Seems I got a problem.

[headhunter1111]

My bad Canus, you are quite correct. Thanks for calling me out on that one. Actually i just went out to verify all the info there was correct and I used CCI 200 primers in this load, Not Remingtons.
Allen, checked scale while i was out there and it is spot on. Verified by digital scale as well. all is working as it should be.

 

[headhunter1111]

fixed this typo in the original post.

 

[RonAKA]

Until you get things sorted out I would weigh every charge. One thing puzzles me though. How are you loading if the expander shaft and ball is deformed? And forgive me if this has been asked before. What is your fired neck OD compared to a loaded round OD?

And not really wanting to raise this one, but are you cleaning the lube off your cases after sizing? While my belief is that modern guns are designed to handle cases with some lube on them, it does increase bolt thrust.

 

[headhunter1111]

I loaded these rounds before I was made aware of the condition of said expander. I will have to get back with you on OD measurements. I lube only every 5th round and yes i do wipe those off.

 

[Larryh128]

Not withstanding a "too light charge" , it really sounds like you have a headspace issue. I would question how your dies had been adjusted in your absence and what was done to lead to an expander ball being messed up. .006 will rattle a case around & back with some serious thrust. Try taking a fired case from that chamber , neck size only & see what happens. Been a lot of rifles set in rests & fired with a string. I personally think that your dies got mis-adjusted & you're cranking the shoulder too far back.

 

[hoverp]

How does it handle Factory rounds....

 

[headhunter1111]

Larry, I'm agreeing with the headspace problem idea. Again, I don't think it's the dies, as I readjusted them, however I won't entirely dismiss this possibility yet. I'm going to order the gauges, see how the rifle is head spaced, and try 'er again.
MT- have not tried it with factory loads yet. I'd rather check the headspace first just to make sure it's the ammo and not the rifle. Then I'll put some more rounds through it. Too much of a risk in it for me to test more loads at this point.

 

[BoydAllen]

I ran into a case just like this, a long time ago. The problem turned out to be a huge carbon ring right in front of the chamber. The fellow had to use a lot of elbow grease and IOSSO on a nylon brush to remove it. Once he had it out, pressures returned to normal. I just love it when some guy shows me a couple of cases that are destroyed as he is throwing another into the chamber, from the same batch, to try again. Luckily, the rifle was a very sturdy single shot falling block. Even so, I insisted that he stop and investigate, before he found out what a total case failure looked like. If I remember correctly, he was shooting 3031 in a rifle that had a lot of rounds through it when he got it, with the same powder.

 

[wapiti25]

Rough bores can raise the pressures. The 22-250 is hard on barrels. You mention that you bought the rifle from someone, you don't know how many rounds have been fired. A look with a bore scope would be a good thing. I use IMR 4895 in my 22-250 behind 55gr bullets. Ruger has let guns out that were not the greatest, I know of new rifle that the bolt would not go into the reciever, another that you could not rechamber the brass that you just fired. In all fairness all of the company's have screwed up.

 

[headhunter1111]

All right fellas, head space was good. Cause for excessive pressure was a series of bad calls. First, barrel was dirty, second throat is a little worn, third as has been said the light load of fast powder and somewhat long jump to the lands contributed, screwed up expander button, and probably most importantly,
NEVER LOAN YOUR DIES TO ANYONE! INCLUDING PEOPLE YOU THINK ARE RESPONSIBLE RELOADERS!
Turns out my seating die got screwed in to a CRIMP by my old man.... Good gosh. Problems have now been fixed. Shoots well with 50 gr bullets and a heavy dose of 4895. Thanks for the imput everybody.
Kade

 

[4xforfun]

I loaded these rounds before I was made aware of the condition of said expander. I will have to get back with you on OD measurements. I lube only every 5th round and yes i do wipe those off.

Glad to here you got things figured out, but...This statment.."I wipe those off" has me thinking.

Question, do you clean ALL of your brass, or only every 5th round, which would be the "those" in your initial statement.

 

[headhunter1111]

Each and every one 4x. As well as brushing out the case mouths.