765 X 53 mauser

[bum steer]

Saw a sweet argentine mauser at a gun show cheap. Checked my loading manuals and can't tell if it loads a regular .308 bullet. Shows the bullet diameter as .3095. Is this a reg 30 cal bullet or do you have to use .303 bullets

[1911crazy]

Some have suggested slugging the bore first to see what size it is.  At the midwayUSA site in the reloading section in the bullets they recomend the .311" sized bullets.  In my speer reloading book the use .308, .311 and .313 diameter bullets so it gets more confusing which diameter is correct.  I'm sure a bullet too tight in the barrel will hurt the performance too. I'm going top reload for mine soon and i'm staying with the .308" first and see how it shoots and i may try the .311" bullets but nothing larger than .311".                                                       BigBill

[ajj]

Both of mine like .311. Ken Waters' Pet Load article calls for .311.

[Mikey]

Hey BigBill - Howz ya?  My Lyman manuals show jacketed and cast bullet diameters from .311 - .313.  I think the tip is the 7.65 designation.  7.62s are usually .308 diameter (note, please, that I said 'usually').  Mikey.

[1911crazy]

Mikey my speer reloading book number "9' shows a .308"  100gr plinker  then it shows .311" and .313" bullets for the rest of the reloading for the 7,65.  My lyman book calls for all .311" diameter bullets and my hornady book calls for all .312" diameter bullets.  Funny???  Its like guess your best or pick a number when it comes to bullets for the 7,65???  BigBill

I believe it was suggested here to use the .308" diameter bullets in the 7,65 arg.  I believe there are .310" diameter bullets for the 7.62 sks but there on the smaller side in weight like 125gr.  I think i seen them at www.midwayusa.com  I think that the 7.62 sks/ 303 britt/7.7jap/7,65arg are in the same section there.

[S.S.]

As with any other milsurp, mike the bore and load for
what it tells you. I am sure that anything from about .308-
.314 would work but accuracy would be horrible.

[1911crazy]

S.Sumner I think your were correct before by saying stay on the small side and see how it shoots.  I'm going to try the .308 first then to .311 bullets and i think i won't need go any larger in diameter.  If the 308's shoot accurately i'll use them.                                BigBill

I purchased plenty of the 7,65 arg ammo when they had a sale recently for plinkin but i'd rather reload for accuracy too.  I'm not sure how the old surplus stuff is going to shoot.

[kombi1976]

Between the old rounds like 7.65x53, .303 British & the vague bore dimensions of 7.62x39 and 7.62x54R which often end up as .311 cal rather than .308 I'm kinda surprised that premium bullet makers are making at least one bullet for this cal.
Woodleigh makes 2 different weights, 174gn and 215gn, but apart from them there seems to be a general lack of premium bullets apart from small custom makers.
What's the consensus on this?

[kevin.303]

Between the old rounds like 7.65x53, .303 British & the vague bore dimensions of 7.62x39 and 7.62x54R which often end up as .311 cal rather than .308 I'm kinda surprised that premium bullet makers are making at least one bullet for this cal.
Woodleigh makes 2 different weights, 174gn and 215gn, but apart from them there seems to be a general lack of premium bullets apart from small custom makers.
What's the consensus on this?

because none of the latest super magnums use them, so they don't really care.

[Rick Teal]

Mikey:

The reason the Soviet 7.62's shoot .311 bullets is that they tended to cut their rifling a little deeper than the .004 that was typical in North America and Western Europe.  I understand that the conversion was something in the area or .3108.

I'm not all that familiar with the 7.65 other than that spec. was .311, but it might be something similar if the bore diameter was actually 7.65.

By the way, some of the relavent metric conversions are:

.300....7.62
.301....7.65
.303....7.70
.308....7.82
.311....7.90