Shooting 17HM2 out of a 17HMR? Possible damage??

7.62Enfield

7.62Enfield

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So this weekend a friend of mine borrowed my savage 17HMR to take to the range. Without knowing he bought a box or 17HM2 and shot about 10 rounds before realizing there was something wrong. 60% of the cases split and would not extract. Is there any possibility it damaged my gun at all?
 
Other than wearing the end of the chamber wear the case neck SHOULD seat, not likely. Shine a bore light down there after cleaning it and see if the split cases gouged the chamber on extraction or if a bullet managed to chip or nick the throat. I'm sure others will have advice too. Luckily with such a small cartridge and light bullet any possible damage should be minimal.
 
handofzeus said:
Other than wearing the end of the chamber wear the case neck SHOULD seat, not likely. Shine a bore light down there after cleaning it and see if the split cases gouged the chamber on extraction or if a bullet managed to chip or nick the throat. I'm sure others will have advice too. Luckily with such a small cartridge and light bullet any possible damage should be minimal.
Click to expand...

Case neck won't be seating anything.....

44609d1319063633-17-mach2-dead-200px-rimfire_17_family.jpg


Why would you lend your gun to someone....?
 
Hey 7.62Enfield~I'd say your friend got lucky, and that you should inspect your rifle...or have a gunsmith check it over before shooting it again yourself. I think this raises a few important questions;

1. Why would your friend not look at the data stamp on the barrel before loading the gun?
2. What kind of HMR easily accepts an 17M2 round and "looks" right?
3. After blowing-up the first case, why didn't this friend of yours take a moment to try and determine what's going wrong?
4. Why the heck would you ever loan a gun to someone? (none of my business) Is that even legal?

It sounds to me like your friend might not be the most perceptive of shooters, and mistakes like this can cost more than a damaged chamber. Don't mean to sound "preachy", but deviating from a barrel's data stamp can be exceedingly dangerous. My hunch is that your gun probably survived unscathed, but don't take web forum advice as gospel where your safety is concerned.
 
Hey guys,
I have inspected the rifle and had a gunsmith inspect the rifle as well since it happend. I have fired 50 rounds through it and had no problems. Chamber is good, nothing has been damaged. It was a simple misunderstanding thinking 17HMR was the same as 17HM2. He was not using the mag so there was no feeding issues. My friend is fully licenced just into bigger calibers. He offered to replace the rifle if any damaged occured so I am not concered. Everything has been cleared good to go on the rifle. As soon as he told me what happend I knew exactly what went wrong. He is safe so that was my only concern, the gun is one of my cheaper rifles so its no big deal.

Edit, forgot to mention, 17HM2 chambers no problem and would look normal if you didnt look closely. Just a longer case with the 17HMR. Live and learn, last time I let a friend borrow one of my rifles. Thanks guys for the help.
 
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I am still trying to figure out why it took ten shots with 60% of the cases splitting and not extracting, to figure out that there was a problem.
 
Apparently the last shot was the only one that didnt extract. The rest extracted without issue. Honestly I am thinking the same thing but what can I do. After the first case explosion he should have gave me a call but everything turned out okay so I am not worried.
 
Yes it would leave a gap but with the bolt closed it would hold the rim flush and straight in the chamber which is probably why no damage was done to where the neck would seat on a proper 17HMR round.
 
It's too bad they are named so similar... :/

.17HMR looks almost Identical to .17HM2.. Especially if you're in a hurry. lol

They should have named it .17SHMR. Or something with an 'S' in front of lettering...
 
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