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What company makes "precision" die bushings?

MikeMcCasland

MikeMcCasland

Team Texas F-T/R
Forgive my failing memory, but I seem to recall there being a smaller company that made bushings for standard FL-bushing dies that sized true to their marking. (i.e. if you bought a .335 bushing, it would actually size to .335 etc.)

Does that sound familiar to anyone? If so, can you share the name of the company?
 
Benchrite carbide bushings are very cylindrical and accurate, within a tenth of their printed size. Lead time and cost are tough.

Most of the big names are pretty good, within a half-thou of the printed size. There is one notable brand whose bushings were very poor, off at time by a full thou and with measurable taper error. So I really truly “get” the nature of your question.
 
mikecr said:
I take it you mean for a sizing range within 5thou, and after spring back from an abstract standard of hardness.
Sizing is dynamic from either bushing or mandrel.
Click to expand...

Yep, I understand sizing is dynamic. That said I want bushings that are consistent. It feels like you get way too much variation from the "off the shelf" bushings. Making up numbers here, but I'm tired of sizing with a .267 and getting .268, then dropping down to a .266 and suddenly my brass is coming out .262.

We're not talking mixed firing Remington brass here. Neck turned, amp annealed, sorted by firings, lapua brass.

At $20 per, I don't think they're paying a machinist to pin-gauge most bushings.

I had previously gone through the exercise of buying ~2-3x the number of bushings I needed in a given size to finally get some that sized with relative consistency. but I somehow got some trash in the die and put scratches in the bushing....trying to avoid the whole "buy one and see if it sizes true" exercise again.

dgeesaman - Thank you. Benchrite is who I was thinking of, but kept drawing a blank.
 
Last edited:
Mike - I came across a YouTube video a while back that caught my attention. Compares several bushing brands for run-out, including a brand "Short Action Custom" bushings. No experience with this product.

I don't have any other experience beyond Redding bushings.... I am sure there are other niche bushing makers.

Edit: Looks like Rusty beat me to the punch while I was typing :)
 
MikeMcCasland said:
Yep, I understand sizing is dynamic. That said I want bushings that are consistent. It feels like you get way too much variation from the "off the shelf" bushings. Making up numbers here, but I'm tired of sizing with a .267 and getting .268, then dropping down to a .266 and suddenly my brass is coming out .262.

We're not talking mixed firing Remington brass here. Neck turned, amp annealed, sorted by firings, lapua brass.

At $20 per, I don't think they're paying a machinist to pin-gauge most bushings.

I had previously gone through the exercise of buying ~2-3x the number of bushings I needed in a given size to finally get some that sized with relative consistency. but I somehow got some trash in the die and put scratches in the bushing....trying to avoid the whole "buy one and see if it sizes true" exercise again.

dgeesaman - Thank you. Benchrite is who I was thinking of, but kept drawing a blank.
Click to expand...
Mike I've been reading good reviews of the SAC bushings.
A lil pricey, but it they work as claimed they'll be worth the money
 
so a couple of points...
.precision pin gages is correct , a 3 point bore mic does not tell you it is a straight hole.
precision bushings are HONED to size, not machined. the diff in a steel and a carbide bushing.
 
I don't have many but have had good luck with both redding and wilson. I like the wilson because they are .0005 smaller on one end if you want just a tad more neck tension. Like anything else YMMV ...
 
6bra1k said:
so a couple of points...
.precision pin gages is correct , a 3 point bore mic does not tell you it is a straight hole.
precision bushings are HONED to size, not machined. the diff in a steel and a carbide bushing.
Click to expand...
There’s at least one supplier who needs to get diameter and taper within .001” before we can advance to runout.
 
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