9mm 125 gn. hard cast bullet seating depth and load data - Page 2

tkglazie · October 28, 2012, 06:52 PM

glad this thread woke up. Lots of great info here for newbies. Threads like this are one of the things that make this a great forum.

DBCT · July 12, 2014, 09:20 AM

Many thanks- I, too, just started reloading- and still have all my fingers,
only because I just started and haven't shot any of my reloads yet.
However, the SAAMI drawings- particularly the minimums, and the math
used to determine seating depth and space used, are extremely helpful.
In all my reading, I haven't seen this information together in one place.

WESHOOT2 · July 12, 2014, 01:29 PM

The 125g LRN should have an OAL between 1.125" and 1.155"; recommend the 'start' OAL allow a wee bit of 'shoulder' above the case rim.
I use 1.130".

I load (most of my) 125g LRN over:

-5.4g Power Pistol
-5.4g WAP
Mostly.....

tangolima · July 12, 2014, 03:43 PM

When trying to reuse load data of a different bullet, same weight but different ogives, it is the seating depth that matters, not the col.

For cast bullets I generally seat deeper, especially so for bullets with abrupt profiles, such as swc. This helps feeding. This is because cast bullets usually are 0.001" to. 0002" bigger than the bore. It may get hung up trying to squeeze its way into the leade, if it has more than enough to squeeze into.

I love and hate cast bullets. I generally avoid them if I can so that I don't need deal with lead.

-TL

July 12, 2014, 01:29 PM	#28
WESHOOT2 Senior Member Join Date: February 20, 1999 Location: home on the range; Vermont (Caspian country) Posts: 14,324	The 125g LRN should have an OAL between 1.125" and 1.155"; recommend the 'start' OAL allow a wee bit of 'shoulder' above the case rim. I use 1.130". I load (most of my) 125g LRN over: -5.4g Power Pistol -5.4g WAP Mostly..... __________________ . "all my ammo is mostly retired factory ammo"

October 28, 2012, 06:52 PM	#26
tkglazie Senior Member Join Date: December 3, 2011 Posts: 558	glad this thread woke up. Lots of great info here for newbies. Threads like this are one of the things that make this a great forum.

July 12, 2014, 09:20 AM	#27
DBCT Junior Member Join Date: July 13, 2004 Location: Phoenix, AZ Posts: 3	Many thanks- I, too, just started reloading- and still have all my fingers, only because I just started and haven't shot any of my reloads yet. However, the SAAMI drawings- particularly the minimums, and the math used to determine seating depth and space used, are extremely helpful. In all my reading, I haven't seen this information together in one place.

July 12, 2014, 03:43 PM	#29
tangolima Senior Member Join Date: September 28, 2013 Posts: 3,825	When trying to reuse load data of a different bullet, same weight but different ogives, it is the seating depth that matters, not the col. For cast bullets I generally seat deeper, especially so for bullets with abrupt profiles, such as swc. This helps feeding. This is because cast bullets usually are 0.001" to. 0002" bigger than the bore. It may get hung up trying to squeeze its way into the leade, if it has more than enough to squeeze into. I love and hate cast bullets. I generally avoid them if I can so that I don't need deal with lead. -TL