help pease

[riggers 2]

right here is my problem how do you measure a round c.o.l ie .243 with out a calliper book says 2.650"

[weejohn 3]

sorry for not being much help but you cant.

[Mr_Logic 5]

Caliper costs about 25 quid, absolutely 100% worth having, made my life a lot easier.

 

In the meantime, trial and error. get a sized case, no primer, seat a bullet until the base of the bullet is at the base of the neck (check this with another bullet alongside it). Try this in your rifle's chamber, and if it fits it will do for now.

 

Keep this as a master, and check the seating of the live rounds against it.

[rondust 0]

Well there is a way to measure it, but it will be close, as close as you can get, without the correct tools and simple too.

 

WARNING - This is okay for a rough check of COL only - use your common sense please.

Get a piece of paper and a ruler with the correct increments, draw a line up and down (this is where your cartridge rim will line up against).

 

Then draw a line at 90deg on the right hand side forming a "T" laying on its side, this line will need to be measured carefully to match 2.650" or 67.31mm. You must measure very carefully!

 

Then at the end of this horizontal line you need another vertical line to form a "H". Your cartridge will be placed on the horizontal bar of the "H" which should be 67.31mm in length.

 

NOW the important bit! The rim of the case is big enough to line up on the left hand vertical line BUT you need to use a "stop" on the right hand vertical (then you know where the projectile tip is, long or short of the line- DON'T USE EYESIGHT), so you need to find something that is square and rigid (90deg from bottom to sides) a simple one is a video cassette, not the outer box but the actual video or even a tool called a "square" or a protractor (stationary shop).

 

If the tip of the projectile is short, the video will cover the vertical line on the right hand side, if long the line will be exposed.

WARNING - This is okay for a rough check of COL only - use your common sense please.

 

I take it that you are reloading and want to know if the COL is correct and not too long? or short?

 

 

 

right here is my problem how do you measure a round c.o.l ie .243 with out a calliper book says 2.650"

[SNAP SHOT 194]

Buy yourself some callipers mate, For the money they are one of the most important tools you could have.......

 

 

Snap.

[riggers 2]

thanks gents got one today many thanks

[dicehorn 38]

thanks gents got one today many thanks

 

For them that followed this thread and need a pair Maplins have them half price under a tenner

 

http://www.maplin.co.uk/Search.aspx?criter...s&source=15