Hornady Lock-n-load conversion kit?

[Trakker]

Again spring back may be the limiting factor here. Especially with a pull through expander.


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[divingin]

Has anyone into precision loading who's tried the Hornady Lock-N-Load die conversion set-up run into consistency issues in connection with shoulder bumping cases etc.? When full length resizing and bumping the shoulders, the repeatability and consistency factor has come under question, particularly when I noticed the die and bushing moving under pressure... I recognize the Hornady set-up is convenient, but I'm wondering if anyone else has encountered this problem/issue?

Sizing will force the die (and bushing) against the upper limit of travel. Any play will be taken out as soon as the sizing starts. I run the LNL bushings in my single stage for bumping shoulders and have noticed no problems.

As mentioned, consistent and ample lube is a must. If using an expander plug, lubing inside the case mouth will probably help (reducing expander drag), as will pausing a second or two at the top of the ram stroke (allowing the brass to "set" at the desired length.)

If you're looking for precision, you will probably get a little more consistency by sizing and decapping (assuming you're doing them oin one step) without using the expanding ball, and expanding as a separate step using a mandrel. Expander balls can do all kinds of wonky stuff to brass.