Chamber Dimensions????

[fknipfer]

I am trying to find out the chamber and throat dimensions on a Model 94AE .356.  I also would like to have the .358 chamber and throat dimensions.  I would gladly pay for a book that has these type of things if there is one.  I haven't had much luck as yet.
Please advise if you can.

fknipfer

[quickdtoo]

Here's a handy online source of a lot of chamber and cartridge dimensions, no 356 or 358 Win tho.

Tim

http://www.leverguns.com/dimensions/Default.htm

[fknipfer]

quickdtoo,

I looked thru Leverguns and noticed there wasn't any .356 and .356.  There is a website somewhere that has all of the cartridges and chambers but I lost it when I crashed had it in my favorites and never could find it again.  I will keep looking until I find it and when I do I will post the website here.

fknipfer

[Rangr44]

The cartridge dimensions are here:

http://stevespages.com/page8d.htm

http://stevespages.com/jpg/cd356winchester.jpg

http://stevespages.com/jpg/cd358winchester.jpg


And, From Clymer (reamers):

"Length clearances are also dictated by cartridge preparation and care. Because of brass flow, we would not recommend a chamber neck length less than .010" longer than actual cartridge. Overall chamber length to the end of the case mouth would be a minimum of .010" longer than the actual case dimension."

"Chamber neck sections that pinch the neck of the cartridge by being too short and/or too tight, extremely short throats and excessive headspace can all create high chamber pressures.
Unless you are planning to ream/turn case necks, we would not recommend the neck section of your chamber be made less than .004" larger than actual cartridge diameter."

.

 

[quickdtoo]

Ammoguide has more detailed cartridge dimensions using SAAMI specs, Steve's pages gives very contradictory info on a lot of the cartridges listed, and blocks links to individual drawings. Unfortunately Ammoguide is by subscription only now, but worth it IMO, it also has a lot of other useful info. 

http://ammoguide.com/

http://ammoguide.com/?catid=69

http://ammoguide.com/?catid=65

Ranchdog has some precision drawings on his site, go to   http://ranchdogmolds.com/   and then click on the appropriate bullet diameter mould # on the left side, then Chamber Drawings on the right side.

Tim

[Mikey]

fknifper:  fire a 356 round and mic the fired case - that will tell you the size of your chamber then go to Steve's Pages or to the other links to determine what a 358 case dimensions are.

I do not believe you should have more than .001 to .002 larger chamber than case dimension with a throat no longer than .001 longer than the case.  Some mil-spec go larger by .001 or so but custom barrel makers I have spoken with tell me they do not go more than .001 over spec for hunting chambers.  HTH.  Mikey.

[bcp]

The same dies are used to reload both 356 and 358 cartridges.  Can't be much if any chamber difference other than the rim.

http://www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=617802&t=11082005

Don't know about the throats.

Bruce

[fknipfer]

thanks guys for all the information.  Figured out the .356 but not the .358.  Throat dimensions have to be different because the OAL length of a .356 is 2.550 and the .358 is 2.800.

fknipfer