After nearly 9 years (Jun 10, 2013), I hope that the OP (Last seen Nov 1, 2013) has figured out his load development.
I load for my 7mm Ultra Mag with belowI am about to start the load development process in my STW trying out the 145gr LRXs.
Where have you guys been able to find load data for the LRX?
With the 145gr LRX can I start off using the 150gr TSX/TTSX load data in Barnes Manual?
The powders I have to start working with are
7828ssc
RL-22
RL-25
H-1000
Retumbo
Looking for any input you guys can provide with this bullet.
Thanks!
That's a nice load there, though you could probably push that mono up to 3500+ no problem in the rum.I load for my 7mm Ultra Mag with below
RL25- 90 grains
Barnes 145 LRX bullets
CCI large magnum primers
Once fired Barnes brass
I got an average speed of 3244 fps, below is a 3 shot group shot the past Saturday at 100 yards. 10/14/23
I started my load development with all the component info above at the different powder charges and shot a 3 shot group with all the following charge weights 83, 83.5, 84, 84.5, 85, 85.5, 86, 86.5, 87, 87.5, 88, 88.5. 89, 89.5, 90, 90.5 and 91.
90 grains had the best grouping, I have shot several groups close to the picture above.