<snip> Isn't getting a measurement from the rim to the ogive much more reliable? Especially for accuracy?
ogive to lands... is a better variable to watch.
I am starting to realize that I could care less about everything that is less than o-give diameter as different bullets are different lengths past that point.
Thats it exactly. The ogive is the only the thing that matters and what the jump to the lands is based off of. some bullets like to be closer than others, but its the OAL (to the ogive) that maters, not OAL to the bullet tip (unless you have magazine length restrictions)
This is what I was fishing for, then why does reloading data specs never list the oal to the o-give as well since chambering is just as important as fitting a round in a mag?
This is what I was fishing for, then why does reloading data specs never list the oal to the o-give as well since chambering is just as important as fitting a round in a mag?
Because not everbody understands that, nor do they want to take the time to buy the tools that attach to their calipers to measure properly, let alone finding out what the jump actually is.
standard AOL's are published that way because every rifle and reloader are differant. measuring from base to tip is always going to be the same.
Well,,IG,-NOT really.
I usually do not spring for Hi $ bullets=Bergers and others. I shoot a lot of Hornady, and their Spire Point bullets can vary quite a lot. Some of the Milt. FMJ bullets will have a different length-bullet to bullet.
The SP bullets can throw off your OAL measurement.
I use the Sinclair tool with a bullet that Mic's in at the center of the average of 10 of the bullets of that lot, and set up my seater to .008"-.010" off of the lands.
Seems to work well to me..Bill.
but if you are loading for a clip, oal does make a difference as stated above. bill, i fully understand what you posted about different length bullets from the same box, but ogive to land jump or even touching is much more important than concerning about different length plastic tip bullets. don't you agree.....daryll
In rifle hand loading,
Loaded straight into the bolt action's chamber,
Not using mag size as a variable....
Isn't getting a measurement from the rim to the ogive much more reliable?
Especially for accuracy?