Quote:Sodakjim: The new ones are made with better materials that should easily outlast the older ones according to Winchester.
Quote:hm: I have personally put between 15,000 and 20,000 rounds through a pre-64 Mod. 70 National Match rifle that I purchased used. I might add, that I dry-fired this rifle at least an equal number of "rounds".
Have heard great things about the new Mod. 70's. Not to disagree w/SodakJim's post, but durability was not really a concern with the pre-64's IMHO.
Quote:BCB: The biggest issue is that the pre-64 Model 70 used the very old Springfield cone breaching of the 19th century for chambering and bolt fit. It's very unsafe in the event of a case rupture. And it does not support the cartridge case head as well for purely accuracy purposes as does today's flat faced breaching...
The fact that the case head is unsupported in the pre-64 Mod. 70 has long been criticized as a safety concern, but in all fairness, how many instances have been reported of such failures? How many millions of rounds have been fired in such chambers without incident? As far as cross the course target rifles are concerned, I personally prefer the cone breach to the flat breach for smooth, trouble free feeding. Of course, this is aided considerably by the controlled round feeding (which the post 64's did not have) as well.
Quote: BCB: Again, to be fair, you have a couple of very nice rifles. However if a company took to making the exact same action as the pre-64 with the cone breaching, both safety and accuracy would suffer a bunch...
Above is a 20 shot 100 yard string fired from prone position (no artificial support), iron sights which measured .922" w/the pre-64 target rifle when it still had the original Winchester barrel. Never felt the need to change the factory trigger, although did have it tuned by a good smith to the minimum 3.5# and rifle had also been bedded.
This picture is a 3" spotter placed in each bullet hole in target during a 600 yard match fired prone (iron sights,no rest) w/same action, and Mark Chandlin ss barrel. While the "group" shown measures 2.61", actual group would probably be larger due to fact the spotter is moved from shot to shot....aiming point remained the same, however. The 15th shot hit the wooden spindle which was in the previous bullet hole, splintered wooden spindle and blew a 6" hole in target face so was not able to measure the actual group.
Not claiming this is "out of the box" accuracy, but simply pointing out the potential of the action. I wouldn't be too concerned about accuracy w/pre-64 action
.
Both designs have their advantages and disadvantages as has been very well outlined by Sodakjim & BCB, but the pre-64 works for me.
Regards,
hm