Can someone tell me what happened ?

D

dan s

Guest
hello to all, hoping someone could shed some light on what happened. I recently picked up a rem. model 722 chambered for the .244 ( 1-12 twist) for the wife for our 24th anniversary. seemed like a good choice as I have a rem. model 700 cdl chambered in the 6mm cal. took the gun out last weekend to try some test loads, things were going good when bam I get a face full of hot gas. I was trying work up a load using barnes 85 gr ttsx and imr4350 ( it's what I use in my 6mm) the recipe calls for min. 43.5 - max 47.5 grains

all was good until I got to 46.5 grains, up to 46 grains there were no signs of excess pressure then bam. blew a hole thru the primer, so not sure what to think. excess pressure, loose primer pocket, bad primer. there no other indicators on the spent shell of high pressure and where the bullet struck was consistent with the other shots.

I then tried a couple more at 46 grains no problem, I am soooo glad that did not happen to the wife as I just got her started in the hunting and shooting game and this would have scared her right off. I am hoping someone can apply their wisdom here.

thanks much
dan s

p.s. trying to upload image of shell casing having troubles so I will post this now and figure how to upload or I will most likely lose what I have typed.
 

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Blown primer

Can be a bad primer..... win.made a lot of them...... they have ruff sides/don`t seal and gas leaks......win.is paying for a new bolt for my friend.
 
I had one do that a few years ago, the edge of the primer cup blew out. I chalked it up to a bad primer, "possibly made thin at the radius when the cup was formed" I have no proof of
that "speculation." I no longer use that brand of primers, Please do not ask which brand as I will not trash a product that has worked fine for other people. I sometimes, (most times)
create my own problems.
Check to see if it flame cut your bolt face, it did mine. I had Gre'Tan bush it and it is just fine now.
 
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I had about a dozen Remington 243 cases that when I resized the decap pin just pushed the flat part of the primer out of the primer pocket and left the edges where they were. They all had some leakage also.
 
Blown Primer?

Since this event did not reoccur, my experience says that you had (1) a bad formed primer or (2) an uncleaned primer pocket that wouldn't allow a good primer to seat properly. A slight burn ring on the bolt face is no big deal. I would try another brand of primer and closely examine the primer pockets when loading. .244 Rem?.....nice all around cartridge!
Ted

BTW Your picture indicates a properly struck primer with NO cratering, meaning that (1) or (2) could be the fault.
 
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D. E. Laneer said:
I had one do that a few years ago, the edge of the primer cup blew out. I chalked it up to a bad primer, "possibly made thin at the radius when the cup was formed" I have no proof of
that "speculation." I no longer use that brand of primers, Please do not ask which brand as I will not trash a product that has worked fine for other people. I sometimes, (most times)
create my own problems.
Check to see if it flame cut your bolt face, it did mine. I had Gre'Tan bush it and it is just fine now.
Click to expand...

hi, i am not exactly sure of what to look for in regards to flame cut the bolt face, so i am loading a pic of the bolt face. it does appear to be ok a little black and there looks like there is a small depression on the face but could have been there before. i did fire 2 more rounds @ 46gr. after the primer blew out. i checked each casing with no signs of anything wrong that i could see.
 

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TheoW said:
Since this event did not reoccur, my experience says that you had (1) a bad formed primer or (2) an uncleaned primer pocket that wouldn't allow a good primer to seat properly. A slight burn ring on the bolt face is no big deal. I would try another brand of primer and closely examine the primer pockets when loading. .244 Rem?.....nice all around cartridge!
Ted
Click to expand...

well i would have to say that if one of those was the cause i would have to go with #1 bad formed primed as #2 would not happen, i am tooo anal about this e. i normally use fed. primers but had a 1/2 box xxx brand and decided to use them up. i have had my 6mm for over 20 years and just love it. that's why when this .244 came up for auction i had to have it for the wife. she likes my 6mm (wink wink) but finds it too heavy with the 1"barrel.
 
The flame cut on my bolt face looked like a miniature cutting torch had been used to gouge out a place where the primer leaked. Probably about .020 deep and
.100 long following the radius of the primer. I wish I had taken pictures but this was before I had a digital camera.

Clean your bolt face good and look for any erosion around and under where the radius of the primer would sit. The flame cutting on my bolt did not hurt function
or make it weaker, it just did not look nice. I see no flame cutting in your picture, mine was very visible.

I have no idea if I hit what I was shooting at.

My rifle was a controlled round feed, stainless, feather weight, caliber .243 Win. Model 70.
 
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well it appears as the consensus is leaning towards a bad primer. it's what I was thinking but wasn't sure that's why I came here to ask. although I will not dismiss the notion that I may have reached max pressure, and will proceed with extreme caution in working up a load.

a big thank you to all who have taken the time to reply, you people are a great asset to the shooting world. this is a great forum where I am sure shooters and hand loaders of all skill levels can learn something. I just wish I could learn as much as some of you have forgotten.

I will post back after the next round of test bullets

thank you again

regards
Dan

p.s. if not anything else this incident surely reaffirms the importance of shooting glasses !!!
 
