Ancient Ward's Mauser Mod. EJN 757, 30-06 original barrel,

110gr. poly carb tip, bulk, 12.2 gr. Blue Dot, Win case, #34 primer ,oal= 3.185". mild, a little soot, 1446 to 1521 fps.6 shot 3/4" group @ 50 yds.

110gr. FMJRN carbine ,same load, 1373 to 1459 fps.8 shot 1" group @ 50yds.

110gr. spire bulk, same load, oal = 3.2", some soot, 1469 to 1505 fps. 8 shot 1 1/2" group @ 50 yds. Great @ 200yds.

110 gr. FMJRN carbine, TW52 case, 24.6 gr. acc#9, Wlrm, mild, clean, 2200 to 2262 fps. nice group @ 50 yds., deadly at 200 yds.

110gr.FMJRN carbine, 19.2 gr. 4756, TW52 case, Wlrm., 1963 to 2011 fps.mild, nice group @ 50 yds.

123gr FNJ..310 diameter, 22.4 gr. acc#9, TW52 cases, Wlrm., oal=3.035, 2044 to 2125 fps. mild, 3 shot 1/2" group @ 50 yds.

123gr. FMJ. .310 diameter, 47gr. DP 74, TW52 cases, Wlrm., oal= 3.035, 2683 to 2775 fps. good stuff.

168gr. FMJBT. Rem. 51.6gr. 7383, RP cases, Wlrm., oal=3.340", lite compression, 2523 to2569 fps. fairly accurate.

CAVEAT NOTE BENE

I'm not trying to propigate the idea that it is intelligent or safe to push .310 diameter bullets down a .308 barrel. It is something that from time to time I test. roger

Roger do you notice any higher pressures from the .310 bullets?
I have shot .310 cast, in my 308 and it didnt seem to make any diffrences in pressure at all.
I did have more lead fouling than normal.
I was using Hurco powder and it was a dirty load anyways

quote:

Originally posted by hivelosity:
Roger do you notice any higher pressures from the .310 bullets?

Not from the mild loads I've shot. It seems obvious to me, however , when you are using the faster burning powders that there exists the danger that with enough powder ( maybe not a lot) excessive pressure may occur before all of the bullet leaves the throat. If I get terribly nervous I'll ask Clark to do the testing, wherever he may be. roger