so, I have been using the worlds Finest Trimmer for 223 for a while. I set it bellow max length at a roughly the hornaday recommended 1.750 trim length
Well I got a set of RCBS X-dies because trimming is not fun, especially in large batches and this die is supposed to keep your trim length after the first trim.
The die says to set trim length to 0.020 below max and I spent over 2 hours and wasted about 15 casings trying to dial in the trim length and gave up.
Today I had an Idea. Trim some casings and see how consistent it was. I grabbed some range brass and resized it all in the die. picked the shortest casing, at 1.743 and set the tool to that casing and trimmed them 19 of them, 1 got wasted. Here are the results
First test
1.7439 average, Hi 1.7500, Low 1.740, ES 0.0100
I reset and tested again and I'm leaving it there
1.7396 Average, Hi 1.7415, Low 1.738, ES .0035
Not sure why the ES varied so much from the first group to the 2nd. I hope you find this helpful. I knew this trimmer would not be as precise as bench type, but it was faster and I did not anticipate needing to trim to a specific length when I bought it.
First group
1.7455
1.7445
1.7440
1.7445
1.7430
1.7450
1.7440
1.7430
1.7440
1.7450
1.7455
1.7455
1.7440
1.7425
1.7430
1.7415
1.7405
1.7435
1.7410
Well I got a set of RCBS X-dies because trimming is not fun, especially in large batches and this die is supposed to keep your trim length after the first trim.
The die says to set trim length to 0.020 below max and I spent over 2 hours and wasted about 15 casings trying to dial in the trim length and gave up.
Today I had an Idea. Trim some casings and see how consistent it was. I grabbed some range brass and resized it all in the die. picked the shortest casing, at 1.743 and set the tool to that casing and trimmed them 19 of them, 1 got wasted. Here are the results
First test
1.7439 average, Hi 1.7500, Low 1.740, ES 0.0100
I reset and tested again and I'm leaving it there
1.7396 Average, Hi 1.7415, Low 1.738, ES .0035
Not sure why the ES varied so much from the first group to the 2nd. I hope you find this helpful. I knew this trimmer would not be as precise as bench type, but it was faster and I did not anticipate needing to trim to a specific length when I bought it.
First group
1.7455
1.7445
1.7440
1.7445
1.7430
1.7450
1.7440
1.7430
1.7440
1.7450
1.7455
1.7455
1.7440
1.7425
1.7430
1.7415
1.7405
1.7435
1.7410