I was asked about loading my 340weatherby

[340wby]

heres the responce,(it might help some of the other guys)
the 340 weatherby is exceptionally easy to load for, the only thing I would  advise is that you should ONLY use federal #215 magmun primers and bullets of 225-grains weight and above when ELK/MOOSE hunting in the standard bullets as the velocity available turns most of the the lighter 180-200 grain bullets into glitter on impact.
the 340 weatherby is NOT a deer rifle, the loads the work well on ELK don,t work well on deer!
if your going to hunt deer the 200 grain hornady bullets work very well, (if you dont mind lost meat) keep in mind that a bullet that drives thru 4 feet of elk on a raking shot and destroys a shoulder then exits is a totally differant bullet than the bullet necessary to punch thru 12 inches of deer lungs
most ELK I shoot are hit with a 250 hornady bullet loaded to about 2850 fps, most fall instantly or run only a short distance, all bullets exit,this is exactly what I like, that same load on deer tends to zip thru,unless bone is hit, the deer almost always run a short distance then fall because the bullet expands slowly on minimal resistance
heres some data

http://www.inextinc.com/H1000340%20Loading%20Data.pdf

http://www.loadyourown.com/loaddata/sresults.asp

http://www.centerfirecentral.com/cgi-bin/database.pl

http://www.norma.cc/nladdtab/340WM.htm

the two best loads Ive found are (work up slowly, they may be too hot for your rifle)
225 hornady bullet,215 fed primer,imr-4831 82 grains
this is for hunting both deer and elk (a good all around load)
250 grain hornady 215 federal primer ,H4831 83 grains (ELK LOAD)

sight in 3.5" high at 100 yards and youll be almost dead on at 300 yards.about 5" low at 350 and 11 inches low at 400, 28 inchs low at 500 yards with the 250 grain and just slightly flatter with the 225 grain

[Rogue Ram]

Hay there 340,

I have a custom Rem 700 in .340 that has been a train wreck for accuracy. Out of curiousity, what rifle do you have, and what loads seem to shoot well?

My rifle was (supposedly) blueprinted, pillar bedded into a lightweight MPI stock, Lilja barrel, Leupold 3.5 X 10, etc., and with various loads only shoots 2" @ 100 yards........and that's a good day. It now has a brake on it........shooting a 7.5 pound gun like this without one is sort of an experience that leaves you looking like a raccoon the next morning.

Later,

RR

[340wby]

I listed my favorite loads above, I have 4 weatherby fibermark rifles and one sako 340 mag synthetic rifle everyone  shoots both those loads into 1"-1.2" three shot groups at 100 yards off a bench rest /sandbags some groups of coures are much smaller but few are even slightly larger
don,t shoot untill the barrel heats a great deaL, I  FIRE THREE QUICK SHOTS (THREE IN  , UNDER 30 SECONDS)FOR A GROUP THEN WAIT UNTILL THE BARREL COOLS TOTALLY BEFORE FIRING AGAIN
it may help for you to know that I load all my own ammo, I bought 300 340 weatherby empty cases in about 1977  and 300 more in about 1988 and Im still useing most of them, the 215 federal primers are mandatory,seating the bullets out so they are as long as they can be and still feed and chamber is also important. I glass bed all my rifles when I buy them, they are free floated from 4 inches forward of the receiver ring, the intire action, front to rear and the mounting bolts, have brass  sleaves that are piller bedded, plus the first four inches of the barrel, are firmly bedded. (I do the bedding myself, useing a mix of BROWNELLS EPOXIE BEDDING and ALUMINUM POWDER to form the bedding compound) its ectremely important that you bed the INTIRE LENGTH OF THE ACTION FROM THE REAR SCREW PILLAR TO 4" FORWARD OF THE RECIEVER RING than free float the barrel forward from that point