Just started to load 300WSM, and I have both RCBS full size dies & Redding neck dies. I have followed all the instructions to the letter. But when I insert the bullet into the primed & powder charged brass, 6 out of 10 come out like if I had scrunched the neck down into the shoulder. The rpoblem starts during the bullet seating process. I'am using imperial wax to lube the brass & I have attached the dies to the RCBS Rockchuker press as per the instructions. I'am at my wits end, already ruined too much good brass, any help would be very greatly appreciated.

Tazfla, I have seen this with several friends reloading for various calibers, and the WSM's seem to be one. Try this---

Back your seating die way out, the die itself, not the seater. Put a dummy case--no powder but with a bullet on the case mouth-- into the press and raise the ram fully. Next, slowly screw in your die until you fell resistance. When you feel the resistance, lower the ram, and screw your die one more turn into the press. Now raise the ram fully again and see if it just starts to seat the bullet into the case--it should. As crazy at it seems, sometomes the die needs to be slightly above the face of the press, but I have typically found that if you h ave the seating stem high enough, your die will be at least right at the point where your shell holder hits it and cams over.

Good luck!

99 times out of a hundred the die is screwed down to far and the die is trying to crimp the bullet. Like Fish says...back out the die and it will go away...unless you are one of those unlucky 1/100 guys!!

quote:

I have followed all the instructions to the letter.

Can you repeat those insrtuction here for us to read?

and make sure the necks are inside chamfered good

i had the same problem it just didn't feel right so i backed the die out and worked it down till i had the legnth i wanted

The seating die is probably hitting the case mouth before the bullet seats all the way.

Unscrew the seating die body and put an empty case in the shell holder and raise the ram all the way.

Screw the seating die body until you feel it touch the empty case. Now unscrew the seating die body 1/2 of a turn and lock it down.

Screw the seating die plug down on a loaded cartridge to set the overall length.

quote:

Originally posted by Fjold:
The seating die is probably hitting the case mouth before the bullet seats all the way.

Unscrew the seating die body and put an empty case in the shell holder and raise the ram all the way.

Screw the seating die body until you feel it touch the empty case. Now unscrew the seating die body 1/2 of a turn and lock it down.

Screw the seating die plug down on a loaded cartridge to set the overall length.

Frank states a better attack plan than me! Without the bullet it's probably easier to feel the case all alone, a similar method, but I recommend Franks over mine now that I've read em both a couple of times!

If the dies are adjusted correctly, then you may need more of a chamfer on the brass.

Also boat tailed bullets help in this regard as well.

Also see if a fired case will accept a bullet being inserted into the neck.

....or you may need this tool:

http://www.leeprecision.com/cgi/catalog/browse.cgi?1222...tml#CaseExpandingDie

Several years ago I made an almost identical tool; it makes seating flat base bullets sooooo smooth.

As always, Thank you all for your invaluable knowledge. I visit many sites in my reloading journeys, but none have the accrued experience & knowledge found here. To answer steve 4102, it states in the instructions to pull press lever to it's upright position, then screw die into press until it comes into contact with the shell holder. Once that occurs, back-off die one full turn. I did that with both the Redding & RCBS dies. I actually bought the RCBS after seeing the problem occuring wiht the Redding die thinking it was a Redding problem. Gents, thanks for all the great help, as soon as it stops raining Cats & Dogs & Cows....well you get the picture, I'll get to my shed & try all your great suggestions.
BTW Fjold , were can I meet the girl in the light blue top ????

I lubed the inside of the bottle necked brass with a little graphite to ease the expander & facilitate seating non boat tail bullets.

Fjold has it right. One other thing,however, make sure that all your cases are trimmed close to the same length. If you set your die with a short case longer cases can give you problems. I've gotten sloppy once or twice and it happened. roger