What do you guys think happened here? (30-06 reload)

Sorry guys, I haven't been checking back because I haven't heard anything from my friend. He was preparing and went on a trip this past little while, So he hasn't done anything with those rounds yet.
He got back this past weekend so hopefully he'll get at it soon. Once he gets to it, if he finds anything I will post it up here.
 
Sorry guys, it's been quite awhile. But I do have something to report, my friend pulled all the bullets and re-weighed his loads with a good scale.. he found that each one was 4 grains heavier then what his old scale was telling him.
 
tavares86 said:
Sorry guys, it's been quite awhile. But I do have something to report, my friend pulled all the bullets and re-weighed his loads with a good scale.. he found that each one was 4 grains heavier then what his old scale was telling him.
Click to expand...

49.0 grs of H4895 with a 168 gr bullet is only 1.5 grs over the published max. That brass looks like it was subjected to quite a bit higher pressure than 49.0 grs would produce (i.e. 300 Win Mag pressures). Anyways, there's still a lesson learned.
 
iceman2 said:
Did he by any chance measure case length? Over charge and long case not a good combo.
Click to expand...


I think we have a winner.

I had a bad experience with a 270 win, load was close to max, i accidently loaded with one brass that was way to long.

I saw my mistake at the bench and putted the round aside, but my shooting buddy loaded the round and fired.

Same thing happened, the case looks identical and the barrel was ruined ( ring )

cost of replacement was 500 $, lucky for both of us the action handled the pressure.

I pulled all the other rounds that remained unfired, they all checked ok for weight, powder type and lengh.

Stupid mistake.
 
I had something similar happen with factory ammo that had too much headspace. Bought eight boxes of S&B 6.5x57 129 gr. took them to the range and the first 12 rounds would not stay on paper. Rifle is a tack driver with handloads. Round number thirteen went kaboom...poked a hole through the primer just like in the photos. Put everything away and got to measuring things later at home. Factory ammo all had .013" to .018" head space! The over pressure round had .040" but may have shortened during firing. Brass moved forward to the front of chamber after being struck by the firing pin then slammed back onto the protruded pin which pierced the primer.

Same rifle the rcbs full size die actually made brass grow could never get it short enough to close the bolt without pressure. Required .012" stoned off the bottom of the fl die to bump shoulders on my handloads. Also the part of the die that sizes the case head did not conform to CIP specs and undersized all the case heads.

Another rifle of mine (JM stamped Marlin guide gun in .45-70) has a barrel that measures .455" groove to groove (under SAAMI spec) and a chamber that measures over SAAMI spec. Caused a lot of smoky cases for the previous owner. Just saying that it is a good idea to measure stuff...

The theory of a little bit of pistol powder left in the hopper makes sense but don't over rule excessive headspace.
 
Seems to me a pressure issue
Enough to stretch the brass and blow primer
You'd never get 70 gr into an 06 case
I'm shooting 57.5 gr of 4350 and a speer hot cor 165
That was near.max ND pretty well.full case
Using winchester brass which is usually the roomier..
Hope this guy has better luck!!
 
You must log in or register to reply here.
Back
Top Bottom