resizeing 22.wmr necks to 17hmr

[SPARKIE]

somewhere ive seen a post on the net about resizeing necks on .22wmr rimfire ammo where someone resized a neck to .14 and designed a barrel im able to get some cases unfired and wondered if i can get a die to resize the neck to .17 and add some extra powder to make some high performance 17hmr rounds anyone have an idea how many grains of powder a 17.hmr case can hold and how much is in factory ammo im thinking serious performance if i can pull this off

[Graham M]

somewhere ive seen a post on the net about resizeing necks on .22wmr rimfire ammo where someone resized a neck to .14 and designed a barrel im able to get some cases unfired and wondered if i can get a die to resize the neck to .17 and add some extra powder to make some high performance 17hmr rounds anyone have an idea how many grains of powder a 17.hmr case can hold and how much is in factory ammo im thinking serious performance if i can pull this off

I think you are asking for a shed-load of trouble Just because you can load a bit more powder into a case doesn’t mean you are going to get a “super roundâ€. You will get some seriously high pressures though.

 

G.M.

[henry d]

somewhere ive seen a post on the net about resizeing necks on .22wmr rimfire ammo where someone resized a neck to .14

 

I remember something about that, I`ll have to try and look it up again, I don`t think it was 6mmBR, but may have been reloaders nest, give me a day or 2 and I`ll look it up.

I bet that would mess a crows day up big styleeee

[markbivvy]

.17 hmr is quite good as it is. do you really want to spend the rest of your life counting the fingers you dont have, just for a few more fps.?

[davo]

Have a look at www.corbins.com seems to be loads of info on there.

[al4x]

Look on some yank sites, if you want inspiration for some really bad ideas you'll find the lot.

 

for me I like having my face and fingers too much!

[Dunkield]

Sparkie, have a look here and work you way out you may find something?

 

http://www.saubier.com/smallcaliber/which17.html

 

Good luck, sounds interesting anyway

[hawkeye]

I thought it was not possible to reload rimfire :(

[njc110381]

It's not possible to reload rimfire, but an unfired case could be used to make your own rounds (if you think you have too many hands and need to lose one). I think the HMR has about 5.5 grains of powder in it, and I'm sure there's no more for good reason. If you want more power, buy a .223 and save those fingers for reloading that :(

[Windknot]

In order to go from .22 to .17 you'll most likely have to anneal the necks- good luck pulling that off with primed rimfire cases.

 

Handloading rimfire ammo is practiced to some degree "over there" for the BR-50 benchrest events, but this involves primed cases. and the goal is accuracy, not power.

 

There WAS, however, a Johannesburg gunsmith who did manage to reload .22 LR cases when he lived in Poland (?)- bit he admits it was a major PITA to clean and prime the cases, not to mention the fact that rimfire priming compound is not the kind of thing you want lying around the house.

[Graham M]

Too bloody true. In 1973 at the priming sheds at Witton (Eley/IMI) Six people lost their lives and a further fifteen were injured, one seriously, due to a massive explosion of priming compound (this was before “Eley-primeâ€).

Don’t even go there.

G.M.

[Paul223]

Why mess about? wouldn't it be easier to apply for a 141 and get a .17fireball, .17hornet, .17rem? and do the job properly, if you want a .14 again go cf and do the job proper