No.4 300 Winchester Magnum Test

[jmoore]

I've decided to try the limits of the action with some "real world" tests.

So, the caliber is going to be 300 or 303 Winchter Magnum, depending on the donor barrel, as brass is readily available (I hope) and the rim size is compatible w/ the existing bolt and extractor.

Need to set some parameters first.

Prefer to use factory ammo at first, as long as a reasonable supply can be found of partial boxes and such at the local gunstores. (If running a 303 bore, I've a large quantity of 174gr hpbt Sierra match bullets that I have no use for ootherwise as they're moly coated- if there are no objections those would be the default bullet.)

Dry cases and chamber for at least the first 100 rounds or so.

Questions:

-Headspace on the belt or the shoulder? (the second option tends to limit factory ammo to one brand as they aren't uniform- from past experience.)

-O-ring on the first shot or no? (This isn't a brass life test, but if it runs on a while I think my wallet could use the help,)

-POI observations or no? Not a great concern to me unless it indicates progressive failure of the action. Its a bother to do on a remote fire test rig.


i'd like to keep it as simple as possible, takes away from range time otherwise "productively" spent, plus I haven't a scadillion dollars- this is mostly a thought (read "costless") experiment gone horribly "real".

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.