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psychobily · November 2, 2010, 05:58 AM

CAUTION: The following post includes loading data beyond currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assume any liability for any damage or injury resulting from use of this information.

I went to the range yesterdee and came up with some data. SL1 I also weighed the brass like you said you needed for your software.

Fired brass weight is 257.1 gr
Fired brass w/water is 355.8 gr
bullet length is 1.196"
berger VLD, 110 grain hunting bullets

I'm loading .050" off of the lands as well as I've been told "kissing the lands" can possibly cause higher pressures.

Bullet Berger VLD
Bullet Weight 110 grs
Powder Reloader 25
Powder WT (see below data)
Primer Fed GM210M (yes, large rifle NOT mag)
Brass Make Remington
Barrel Length 26 (inches)
C.O.L 3.609 (inches)
Velocity (see data below) fps
Group 100 yds (see data below) (inches)
Gun Info .257 STW Custom Rem 700 1 in 9" twist shilen
Comment This is data I've worked up to ***CAUTION***

1st round 77.5 gr ~ 3470; 3501; 3508fps
2nd round 78.0gr ~ 3560; 3565; 3565fps (3/4" group)
3rd round 78.5gr ~ 3569; 3560; 3567fps
4th round 79.5gr ~ 3654; 3654; 3650fps
5th round 79.8gr ~ 0000; 3670; 3670fps
6th round 80.2gr ~ 3688; 3632; 3669fps (5/8" group)

I'm close with that 80.2gr but I want to go up a couple of tenths and down to try and bring it in tighter. SL1 I would like to know what your software says for MAX. The brass didn't show any signs of over pressure that I could see.... It sure is a sweet shooter.

November 2, 2010, 05:58 AM	#14
psychobily Member Join Date: September 25, 2010 Location: East Texas Posts: 82	.257 STW CAUTION: The following post includes loading data beyond currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The Firing Line, nor the staff of TFL assume any liability for any damage or injury resulting from use of this information. I went to the range yesterdee and came up with some data. SL1 I also weighed the brass like you said you needed for your software. Fired brass weight is 257.1 gr Fired brass w/water is 355.8 gr bullet length is 1.196" berger VLD, 110 grain hunting bullets I'm loading .050" off of the lands as well as I've been told "kissing the lands" can possibly cause higher pressures. Bullet Berger VLD Bullet Weight 110 grs Powder Reloader 25 Powder WT (see below data) Primer Fed GM210M (yes, large rifle NOT mag) Brass Make Remington Barrel Length 26 (inches) C.O.L 3.609 (inches) Velocity (see data below) fps Group 100 yds (see data below) (inches) Gun Info .257 STW Custom Rem 700 1 in 9" twist shilen Comment This is data I've worked up to *CAUTION* 1st round 77.5 gr ~ 3470; 3501; 3508fps 2nd round 78.0gr ~ 3560; 3565; 3565fps (3/4" group) 3rd round 78.5gr ~ 3569; 3560; 3567fps 4th round 79.5gr ~ 3654; 3654; 3650fps 5th round 79.8gr ~ 0000; 3670; 3670fps 6th round 80.2gr ~ 3688; 3632; 3669fps (5/8" group) I'm close with that 80.2gr but I want to go up a couple of tenths and down to try and bring it in tighter. SL1 I would like to know what your software says for MAX. The brass didn't show any signs of over pressure that I could see.... It sure is a sweet shooter.