Forming 22BR from 6BR - Strange

[JSH]

I used the FL die on mine, no bushing. I had read on different thoughts and ideas for the initial sizing with a bushing.
FL 6BR die, no decap/expander.
Fl 22BR die, no decap/expander.
Run over a mandrel. Skim turned to knock off high spots. Cut back to neck shoulder junction.
This barrel is a no turn chamber for Lapua brass. I did fire a few pieces of as sized brass and some turned. I saw enough better in the turned that I went ahead and did all of them. Had not planned on it, but it’s a one time deal and paid off well in the long run.

Having a REAL hard time talking myself out of a 20BR barrel

 

[AlNyhus]

Having made quite a few 22BR cases using a lot of different methods, the Redding 22BR Body Die (75316) is the way to go.

It reduces the neck diameter all the way to the neck/shoulder junction. From there, you can neck turn if needed for your chamber. For the .254-.255 'no-turn' chambers, the neck diameter ends up at .252 with a bullet seated.

Good shootin'. -Al

 

[gunsandgunsmithing]

Having made quite a few 22BR cases using a lot of different methods, the Redding 22BR Body Die (75316) is the way to go.

It reduces the neck diameter all the way to the neck/shoulder junction. From there, you can neck turn if needed for your chamber. For the .254-.255 'no-turn' chambers, the neck diameter ends up at .252 with a bullet seated.

Good shootin'. -Al

I use a 6br body die to neck 6.5 Grendel brass to 6mm. Works great with the body die that I have. But what I've found is that not all Redding 6be body does have the same diameter neck. It appears the newer ones are a tad bigger but are close enough to get you most of the way there.

Also, most bushing dies wont size all of the neck for the case it's made for. But, because I'm necking down, the shoulder gets longer, allowing all of the neck above the bushing shelf. This is with a Redding type s 6.5 grendel fl bushing die. The hole through the shelf leaves a small area unsized but I can run the bushing down to just kiss the neck shoulder junction enough to prevent any issues with tight clambering of the loaded round. Much simpler than it sounds and it works. I dont load any bullets that seat at or below the n/s junction.

 

[RegionRat]

If you own or can borrow precision pin gages, it is worth the time to gage your dies and bushings and keep a record.

https://deltronic.com/class-x-pin-gages/
(These are not cheap when new, but sell surplus for pennies on the dollar so you have to wait and watch.)

Even expander mandrels have been known to be a little "off" compared to their markings.

An OD is easier to measure than an ID in these sizes, especially if you can reference a decent pin gage first and get calibrated to the fourth decimal point.

Pin gages take a little dexterity and practice, but are worth the trouble to know the diameter of your dies and bushings. Sometimes, the effect of the same die on different batches of brass is different depending on the alloy and condition.