Newbie Help - tight bolt after FL sizing when chambering

[Castle Rock]

Figured it out. It was my Lyman shell holder. Buddy gave me an rcbs and now the bolt closes smooooth

You need to measure a shellholder like this

 

[kkp005]

You need to measure a shellholder like thisView attachment 915994

Told ya I’m a newbie .
I’ll check in there tomorrow! Obviously something is different though because it definitely fixed my issue

 

[Castle Rock]

Actually I got that wrong, it has an influence but the critical measurement is this one
0.125” is the standard

 

[Harvey_NW]

I’ll check in there tomorrow! Obviously something is different though because it definitely fixed my issue

You really should get a comparator/headspace gauge and be measuring, right now you don't know what changed or how much. If you want good results from reloading it's important, it's down to thousandths that make big differences.

 

[SloppyJ]

Actually I got that wrong, it has an influence but the critical measurement is this one
0.125” is the standard View attachment 916002

Its actually all of those measurements. The overall could change and adjust where the brass is located in relationship to the die. However, screwing the die in until there's a cam over point should fix it regardless.

The answer is a comparator set. You're pissing in the wind trying to diagnose without one.

 

[wind gypsy]

Can use a round 9 or 10mm pistol casing as a comparator tool in a pinch.

 

[338edge]

If a fired case chambers easily but a FL sized one chambers with resistance, it's almost always because the case grew from being sized down at the base and the shoulders haven't been bumped back yet.

If the die isn't already maxed out with cam over, screw it down more and size another piece and chamber check, rinse and repeat. Use a new piece each time and once you get your numbers and it's properly set, size all the original test pieces too.

If it is maxed out, then you likely have conflicting tolerances and will need to surface grind some material off a shellholder (which does weaken them), or remove some material from the bottom of the die (my preference on a cheap die).

I go about 1/8 turn at a time setting up sizing dies, it's better to measure with a comparator so you have numbers for future reference, .002-3" bump from resistance on close has been optimal for me.

Yes but I started using Redding competition shell holders they work great for the perfect amount of bump for your chamber.