no4 T bolt problem

[Peter Laidler]

Looking at that brass, there is definately something wrong with your rifle - big time!

[mrbungle]

any idea of what's going on??

i really think it is a crushed neck on the round and it does not fit in the chamber properly causing the miss fire.

[waco16]

Where those dents caused during firing or reloading?

Its difficult to see from the photo of the reloaded round if the dents are there.

Its quite common for dents like that to be caused by applying too much resizing lube to the case if full length resizing.

Another thing to check - how many times have you reloaded the brass?
After repeated resizing the cases stretch and need trimming - any good reloading manual will give you a 'trim to' length.

If you have replaced the bolt, but used the same bolt head have you checked the headspace?

[mrbungle]

the dents were cause when fired. only those round not the other 20 i shot from the same batch. i think i crimped the neck of those rounds when i seated the bullets.

i do use alot of lube when resizing.

the bolt is the one that came with the rifle. the numbers do not match the receiver but it has the M/47 stamp on the bolt head and the little ? mark on the head.

no i have not checked the headspace. i do not have the gauges to measure it.

[gsimmons]

You may want to read Peter's article on fitting a bolt as well.

[Beerhunter]

Thoroughly check that the chamber is CLEAN.

[Simon P]

With the bolt removed hold the barrel up to the light can you see if there is any embedded debris in the neck area of the chamber.

[waco16]

If all of the checks listed above fail to give any clues it might be worth checking the setting of your bullet seating die. If you are trying to apply too much crimp you could be deforming the neck of the case making the round difficult to chamber.

[mrbungle]

The chamber is clean. I think it goes back to me resizing the entire casing instead of just the neck. Then one that are deformed are the problem rounds.

[mrbungle]

got it figured out.

i was resizing the whole casing and distorting the casing shoulder and it was not fitting in the chamber right. plus garbage in the chamber, got it cleaned out thoroughly and inspected the rifle and the bolt. the rifle preformed great yesterday after redoing the loads.