I am going round and round trying to figure out a "sticking bolt" after firing "SOME" rounds. I had another thread about this but I have still not figured out what is wrong.
I have been to the "explaining headspace" thread and I do understand it. What I don't understand is WHY not all of my rounds cause the bolt to stick after firing.
Some do, and some don't stick.
The barrel is not shot out. Long story about this rifle I will spare you the details.
I will try to explain what I have or have not done;
I started reloading and shooting again in 2012 .... (Last time in 1988)
Old brass I had was all fire-formed brass,
with a mix of times fired. (No records).
98% is Winchester brass ..... visibly ALL in good condition. All of this brass was tumble cleaned, neck sized ONLY, (Lee collet dies), cases trimmed to 1.902".. trim length specs, then flash hole clean-up tool with used.
Bullets: 53 gr Hornady Match HP, pushed by 38.0 grs of H-380. I use a balance beam scale and the weight of powder is all right on.
ALL BELOW are empty brass and the bolt being closed
My newer brass
is new Remington 40 count, and 20 Federal, twice fired-formed.
Here is a test I did. I kept notes on which rounds caused bolt to stick last time out.
On my bench at home I chambered that old brass...... and bolt was harder to close
than the other old brass that did not make bolt stick. These were ALL the used Winchester, fire-formed brass from years back, as explained above.
I then chambered the BRAND NEW
, never fired Remington brass and bolt closed fine.
I then chambered the ONCE fired Remingtons and bolt closed OK, about the same.
I then chambered the TWICE fired Federal and the bolt closed pretty good, but very slightly more effort to close on the Federal brass.
MY QUESTION .... FINALLY,
IF my older brass was fire-formed, and brass trimmed and prepared with care, WHY would some rounds cause the bolt to be hard to close...... and some NOT?
Why would all the new brass chamber and bolt close OK ..... if indeed headspace was in question??
PS. No brass...even older ones .... have no cracks or signs of damage.
Hope someone has an answer because I am getting dizzy "chasing my tail!~