My Opinion FWIW

243winxb said:
Photos http://s338.photobucket.com/user/joe1944usa/slideshow/Firearms and Reloading/Primer Gas Leak
Click to expand...


If I were you, I would not fire that rifle again until the bolt face is fixed. You have two gas cut divots in the bolt face, one of which is serious. I would imagine someone else, perhaps more than one, has had the same experience you had with the rifle and that's why it was for sale. Do yourself and everyone else who might fire the rifle in the future a good deed and send the bolt to Greg Tannel at GreTan rifles and let him work it over. Your problem will be over. Greg can't be beat for quality work and timely delivery.

Gene Beggs
 
Gene Beggs said:
If I were you, I would not fire that rifle again until the bolt face is fixed. You have two gas cut divots in the bolt face, one of which is serious. I would imagine someone else, perhaps more than one, has had the same experience you had with the rifle and that's why it was for sale. Do yourself and everyone else who might fire the rifle in the future a good deed and send the bolt to Greg Tannel at GreTan rifles and let him work it over. Your problem will be over. Greg can't be beat for quality work and timely delivery.

Gene Beggs
Click to expand...

aha i knew the second shoe was about to fall, well FWIW consider your advice taken. safety is paramount not only for me, my wife, kids but also the few people i introduce to shooting who have never shot a gun before. i wish i could send it to Greg T. but unfortunately i live north of the border and sending this across the line is a no no. even if it made it there it would probably be confiscated on the way back, then I'd be in big poop, the worst two things for me living here are 6 month winters and our gun laws and the winters aren't so bad LOL. there's one gunsmith around and he's about a 4 month wait.

i could wait the 4 months i am sure i would get the bolt back by November when hunting starts, but what to do in the mean time in regards to working up a load. i am wanting to get the wife to shoot her gun as much as possible before hunting season. so here's a thought i have been pondering, and hoping someone can put in their 5 cents. (as we don't have pennies anymore)

i have a rem model 700 6mm what are the chances that that bolt would work in the .244. it does fit nice but would i need to worry about head space issue's or any other type of issue. i have not tried cycling any rounds thru it as i am presently finishing the stock. if the the distance from the front of the bolt to the bolt face is the same on both bolts, do you think it would be good to go. just a thought

once again thank you in advance
Dan
 
You could try CCI #34 primers, supposedly the cups are thicker.
 
dan s said:
aha i knew the second shoe was about to fall, well FWIW consider your advice taken. safety is paramount not only for me, my wife, kids but also the few people i introduce to shooting who have never shot a gun before. i wish i could send it to Greg T. but unfortunately i live north of the border and sending this across the line is a no no. even if it made it there it would probably be confiscated on the way back, then I'd be in big poop, the worst two things for me living here are 6 month winters and our gun laws and the winters aren't so bad LOL. there's one gunsmith around and he's about a 4 month wait.

i could wait the 4 months i am sure i would get the bolt back by November when hunting starts, but what to do in the mean time in regards to working up a load. i am wanting to get the wife to shoot her gun as much as possible before hunting season. so here's a thought i have been pondering, and hoping someone can put in their 5 cents. (as we don't have pennies anymore)

i have a rem model 700 6mm what are the chances that that bolt would work in the .244. it does fit nice but would i need to worry about head space issue's or any other type of issue. i have not tried cycling any rounds thru it as i am presently finishing the stock. if the the distance from the front of the bolt to the bolt face is the same on both bolts, do you think it would be good to go. just a thought

once again thank you in advance
Dan
Click to expand...



Dan, I'm not familiar with your country's rules about shipping rifles or rifle parts to the US for repair. I would think there would be some provision for doing so. Why not call Greg Tannel and see if he can help you.

Those old Remington 722's are great rifles and yours deserves to be repaired properly. I like to keep vintage firearms in original condition as much as possible, i.e., matching serial numbers on bolts, receivers etc.

If you are unable to work something out with Greg, I'm sure there are gunsmiths there in Canada that do quality work. Ask around; perhaps someone will chime in with a suggestion.

Good luck with the project. :)

Gene Beggs
 
hi again gene, well unfortunately if it attaches to a gun it is prohibited to ship from u.s. to Canada that means scopes as well the only thing excluded is stock's, i used to get some gun parts from numrich many years ago with no problems. but since sept 11 that all changed. i found out when i wanted a spring for an old stevens 22 i have but could not have it shipped. then i tried to get a scope, not happening!!! the gun smith i am referring to is about a 15 minute drive outside the city i live which is fine, it's just the wait as he is super busy all the time. there are others but it's a pack a lunch drive and i have no idea on the quality work they do.

oh well this is only a small glitch i will find someone reputable to do the work for me, and perhaps like you said maybe someone else may chime in. i am with you on trying to keep things original. but the reason i finished the stock was, i got away with buying my wife a gun for our anniversary. so i figured after 24 years the least i could do was make it look a little newer LOL. i just wouldn't try that on the silver anniversary.

best regards to you and all
Dan
 
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