Silver Supporter
- Messages
- 950
- Reactions
- 927
- Thread Starter
- #21
I might buy a gauges, but I will post here in the forum to see if anyone in Seattle can do it and I can bring my rifle and pay. It is 30 seconds job.
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
I would never knowingly shoot someone's else re-loads. I purchased the rifle and with the price I negotiated few boxes of factory ammo. I had no idea that some could be reloads. If I knew I would not take them.Reloads. That's a no-no unless you loaded them yourself.
I think headspace can be adjusted on reloaded ammo casings when done incorrectly could be excessive. Maybe a reloader can chime in about thatI will make another post and see if anyone in Seattle area could measure the headspace in my 30-06 chamber and I will pay for it. I am a scientist and my curiosity does not let me wait. I need to have answers immediately, or I can't sleep. My work is to solve problems, so when I get a problem I do not stop until I solve it. In this case, I need to have an aswer if the issue was caused by the ammo or by the rifle (headspace). It is unlikely the rifle since I shot at least 80 rounds without the problem, so it would not make a sense that headspace issue suddenly appears from nowhere. However, everything is possible, so I will measure the headspace.
yeah i wouldn't be so sure they are reloads, my guess is they are factory remans. but can't rule out personal reloads either. that's the risk we take when we buy anything second had in this sport.Hmmm...maybe these were factory reloads by HSM?
I just went to my gun room and opened a new box of HSM, in .40S&W. Of the handful that I grabbed, five of the headstamps were:
FC
Federal
Winchester
Speer
S&B
View attachment 834218
yeah if you enjoy thrill seeking sports id want to keep (both of) my eyes to keep that up. this isnt the sport for it.Maybe consider a different venue for your thrill seeking
head space is head space. the bolt can grow a little maybe a thou or two over the life of a rifle and change if the barrel is swapped etc. also why it should be checked every now and then under normal circumstances to tell if something is about to give way. ak bolts can grow a bit with even 5k-10k rounds. they are known to be pretty cheap metal for the bolts. (not good)I think headspace can be adjusted on reloaded ammo casings when done incorrectly could be excessive. Maybe a reloader can chime in about that
if a reloader bumped the shoulder back too far would that be the same net result of a rifle with excessive headspace?what your refering to is shoulder bump when sizing a case to match the same chamber it was shot from. not really the same thing. similar but diff.
its true a case sized too much to an extreme would cause lower case volume and increase pressure excessively if loaded to near max def. but the shoulder of the brass would also blow out to form to the chamber (fire forming). i have no idea how much this would increase pressure (and theres no real way to tell without peizo strain gauges etc) but even seating a round .01" deeper can increase pressure a few thou IIRC. im pretty certain that would only flatten a primer somewhat not completely blow it out like that.if a reloader bumped the shoulder back too far would that be the same net result of a rifle with excessive headspace?
Im just leaning to the ammo as the issue here since if the rifle is old its probably shot many rounds just fine I would think chamber headspace would have shown up in the rifle at its beginning and corrected by now?
Thanks for the advise. Next time I will be more careful. I only brought with me HSM ammo, so I could not check Federal. I will ffirst check the headspace just to be on a safe side, and if that is OK will only shoot the ammo that did not give me problem. I am also looking to buy some both in 30-06 Sprng and 308 Win. If anyone is interested, I am giving for free the HSM box.Post #23, above, the top picture. Is my eyesight playing tricks on me or is one of those bullets seated deeper than the other? I'm not suggesting this is the cause of the blown primer. A bullet driven in deep enough might be.
I vote with the many who believe this is an ammo problem, not a rifle issue. There may be two problems involved. One, the hangfires throughout one box. Two, the blown primer. Might be the same problem is there is a powder quality issue.
Advice for the future, the very first time you shoot and encounter something that seems wrong, stop shooting. OP, you had no problems with your Federal ammo. Then you noticed problems with the HSM. That is the point where you should've stopped shooting and investigated. Including having some remaining, unfired rounds from the troublesome box. Which you could've done a partial autopsy on one of the cartridges. You may have found caked powder or something else amiss.
I suggest you pull down a couple of the HSM cartridges in the remaining box. You might find an answer, maybe not.
HSM has been a lower tier manufacturer of ammo for decades. I wouldn't buy any. But their sales seem to surge in times of scarcity. I can remember an earlier round of famine when HSM was one of the few brands available. I shiver to think how much liability insurance costs for such a company.
HSM may have used new brass from PMC. When PMC (El Dorado Cartridge Corp.) had their plant in Boulder City, NV, I seem to recall they sold new brass for loading. Those bright orange HSM boxes are not recent.
100% thats why i said ammo..It is near impossible that headspace would be correct for few shots, and then suddenly change