Don't you just hate it when you post what somebody supposedly told you, then that person posts so that everyone knows what they actually told you?
Insite Arms fixing poorly built cooper arms rifles
- Thread starter cz0921
- Start date
Don't you just hate it when you post what somebody supposedly told you, then that person posts so that everyone knows what they actually told you?
One thing which is certain in this thread is that confusion reigns supreme. First we have the OP speaking about difficult extraction then, in the same post, talking about the chamber being too small. Of course, the entire post is difficult to understand and even more difficult to get to the point of it. Next we have some confirmation that headspace may have been a little tight when the gunsmith alludes to difficulty in closing the action. Then we have the man from Cooper talking about the issue being case head separations and/or improper dimensions in loading dies or poor reloading techniques (I can certainly believe the latter). In addition, he tells us that head clearance may be a little much but that's not their fault but the fault of the ammo manufacturer, or the reamer/ gauge maker.
Eventually someone is going to determine exactly what the true dimensions of the threads are and whether or not the threads are co-axial with the bore. It will also be determined if the chamber is round and co-axial to the bore. If there is a misalignment, there will be a determination as to whether or not the misalignment was correctable and, if so, what would have been the necessary procedure. If there was a dimensional problem which caused the issues, it will probably be determined. If an undersized barrel thread, in conjunction with an interrupted receiver thread was contributory, that determination will be made as well. As for myself, I shall wait and see.
Eventually someone is going to determine exactly what the true dimensions of the threads are and whether or not the threads are co-axial with the bore. It will also be determined if the chamber is round and co-axial to the bore. If there is a misalignment, there will be a determination as to whether or not the misalignment was correctable and, if so, what would have been the necessary procedure. If there was a dimensional problem which caused the issues, it will probably be determined. If an undersized barrel thread, in conjunction with an interrupted receiver thread was contributory, that determination will be made as well. As for myself, I shall wait and see.
Sorry to ressurect an old post but I have a cheap savage that I bought in 6.5x284. With me I had horrible sticky bolt lift with any loads near but under load data max with Hornady brass. Got horrible accuracy and no consistency. Switched to Lapua brass. No extraction issues, unbelievable stock gun accuracy best .26 with Lapua Scenar.Loaded 6 times with fairly hot loads; no sign of stress on brass. Several friends have ALL had the same issue with Hornady brass. Called Hornady and they wanted the brass and the bill of sale. They had "never heard of any issues" with their brass".
Sorry I called BS when 3 different guys have 3 different lots of brass and all do the same.
After rereading the post realized that is not the issue as the lapua 6.5 x 284 brass works and if 6.5 x 284 winchester brass was used it would just fire form when fired. I believe you can go this way but if you go the other way it could be tight as lapue and norma brass is slightly thicker.
