kalielkslayer
Member
- Joined
- Feb 6, 2021
- Messages
- 930
I have 2 of these. Ones set up for .223. The other one I adjust for whatever caliber brass I’m trimming.
Today was frustrating!!! Hoping someone opens an “oh crap” moment for me.
I sized and primed 50 pieces of 22-250 brass on my Rockchucker. Then I started trimming. The “trim center” was set for 22-250 since that’s the last thing I did before I pushed it aside 4 months ago to tie flies.
First couple were pretty damn close to the 1.902 I wanted. Then they started to wander, long. I made a couple adjustments trying to get back to 1.902. I ended up cutting some short, like 1.889. After farting with it for 20-30 minutes, 10-12 cases, I tore it apart and used a toothbrush to clean every single chip of brass outta it.
Once I got it back at close to 1.902, I would get one every so often that was completely trimmed, but was at 1.9055, or around there.
I finally resized one. It shrank from 1.905 to 1.9025.
I ended up doing that to 5-6.
I ended up with 43 out of 50 that weee 1.902-1.9035. The other 7 are short.
So, I guess I’m getting some brass “spring back?” Is this normal?
I’m sizing in a Rockchucker with nearly new RCBS dies. Nearly new=25 yo but less tha 700 rounds sized through it. I’m priming with the same tool. I hold the case fully locked down while I get the primer. The case sits in the fully full length sized mode for 10 seconds. If nothing else, I always strive for consistency.
This is 2-3X fired Win brass.
Is it the trimmer?
I’m guessing I’ll hear about annealing.
Or am I being too particular??? I think accepting 1.902-1.9035 was being lenient enough?
Today was frustrating!!! Hoping someone opens an “oh crap” moment for me.
I sized and primed 50 pieces of 22-250 brass on my Rockchucker. Then I started trimming. The “trim center” was set for 22-250 since that’s the last thing I did before I pushed it aside 4 months ago to tie flies.
First couple were pretty damn close to the 1.902 I wanted. Then they started to wander, long. I made a couple adjustments trying to get back to 1.902. I ended up cutting some short, like 1.889. After farting with it for 20-30 minutes, 10-12 cases, I tore it apart and used a toothbrush to clean every single chip of brass outta it.
Once I got it back at close to 1.902, I would get one every so often that was completely trimmed, but was at 1.9055, or around there.
I finally resized one. It shrank from 1.905 to 1.9025.
I ended up doing that to 5-6.
I ended up with 43 out of 50 that weee 1.902-1.9035. The other 7 are short.
So, I guess I’m getting some brass “spring back?” Is this normal?
I’m sizing in a Rockchucker with nearly new RCBS dies. Nearly new=25 yo but less tha 700 rounds sized through it. I’m priming with the same tool. I hold the case fully locked down while I get the primer. The case sits in the fully full length sized mode for 10 seconds. If nothing else, I always strive for consistency.
This is 2-3X fired Win brass.
Is it the trimmer?
I’m guessing I’ll hear about annealing.
Or am I being too particular??? I think accepting 1.902-1.9035 was being lenient enough?