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Having owned and shot many swiss k-31 one of my favorite calibers is the Swiss 7.5X55. I talked to my gunsmith/rifle maker and he says he can get a reamer for the 7.5 Swiss.The plan is to build a single shot target rifle useing a savage action and a 26" heavy Lilja barrel.I'm new here and want to say this is a great forum.I have 3 Savage rifles 2-223's and my pride and joy a older Chieftan in 7X57.
Great cartridge - the larger rim (on paper) might give a problem, but with Savage's oversized bolt faces and most brass being undersized, I doubt it will be an issue.
Should have gone with the 7.65x53 Though!!!
That would be an interesting round on a solid bolt action rifle.
I neck up 284 Win brass to shoot in all of my K31's. Are you doing the same?
Larger rim? This cartridge has a rebated rim.Quote:
Originally Posted by Eric in NC
yes, I also use .284 winchester brass.The Swiss GP11 service ammo is quite accurate.This is something I always wanted to do. I'll take picture of the progress.Any ideas for a stock.
Many people use 284 win brass to form the cartridge (and do end up with a rebated rim), but I do believe spec is for a .495-.498 rim which is about the same size as the case head. I haven't measured any surplus but it definately doesn't appear to be rebated.Quote:
Originally Posted by dcloco
Why would you go for such a chambering? if for sentimental reasons or if you have a cheap plentiful supply of fodder then I could understand, the cartridge is (ever so slightly) RIMMED just like to '06, 338Lapua, 308W not as much as the 220swift howeverjust wishing to clarify not that it would cause feeding issues. WHAT 30-06 RIMMED???? :o
Back to the '55; odd rim diameter half way between standard and magnum size projectiles may be limiting factor with the odd size @.306". Case vol between the 308W and 30-06. quite a bit of case taper would cause more bolt thrust (but good extraction and more room for an ackley improvement!) and possibly lug issues with v.hot loads...careful the chamber doesnt have any lube in it!!
my 2c
D
Why anything? .223 and a 30/06 would cover about anything in North America. back in the 1960's my first gun was a model 1911 Swiss in 7.5x55. My first job was the clean up boy at the local rifle range. After work and loading the trap machine's I could shoot on the range.I did not have to buy my own soft drinks for a long time.A lot of shooter learned about how accurate a Swiss rifle was for the first time.The lee loader was a pain in the butt,but it worked. Since then I have always wanted a real target rifle in 7.5X55. The straight pull rifle has it limitations. I think the Savage will be a perfect platform for such.
Perfect idea on that cartridge from by-gone days. I too like the idea and have already done it with other calibers -- 7x57 and 8x57 Mauser. Hunting buddy who also was a dealer got me started shooting the old military rifles of WWI and WWII. Would bring one out that had been traded in too sell me. Most were acquired at bargin basement prices. After getting dies and brass would load up hunting loads for deer season. Most Americans are snobbish when it comes to Eureopean cartridges. Few are willing to try anything other than what the gun scribes toot. Lucky for me because I've acquired several fine examples for my collection which others over looked during gun shows due too ignorance that 5.6x35R is a 22 Hornet. Keep us informed of your project as it progresses as I'm interested in your project.
Sounds like fun.
Pac-Nor lists the 7.5x55 as one of their standard chambers.
:)
:) + 1 on sounds like fun !! just make sure you post pics. and targets and all the other good stuff.But , beware if you build it everyone else will want one . :o (cause i love my k-31)
Let us know what happens!!! I have a K31 that I love, but have been having problems with it not always hitting the primer hard enough... Anyway, good luck!
I put a loaded 7.5x55 round up next to a 308 round the other day and it looks like you will be able to get a good bit more velocity out of the Swiss. More capacity and a sharper shoulder. Link to a photo from Wikpedia to illustrate:
http://www.google.com/imgres?imgurl=...26tbs%3Disch:1
7.5x55 round has the wax seal, the 308 round is just to the right.
Thanks Eric - the 284 Win has the rebated rim, NOT the 7.5x55 Swiss.Quote:
Originally Posted by Eric in NC
Sounds like a cool project. Looking forward to seeing how it comes out. I picked up a K31 earlier this year but haven't been able to really shoot it yet.
My obscure cartridge love goes to the 7.62x54R.
Make sure you know what chamber you are going to do. The K31 chamber is differant than the 1911 chamber. Also most of the dies made are for the 1911 not the K31. It will work, but the dies will over work your brass.
http://www.surplusrifle.com/shooting...ing1/index.asp
Read this it will help
Eight heads,go to the Swiss rifle forum.A light primer strike is a common problem.Do a search on the forum for the fix.
Nothing wrong with a Euro chambering, I enjoy shooting 8x57IS & 375H&H myself, Following is a comparison of cases magnum,7.5Swiss,'06,308win,223Rem. hope it attaches ok -
[img width=360 height=450]http://i767.photobucket.com/albums/xx318/defoxer/firearms/rifles/cartridges1.jpg[/img]
Dashed is the 06, dotted is the 308
re the surplus rifle info; Sounds very convenient;
"The 7.5 X 55 Swiss round uses a “standard size” (standard size for the US and 7.62 NATO rounds) .308 (.30 caliber) diameter bullets."
I don't agree with this, It will help the sale of surplus rifles though....the 7.5x55 groove diameter is 7.77mm while the 308W and all other 7.62 chamberings use a 7.82 groove - if you jam a 7.85mm projectile (7.62size) into the 7.77 groove it is possibly (probably) way oversized and leading to skyrocketing chamber/barrel pressures. I would personally not use a 7.62 size projjie in the 7.5x55 rifle UNLESS I built the rifle using a 7.62 spec barrel. hope this makes sense.
D
thanks, got a link?Quote:
Originally Posted by tuscan