain cast bullet. I have got them to go quite fast and maintained accuracy.

I think however a slower push is needed, H4350 and H4831 would fit that bill!

Loads for a 140 grain jacketed bullet are 39-44 of H4350, would a 33-38 grain loads for a cast bullet be chasing a see? Would it be better to load at say 30-33 with a filler?

Balduran · August 1, 2014, 07:11 AM

everything else being equal a cast bullet will have less friction than a copper jacketed bullet meaning more velocity at less pressure.

An open base on a jacketed bullet may also provide a danger of just the jacket separating from the core of the bullet, in some cases and can be left behind in the barrel with low pressure loads.

Marco Califo · August 2, 2014, 08:32 PM

What you mean by SEE?
That term is not defined in the site acronym list.

Slow powder loads for 6.5x55 are here:
http://www.castpics.net/LoadData/Sur...es/6pt5x55.htm

pathdoc · August 2, 2014, 10:09 PM

SEE = basically a blowup.

kilimanjaro · August 2, 2014, 11:59 PM

SEE=BAP?

totaldla · August 3, 2014, 12:47 AM

YES YOU WILL DIE A GRUESOME DEATH. THE WORLD WILL END. AAAAIIIIEEEEEE!

Seriously, there ain't no such thing. Only micro-minds believe in it - don't be one.

LE-28 · August 3, 2014, 06:59 AM

Read this thread from this forum.

http://thefiringline.com/forums/show...vent+explosion

August 1, 2014, 06:20 AM	#1
win94oz Member Join Date: July 31, 2014 Posts: 24	SEE when using cast bullets and reduced loads of slow powders? Hi guys, I have read that there is a chance of experiencing a SEE when using a reduced load of a slow powder and a jacketed bullet! Is this the case for cast bullets, logic says to me being much softer that a cast bullet is unlikely to get stuck and result in a pressure spike! I am however still uneasy about loading up with a slow power in reduced loads! I am trying to develop an accurate high velocity load in the 6.5x55 Swedish Mauser I have done some experimenting with H4895 and Varget with a 140 grain cast bullet. I have got them to go quite fast and maintained accuracy. I think however a slower push is needed, H4350 and H4831 would fit that bill! Loads for a 140 grain jacketed bullet are 39-44 of H4350, would a 33-38 grain loads for a cast bullet be chasing a see? Would it be better to load at say 30-33 with a filler? Last edited by win94oz; August 1, 2014 at 07:04 AM.

August 2, 2014, 08:32 PM	#3
Marco Califo Senior Member Join Date: April 4, 2011 Location: LA (Greater Los Angeles Area) Posts: 2,722	I can't SEE! What you mean by SEE? That term is not defined in the site acronym list. Slow powder loads for 6.5x55 are here: http://www.castpics.net/LoadData/Sur...es/6pt5x55.htm __________________ ............

August 3, 2014, 12:47 AM	#6
totaldla Senior Member Join Date: August 11, 2009 Location: SW Idaho Posts: 1,499	YES YOU WILL DIE A GRUESOME DEATH. THE WORLD WILL END. AAAAIIIIEEEEEE! Seriously, there ain't no such thing. Only micro-minds believe in it - don't be one. __________________ Keltec P15 at 1200 rounds

August 1, 2014, 07:11 AM	#2
Balduran Junior Member Join Date: May 6, 2014 Location: Alberta Posts: 12	everything else being equal a cast bullet will have less friction than a copper jacketed bullet meaning more velocity at less pressure. An open base on a jacketed bullet may also provide a danger of just the jacket separating from the core of the bullet, in some cases and can be left behind in the barrel with low pressure loads.

August 2, 2014, 10:09 PM	#4
pathdoc Senior Member Join Date: February 12, 2013 Posts: 669	SEE = basically a blowup.

August 2, 2014, 11:59 PM	#5
kilimanjaro Senior Member Join Date: November 23, 2009 Posts: 3,963	SEE=BAP?

August 3, 2014, 06:59 AM	#7
LE-28 Senior Member Join Date: September 24, 2012 Location: North Carolina Posts: 759	Read this thread from this forum. http://thefiringline.com/forums/show...vent+explosion