my screw up need options

[tj_farmer]

fixed the problem, thanks

[NugginFutz]

Glad to be of assistance...

[kmon]

Easiest assist of the year

[tj_farmer]

sorry had a new bolt gun that I reloaded some brass to sammi spec and found out its got a tighter chamber in it, so brass was .0035 to .005 long, causing bolt to be from slightly firm to pretty firm on lockdown. local guy called with same caliber, swapped me out some brass/ammo rather then deal with it, was G2G in his gun. for future reference, is their a spec of what is too tight...was going to delete post, but couldn't find where I could

[kmon]

SAAMI specs are available for many calibers on line with chamber drawings and cartridge drawings with spec dimensions.

http://saami.org/specifications_and_information/index.cfm?page=ANSI

For centerfire rifle find and click on the below, a PDF file will download with cartridge and chamber information

•ANSI/SAAMI Z299.4 - Centerfire Rifle - 2015

SAAMI specifications are to a +/- amount that is also in that PDF file.

[tj_farmer]

by spec I meant, .005 or none, etc...on the lack of headspace... I don't think it was enough to crimp the neck of the brass much of any.... the bolt still closed, just was from "some resistance" to "pretty snug" it varied by shell alittle... I was more worried about ejecting the shell afterwards...the chamber was short to sammi standard's by -.0015 according to rcbs precision mic results of the min. my reloads were +.003-.005 of the minimum for caliber... set the f/l die up as manufacturer said, but missed it by that much I suppose

anyway, I made some more to the chamber not sammi and everything is cool, ill get my old brass back after we shoot in the next week or so..
thanks

[JASmith]

BluntForceTrauma created a nice sticky to make the SAAMI and CIP chamber specs easily available: http://www.65grendel.com/forum/showt...endel-Drawings

1) Have you tried factory ammunition in your chamber?

a) If that works, look to your dies -- and make sure the shell holder is from the same manufacturer as your FL die

b) If the factory ammo gives the same symptoms, then start looking at your chamber.

2) Do you or your gunsmith have a go, no-go gage? That will definitively tell you if the chamber body is within spec.

3) How do you know if your brass conforms to the SAAMI spec?

4) You mentioned crimping. Does this mean that the case mouth is where the contact happens? If so, look at your brass length and compare to the specs.

5) Have you looked at live rounds you have chambered and extracted? Marks on the ogive near where the diameter gets to the full 0.264" will tell you that you need to seed the bullet slightly more deeply.

[JASmith]

...SAAMI specifications are to a +/- amount that is also in that PDF file.

Lest there be any confusion, the nominal dimensions for the CARTRIDGE are the MAX and the tolorence indicates how much smaller dimension may be and still satisfy the specifiaction. (I. e., - / 0)

The nominal dimensions for the CHAMBER are the MIN and the tolerances specufy how much larger the chamber may be and still be in spec. (I. e., 0 / +)

The purpose to make sure there is neither interference nor too much slop.

A few reamer makers specify + / - confusing us and showing that they haven't quite captured the spirit of the SAAMI guidelines.

[LRRPF52]

What caliber/cartridge are we talking about in your bolt gun?

[tj_farmer]

thanks

[tj_farmer]

thanks for the info