• This Forum is for adults 18 years of age or over. By continuing to use this Forum you are confirming that you are 18 or older. No content shall be viewed by any person under 18 in California.

Concerning the integrity of a Husqvarna action after an overpressure event

I have sitting in my safe an all original HVA 1640 chambered in 6.5x55. The rifle has the aluminum bottom metal so I’m guessing it was made sometime in the late 50s to 60s. I purchased this rifle from Simpson Limited knowing that the barrel was toast, with intentions to re-barrel it in the same cartridge.

It seems this rifle has suffered some extreme event in the hands of a real moron. Starting 1/3 of the way down the barrel there begins a series of several SEVERAL bulges (pressure rings) clearly visible from the outside. I can barely imagine how this happened. Several squibs in a row? The bore repeatedly packed with mud and ice?

By my amateur eyes the action itself seems completely fine. I would like to re-barrel this rifle in 6.5x55 and load this cartridge to its full potential, since I understand the 1640 action to be considered a ‘modern’ action in terms of metallurgy and does not have the customary loading limitations of an older 96.

My questions are: is this action safe to use? And what might be done to ensure that it is/isn’t? How much pressure might be created against the action in an event like this? What would you do?
 
Pull the barrel and inspect the locking lug seats. Possibly have it (the front receiver ring) MagnaFluxed, and make my decision from those tests/inspections. I'd closely examine the locking lugs on the bolt, too,,,,,,,, possibly having them MagnaFluxed, also. Cracks aren't always visible to the 'naked eye'.
 
It’s probably fine
Worst case scenario on a Mauser is lug setback or a cracked lug on the bolt
Pull barrel, clean really well inside receiver, inspect with a bore scope , and also the bolt lugs with a magnifying glass.
Maybe blue up the bolt lugs and receiver and using an ultra fine lapping paste lap and make sure it’s full contact or seated evenly. Lug setback is never even.
 
Have a reputable Gunsmith look it over. One that’s very familiar with old Mausers.. It may not be worth putting any more money in it. It may be OK. I’d want an expert opinion before I put my face behind it!
 
Unless it is the chamber that is bulged, barrel bulges are not from high pressure but from barrel obstructions. Water, snow, mud, flies, I have seen barrels bulged by all. I have also seen barrels which have bulges as manufacturing defects. One Ferlach blank I saw looked like a snake swallowing eggs! WH
 

Upgrades & Donations

This Forum's expenses are primarily paid by member contributions. You can upgrade your Forum membership in seconds. Gold and Silver members get unlimited FREE classifieds for one year. Gold members can upload custom avatars.


Click Upgrade Membership Button ABOVE to get Gold or Silver Status.

You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.


To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.

Forum statistics

Threads
166,292
Messages
2,215,937
Members
79,519
Latest member
DW79
Back
Top