does anybody have some load data for the .264 VLD 140gr bullets I am shooting them out of a cz 550 in 6.5X55. I have been told to set them .005 off the lands and somone else said to set them .010 into the lands. the next part is what power and how much thanks for the help. I e-mail berger for some data and have not heard back from them.
If you dont have a overall case length gage cover a bullit with magic marker and just start it into a fired case, you need to put a slight ding in the case mouth to create some friction,easily slide it into the chamber with the bolt, once locked up open the bolt and remove the round paying attention not to slide the bullit in any further, if the bullit stays in the barrel stick a cleaning rod down the muzzel and push it out. Where the scratched portion meets the untouchedthis is max!, you dont want the bullit resting directly on the lands and grooves so deduct .005 and that is max for YOUR rifle. Now you need to make up two dummy rounds, this you will check function with, will they feed from the mag to the chamber and also eject!, if so you can start to reload, if not you need to make it a little shorter.This is one of the many ways to accurizeYOUR rifle, if you are wondering why I caped YOUR, it is because you need to keep those bullits with YOUR rifle, do not let anyone else shoot them in their rifles, their chamber could easily be shorter than yours and create unwanted problems not to mention law suits. As far as work-ups, Ive only used Berger in my .223, I used load work-ups from my Nosler book and just started a little low and worked my way up until I got good accuracy and consistant chronny readings.
I use a ramrod and 2 snug fitting o-rings, put a flat ended screw in the end of the rod to keep bullet tip from going up in the threads giving you a false reading
make sure your bolt is cocked, slide an o-ring up to the handle of the rod, slide it down the barrel, till it hits the bolt face, slide the oring down against the muzzle, put the other o-ring on the rodjust below the first, open bolt insert bullet into the chamber up against the lands, here I use a pencil erasor end first to hold the bullet against the lands, re-insert the rod and when you feel it touch the bullet slide the oring down against the muzzle, now measure the distance from lower side to lower side of the o-rings, this is your cartridge length to the lands with that bullet in your chamber.
Yes most rifles like the vld's against or tucked into the lands, some as much as .012", you just have to see what your rifle likes, however be careful, pressures escalate when the bullet can't jump.
RR
I'm very interested in your technique RR, but I'm having a hard time visualizing it based on your description. Any way you can elaborate more or draw a simple picture or two? I've love to try that and am too cheap to buy a guage.
pretty simple power, take a srew that threads into your ramrod and cut the head off, thread it in finger tight.
slide a snug fitting oring on your rod to the handle, insert rod into muzzle making sure bolt is cocked (so firing pin isn't protruding to effect measurement), slide rod in till it touches the bolt face.
slide the oring down till its against the muzzle, remove rod
slide second o-ring up the rod till just below the first
insert bullet into the chamber and push it against the lands with a pencil erasor
re-insert rod, and gently slide it down till you feel it touch the bullet that your holding into the lands with a pencil
slide second oring down against the muzzle
It should look something like this
I COL I
___[____________]_________> muzzle end
^ o-rings^
Just be sure and measure from the muzzle sides of the o-rings, with handle up measure bottom of bottom o-ring to bottom of top o-ring
RR
RR ..just read your post... measuring to the tip of a bullet will give you incorrect readings if the tip has been damaged.... measurements should be taken from the ogive of a bullet forthe most accuratereadings.... hope this helps...
berger bullets
