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I had a P-17 with headspace questions,eleven thousand of them :) .I could by underloading ,shorten my cases and have the primers back out;more powder would leave the cases the same length with backed out primers,still more powder would stretch the case and leave a "normal"looking primer.Even...

From memory,Enfield rifling is five equal lands and grooves.Since it's odd number you can't just measure across.Spec call for grooves of .0055" and a bore of .303",what they are might be a different story.Military sights are set for a load,so to use them some guys then try to match the load.

Hornady 174 RN is the same weight as the sights are set for.It's also a .312" .Slug your bore,then add two of the grooves to 303.

I tried N-550 in my 338.06,great, and a couple of 30.06 with 165, pressure signs and low velocity.I have a 8x57 parts at Bill Leeper's,but it's a backburner project.Viht Vouri has a lot of interesting 308 Data with N-550.Dave Freisen has it a fair price.

Have you tried N-550,it looks about perfect.BTW I found N-550 a bit faster than listed.

At a gunshow I picked up three unopened red and green labeled boxs of Solid Base Baliastic Tip 30cal/150grain bullets. the lot# are rubbed but here goes #A?J?03E,#H002E,H?G?13E? When would these have been made?thx

30.06 308Norma 338.06 338WM 264WM 8x57JS 303Br Some for added velocity,8x57JS.30.06. Some for lower cost,308Norma,338.06 Some for better bullets,338WM,264WM, One because I reload,303Br

My loads for my 225gr 338WM,180gr 308Norma and 180gr 30.06 all use N-560.They say it's temperature insensistive.It needs a minmium pressure to shoot consistantly.So you end up with velocity,accuracy and moderate pressure.I like that combination.It also burns very clean.The down side is the fireball.

Thanks,if I don't have the data for that powder ,at lest I have max velocity to work up to.(RL 15) From the A-Square manual,I get a SAAMI max of 65,000psi,is that correct.

Headspace for the 30.06: Go= 0.00",chambers rounds,No-Go= +0.006", it's time to fix,Field =+0.009",this is for wartime rifles. Headspace problems : It gives the case a running start against the lugs,not breaking them but worsening the problem. It chews brass, the case get stretched then...

I have gone down that road with a P-17 ,a WW I 30.06,that could be your headspace.However if the load is very light your case might have shortened,measure before and after.At a moderate load the case will remain the same giving you an headspace number with the primer protruding.At a brisk load...

The VihtVouri N-550 and N-560.Ever time I used N-560,my load development ends.There not much fun in that,like ending the party at 8:30.It sure would be nice to have some guidence at SAAMI pressure levels.

I going to load some 338.06 with 225 Accubond,hey they work great in my 338WM,and VihtaVouri N-550,which I also have.I shouldn't runout of room with N-550.a couple of questions What pressures were you using in your latest manual for the 338.06? Do you have any data with N-550 or can I use...

The 6.5mm 140gr for the 264WM would be great.The sectional density of the heavier 6.5mm make penatration a given,not so for expansion with it's small dia. Thus you could get the reliable expansion without worry of blow-up.You don't always get long shots.