Might be a good idea to " double check " your load data ?
- Thread starter Ben
- Start date
Creeker
Well-Known Member
Action metal wrapping the threads?
RBHarter
West Central AR
I've been checking some numbers for a rifle a very close but older cousin to that one . I've quoted seating to the canalure with .250 jump on a Hornady 3033 for so long I thought just for grins I'd check it out against nominal OAL for a Nosler Partition 165 .
Of course I can only speak for the one rifle and that bullet and unfortunately I don't have Nosler OAL but a very similar Speer 165 says 3.250 ....... 3.285 for the Ballistic tip in the Lyman 48 . My calipers are with an ammo can AWOL just now but best measures bring me in at 4.009 on the lands . Apply Weatherby math to Savage chambers plus the number of all but too long chambers and viola' . What sort of dumbassery does it that to do that ........I can come up with one "honest" error . A 300 BO in a 223 chamber . I guess a load of H110 instead of 748 is the only spherical I have had any contact with ...
I can't imagine getting the right powder even over max in a Savage and parting it out like that . What 24 gr of Unique under a 150 ?
A 7-08 in a CM , I don't think it's possible but a 270/280 in a 25-06 .
I've got it , a 303/762R .312 175 gr bullet in a Argentine Nato 7.62 case loaded with 4895 for 7.62x51 NATO 145 FMJ . Fat bullet , thick neck , and a chamber on the narrow side of median spec . There now it's an honest mistake almost anyone could make .
What a waste of a good pair of pants and a rifle .
Of course I can only speak for the one rifle and that bullet and unfortunately I don't have Nosler OAL but a very similar Speer 165 says 3.250 ....... 3.285 for the Ballistic tip in the Lyman 48 . My calipers are with an ammo can AWOL just now but best measures bring me in at 4.009 on the lands . Apply Weatherby math to Savage chambers plus the number of all but too long chambers and viola' . What sort of dumbassery does it that to do that ........I can come up with one "honest" error . A 300 BO in a 223 chamber . I guess a load of H110 instead of 748 is the only spherical I have had any contact with ...
I can't imagine getting the right powder even over max in a Savage and parting it out like that . What 24 gr of Unique under a 150 ?
A 7-08 in a CM , I don't think it's possible but a 270/280 in a 25-06 .
I've got it , a 303/762R .312 175 gr bullet in a Argentine Nato 7.62 case loaded with 4895 for 7.62x51 NATO 145 FMJ . Fat bullet , thick neck , and a chamber on the narrow side of median spec . There now it's an honest mistake almost anyone could make .
What a waste of a good pair of pants and a rifle .
oscarflytyer
Well-Known Member
I don't believe I have ever seen one explode quite like that... Somebody had to get hurt. And the "enough dynamite" really applies I'd say!
Rick H
Well-Known Member
My buddy blew up his Whitworth Mauser action custom 7mm Weatherby magnum and it looked a lot like that. The Action over the barrel threads pealed back, the barrel flew forward about 3 ' and it broke the maple stock in multiple pieces. The bolt was bent inside the action. It didn't break the scope in half but did bend it. the rear portion of the case disappeared and the part in the barrel is welded tight. He was shooting ammo he had loaded perhaps 10 yrs before. It was hot. He had been blowing primers for some time without noticing it. (looking at the half empty box of ammo with primers blown and missing. He had been hunting with these rounds for years. When he went to check zero the first shot from a clean barrel blew the rifle apart.
In pulling down the rest of the ammo he had a very difficult time with the impact puller. The bullets and cases inside the neck were covered with vertigris, that green corrosion residue. He weighed the powder and it weighed what he loaded (it was supposed to be a max load of H-4831 from an old manual, but had been fired for many years without incident leading up to this disaster.) He tossed the powder before I could get a look at it. He had both H-4831 and IMR 4831 on hand and isn't sure he didn't mistake one for the other.
The cases with the blown primers had been used for hunting and fired to check zero and take game. Yes he is a fool. The person who built the rifle for him developed a load and Dave just copied it when he needed more ammo.
Dave believed it was the old ammo with corrosion inside that caused the destruction, but isn't sure that he might not have mistakenly used IMR 4831 for H-4831. Whatever happened was a massive overload. HIs action was bent beyond recognition with the metal over the barrel threads pealed back like Popeye's spinach can lid.
Dave's eyeglasses were etched and pitted (I assume from gas and bits of the vaporized brass) and he had a small 1/4" shallow cut on his cheek. His trigger hand was sore (said it kicked like a mule). Otherwise he was uninjured.
The barrel looks fine, like it could be reused if you could get the front half of the case out of the chamber, if there was an obstruction it went out the bore cleanly.
Dave is contemplating only using factory ammo from now on. Probably a pretty good decision.
In pulling down the rest of the ammo he had a very difficult time with the impact puller. The bullets and cases inside the neck were covered with vertigris, that green corrosion residue. He weighed the powder and it weighed what he loaded (it was supposed to be a max load of H-4831 from an old manual, but had been fired for many years without incident leading up to this disaster.) He tossed the powder before I could get a look at it. He had both H-4831 and IMR 4831 on hand and isn't sure he didn't mistake one for the other.
The cases with the blown primers had been used for hunting and fired to check zero and take game. Yes he is a fool. The person who built the rifle for him developed a load and Dave just copied it when he needed more ammo.
Dave believed it was the old ammo with corrosion inside that caused the destruction, but isn't sure that he might not have mistakenly used IMR 4831 for H-4831. Whatever happened was a massive overload. HIs action was bent beyond recognition with the metal over the barrel threads pealed back like Popeye's spinach can lid.
Dave's eyeglasses were etched and pitted (I assume from gas and bits of the vaporized brass) and he had a small 1/4" shallow cut on his cheek. His trigger hand was sore (said it kicked like a mule). Otherwise he was uninjured.
The barrel looks fine, like it could be reused if you could get the front half of the case out of the chamber, if there was an obstruction it went out the bore cleanly.
Dave is contemplating only using factory ammo from now on. Probably a pretty good decision.
Petrol & Powder
Well-Known Member
It is far more likely the person is faulty than the data is faulty.