Thread: Extraction problems

Cowboy it will look like the die is sizing up to the belt however due to the spring back in the brass over time your die will not be able to size it back enough.

Unlike non-belted cases, the belt prevents conventional full length dies from traveling far enough down the case. This limits the amount of resizing, and brass is plowed rearward. The brass builds up just above the belt at each reloading, and cases expand. Neck sizing dies don't bump the shoulder back or resize the tapered case wall. The best solution is to full length resize accurately, and use this collet die to reduce case width.

While you are having no problem go with it. That was me for 10 yrs then with the new barrel and tighter chamber all of a sudden closing the bolt became stiff.

Innovative Technologies - Reloading Equipment

Dermastor I shoot 7 mag also and 10-15 reloads is quiet a good run for that brass
Now most metals including some ferrous ones have spring in them once that is gone from constant expansion and contraction
ie Resizing when they expand they will not bounce back a little '' its only thousandths of an inch'' keeping it tight in the chamber
This may not be your problem but it can happen then if you don't trim cases properly or too long they can hammer forward into the lands
when fired jamming the brass tightly in the chamber ''can and does happen'' then comes the AR 2225 I found that in my rifle it was too slow
tending to have higher pressures and that mixed with old brass long brass could form a similar problem that you have
If you have been shooting and had no problems until now the I doubt whether your chamber is rough or dirty enough to jam cases once fired
If your bullets are hard to push into the chamber when loading then it could be bulging of the base of the brass as somebody has already said
and the bush will fix that
The last thing is are you sure it is the case sticking and not your bolt hooking somewhere
Mate be very careful with slow burning powders such as AR 2225 in 7mag as secondary explosions can occur and raise pressure to dangerous levels
Most people I know use AR 2213sc up to 150gr projectiles an AR 2217 up to 180gr
I'm not saying it can't be done with AR 2225 but I would be very careful
cheers