It would be best so that you can be sure of good bullet seating tension.
I do. I also tumble new brass. Except for the decapping, I treat all brass the same. New brass I’ll spot check length just to see what it is before separating it into batches. I don’t buy new very often, though. Last new brass I bought was .32S&W from Starline. It was consistent and right around median length.I gave up on finding 357 Magnum range brass and just ordered some Starline. Should I resize it before loading?
I realize the OP is asking specifically about Starline .357 brass but one of the reasons for my routine is that I used to buy Remington and Winchester brass for rifles and it would be all over the place for length and most dimensions.My last new brass. I did resize. But didn't check if they needed trimming. After i shot them. And resized. They were longer than brass i had trimmed before shooting. They functioned well at least.
I didn't until I got burned one time. Now I resize everything.I gave up on finding 357 Magnum range brass and just ordered some Starline. Should I resize it before loading?
And that’s the best reason. It’d be mine too. like chicken soup, can’t hurt.I do. I have no real reason but I just do it anyway.