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Anyone got a Sherman shortmag?
Posted: Thu May 03, 2018 6:35 pm
by Teepee
Just wondering if anyone has come across the Sherman cartridge. Based of the rem SAUM case. Calibres from 22 up to 375.
Anyone hear of them or know of anyone that has one chambered.
Re: Anyone got a Sherman shortmag?
Posted: Thu May 03, 2018 8:53 pm
by Camel
Nope, never heard of them, but when you find out about them, put up the info for us please.
Re: Anyone got a Sherman shortmag?
Posted: Fri May 04, 2018 9:15 am
by WARDY91
I’ve got my own designed case that’s very similar but was designed prior to these coming about.
Re: Anyone got a Sherman shortmag?
Posted: Fri May 04, 2018 7:06 pm
by Teepee
So, wardy91,can you give me details of yours please.
Do you still have the reamer? Or can advise who did your chamber for you.
Thanks
Tim
Re: Anyone got a Sherman shortmag?
Posted: Sat May 05, 2018 7:13 am
by Branxhunter
Teepee wrote: ↑Thu May 03, 2018 6:35 pm
Just wondering if anyone has come across the Sherman cartridge. Based of the rem SAUM case. Calibres from 22 up to 375.
Anyone hear of them or know of anyone that has one chambered.
Sounds like something Rod Davies would know about.
Marcus
Re: Anyone got a Sherman shortmag?
Posted: Mon May 07, 2018 10:55 pm
by WARDY91
Teepee wrote: ↑Fri May 04, 2018 7:06 pm
So, wardy91,can you give me details of yours please.
Do you still have the reamer? Or can advise who did your chamber for you.
Thanks
Tim
It’s about 4gr smaller than a standard saum achieves the same velocity with less powder and less throat erosion. The reamer is mine and was originally spec’s to use wsm brass but I’ve now switched to saum as it’s easier to form. Dave kerr in Perth built both of mine and they hammer. The photo is my f class rifle at 800m. The x is 127mm in diameter.
Re: Anyone got a Sherman shortmag?
Posted: Tue May 08, 2018 9:43 pm
by Teepee
Many thanks wardy91,
Do you need to neck turn for these cases? And fire form?
Or is it just a simple process of making brass from saum brass run through a form die?what projectile were you using and rough idea of velocity. Very impressive shooting I must say!
And a question with the reamer - do you still have it and would you be interested in selling this. If not, you ordered it to your specs but if I wanted to get one made, would I be able to get one done easily and who would I go through?
Many questions I know, but hope you don't mind sharing your knowledge.
Cheers
Re: Anyone got a Sherman shortmag?
Posted: Wed May 09, 2018 9:52 am
by 204 Hunter
Hi All,
I have found the standard 7 SAUM to be extremely accurate and for me the modified versions aren't noticeably more accurate, more to do with tuning and barrel management.
At the SA queens last week Rod Davies shot a 60:10 at 300m and I got lucky with the same at 700m all with the standard SAUM.
Reamers, dies etc are readily available as is load data.
But if you have an itch that just needs scratching- go for it
Re: Anyone got a Sherman shortmag?
Posted: Wed May 09, 2018 8:54 pm
by WARDY91
Teepee wrote: ↑Tue May 08, 2018 9:43 pm
Many thanks wardy91,
Do you need to neck turn for these cases? And fire form?
Or is it just a simple process of making brass from saum brass run through a form die?what projectile were you using and rough idea of velocity. Very impressive shooting I must say!
And a question with the reamer - do you still have it and would you be interested in selling this. If not, you ordered it to your specs but if I wanted to get one made, would I be able to get one done easily and who would I go through?
Many questions I know, but hope you don't mind sharing your knowledge.
Cheers
Yeah neck turn as the shoulder becomes the new neck. Just run into my full length, trim, turn and form with a soft load first time round. I’ll be keeping the reamer for all my future barrels another got fitted this week. I get them from Pacific tool and gauge, Manson, and JGS depending on their work loads. Took maybe 6-8 weeks from ordering to delivery.
Re: Anyone got a Sherman shortmag?
Posted: Wed May 09, 2018 8:54 pm
by WARDY91
204 Hunter wrote: ↑Wed May 09, 2018 9:52 am
Hi All,
I have found the standard 7 SAUM to be extremely accurate and for me the modified versions aren't noticeably more accurate, more to do with tuning and barrel management.
At the SA queens last week Rod Davies shot a 60:10 at 300m and I got lucky with the same at 700m all with the standard SAUM.
Reamers, dies etc are readily available as is load data.
But if you have an itch that just needs scratching- go for it
You were on fire all weekend mate. That was some seriously good shooting.
Re: Anyone got a Sherman shortmag?
Posted: Fri May 11, 2018 11:21 pm
by Teepee
Ok wardy,
Again, many thanks. Very interesting info.
So, if I was to order a reamer from ptg, what is it that I order.
Does it have a name? Or any thing else I could quote?
Thanks
Re: Anyone got a Sherman shortmag?
Posted: Sat May 12, 2018 7:47 am
by Branxhunter
Getting a bit off topic, but read a short article on the .220 Redline aka .22 SAUM - 75gners at +3900fps is a serious long range unit!
http://coyotestuff.com/the-220-redline-lives/. (You have to wade through a bit of hyperbole, but interesting round none the less).
Marcus
Re: Anyone got a Sherman shortmag?
Posted: Sat May 12, 2018 8:15 am
by Seddo
I found a pic of them
Sent from my iPad using Tapatalk
Re: Anyone got a Sherman shortmag?
Posted: Sat May 12, 2018 10:52 pm
by Teepee
Thanks Seddo,
Good to see the difference. A picture tells a thousand words!
Just wondering wardy, does yours look similar?
By all accounts, it's suppose to be more efficient than the saum parent case. According to R Sherman, the same velocity can be obtained with less powder used in his case design.
Have I got an ich, might have! I'm always interested in wildcats that are efficient (or not) but do like to try something different. Time will tell.
Thanks everyone for your input.
Re: Anyone got a Sherman shortmag?
Posted: Sun May 13, 2018 12:39 pm
by Seddo
i would have been interested if i didn't already have a 7RSAUM. Mine should have a 8 twist barrel in it sometime this week so i can have a crack at the Sierra 183gr SMK's.
