Greeings, I have built up a yugo mauser action in this caliber with the assistance from Jack Hamrick. Since my son is 10 today, and it's his first "centerfire", I have several questions. My load book shows no load for 100 gr. (Sierra HP) so we started with 45 gr IMR 4350 and an oal of 2.95. I know there are some tricks to tell where your bullet actually hits the lands and then again a trick to calculate how far off them you are supposed to seat the bullet. Can someone assist me in this issue?

Many thanks,

Tim Campen

Jack's a good man. Find out from him whether or not he used the standard reamer, or if he cut the throat for a specific bullet. If he used the standard reamer, I doubt you will ever be able to seat the 100 grain bullet to the lands since the length is set to also accommodate the 160 grain bullets.

Barring that, I would use a dummy case, with a blackened bullet in it and chamber it. You will see the lands marks on the bullet. You can get the measurement now as to the OAL for the bullet JAMMED into the lands. That is your starting point. Re-black the bullet, seat it deaper until the marks go away. Measure each time. I used to use the stoney point OAL gauge until I figured it did not give me true measurements. It measures off the shoulder, not from the bolt face, which is the only true measurement.

Btw, you can blacken the bullet with a sharpee or candle.

Tim

Seating into the lands, off the lands, or somewhere in between is a fine-tuning method for a precision rifle and load. I doubt that your Mauser would be able to tell the difference.

Seat the bullets to fit the magazine or to a COL recommended in a good loading manual.

JMHO

Ray

Cheechako,

Thanks for explaining that. I am not an avid reloader, but would like to know the basics. I had a friend tell me about that bullet seating stuff and it sounded like you had to do it to be successful. I don't really want that level of detail yet. Nice groups and self loaded shells are my goal.

Best,

Tim

size a case, seat a bullet long, and chamber it, closing the bolt. if the bullet jams in the throat, knock it out with a cleaning rod, and start over seated 10 thou deeper.

The 100 grn bullet is not very long for a 6.5X55.
Seat it one caliber deep and try it.

Here is what I do with my 6.5Swede, and all my other rifles.
I use a fired case if it holds the bullet snugly enough to not juggle around by hand. I then set the bullet in as shallow as possible. So when I close the bolt on it it seats the bullet. This is where the no play comes in. Then I crimp it in place.
There you have one bullet style saved on that empty case for that specific rifles OAL.

To take it a step farther. You can do this before of after. Your call, but!
Take a peace of eraser just like the ones you used as a kid in high school. You then cut out enough to fill your primer pocket. Super/gorilla glue into pocket. Bam! You now have that bullet type measured for that bullet style in your rifle and made it into a snap-cap!
I figure out how to cut my eraser to size by using a old ink pad then placing the bottom of the case on the eraser. If you cut it too deeply, just trim off after glued in place.

This thread may be helpful.

http://forums.accuratereloadin...=368106055#368106055

Try seating to 2.85" from base to tip. This will give you close to one caliber of bullet shank in the neck and is where I started when I loaded the similar shaped 100gr Nosler Partition in my Swede.

quote:

Originally posted by Cheechako:
Tim

Seating into the lands, off the lands, or somewhere in between is a fine-tuning method for a precision rifle and load. I doubt that your Mauser would be able to tell the difference.

Seat the bullets to fit the magazine or to a COL recommended in a good loading manual.

JMHO

Ray

+1