I am looking to try a load LeHigh Defense 142 Gn Controlled Chaos bullets for my Borden actioned 7x57, 8.5" Twist, 22" barrel length.
There is nothing on the Lehigh website by way of load data, just a statement that if there is no data shown, then there is no data. Really Helpful ... NOT.
I shall be very grateful if anyone here has gone down this rabbit hole for the 7x57 and is able to share experience. I realise the inherent danger of copying load data, but a starter would be much appreciated.
ATB
Peter
You could use similar weight data to start.
Good Plan..... I've got loads for Peregrine 140 Gn that are good, so I'll try something based on that. Start slow and work up. There is no information on optimal seating depths on the Lehigh site, so I'll go with the monolithic 'standard' starting jump at 100 thou off the lands and see what that gives. I'm not optimistic given the paucity of manufacturers data but..... worth a try.
Amazing set of data, I certainly appreciate your time in posting that. I have RL15 and Vit 140 in hand, also some H414 which is now unavailable in UK.
Thanks very much
ATB
Anything in the way of data for the 6mm 85 grain controlled Chaos in the 6mm ARC?
Start a new thread requesting that. Gotta keep the place somewhat organized.
Might want to take a look at Barnes 139 or 140 TSX. BTW there is data for 7-08 & 7mm Magnum on the Lehigh Site. If you cannot find It and want to PM me I can tell you where to find the information. Thanks Daniel
Here is information straight from Lehigh website,I hope I am not the best of gurus.
.284 diameter, 142 grain Controlled Chaos Bullets . I tried to print the data for the 7-08 but failed , like I said not the best at computers but it is there.
CALIBER
7mm Remington Magnum
TEST BARREL LENGTH (INCHES)
24
PROJECTILE (SKU)
05284142CuSP
HIGH VELOCITY LOAD
YES
SUBSONIC LOAD
NO
BULLET LENGTH (INCHES)
1.38
BULLET WEIGHT (GR)
142
BULLET FAMILY
Controlled Chaos
COL (INCHES)
3.28
CASE
Remington
CASE TRIM LENGTH (INCHES)
2.49
TWIST RATE
1:9
PRIMER
Large Rifle
Safety Notes
The task of reloading center fire metallic cartridges should only be undertaken by someone familiar with reloading procedures. One must observe all possible safety precautions and practices in accordance with proper handling of any explosive. We make no warranty of merchantability or fitness on any data given for a particular use. All our loading data is intended solely for use in modern firearms. We have provided recommending starting charges, which should be safe in every modern, correctly manufactured, and maintained firearm of the appropriate caliber.
It is incumbent upon the reloader to progress in a safe manner. Always start a load development with the recommended starting propellant charge. Upon working up the load to higher pressures, never exceed the published recommended maximum charge weight. Variation from the published loading length can and will create dangerous pressures. Watch for any signs of excessive pressure (cartridge case expansion, difficult extraction, flattened or pierced primers, unusual recoil), and immediately STOP shooting if any high-pressure signs are witnessed.
STARTING LOAD MAXIMUM LOAD
POWDER GRAINS VELOCITY GRAINS VELOCITY
IMR 7828 SSC 62.0 3,045 66.0 3,200
IMR 4831 59.0 3,020 63.0 3,165
Hodgdon H4831 64.0 3,025 68.0 3,150
Winchester 760 56.0 2,955 60.0 3,145
Winchester Supreme 780 64.0 3,090 68.0 3,140
IMR 4350 56.0 2,885 60.0 3,120
Accurate 5744 (Reduced Recoil Load) 33.0 2,400 35.0 2,535