Originally Posted by JP100
Sounds like its worth it the long run.
Is it hard to make core bonded projectiles that are good???
Man everyones guns on here make mine look like it was from the ark haha.
That is a awesome set up. How could ya miss??haha
All I have is a harris bipod/rolled up jersy for my front"mount" and a beanie for my rear "mono pod" haha.
There is nothing wrong with an Omark 44 . Mine would be an Omark 44 if the action had a screw in barrel . The Omark is more accurately made than most war surplus Mauser 98's are .
Most of the crap I have for this gun would never go into the field . Having multiple platforms just comes in handy at different places like the range . In the field I would just use the bi-pod and the rear mono-pod mainly .
However if I was walking about a lot I would carry a different gun as this sucker is way too heavy.
You have a big advantage over most you live in a place that is near game . Although I would have to look up where Ward is as I must confess I have not heard of it and I thought I new NZ fairly well .
From memory ( and I have a very good memory for maps ) the main goat ranges were North Island , East of Whanganui NP area , Upper hut area . South island , Glenorchy area , Nelson area . and quite a few smaller locations .
Without cheating and looking up google I would say you have to live near one of those four main goat areas. I could look back at your photos and from the topography narrow it down a bit more but then you would think I cheated for sure .
It is harder to make an accurate core bonded bullet than a standard core bullet.
However the way I do it is less problematic than some of the other processes .
The secret is thorough cleaning of the inside of the jacket , thorough application of flux but without leaving a pool in the bottom of the jacket , thorough heating and melting of the core material to exclude all air and flux gas bubbles .
Holding of the jacket very vertical while it is heated and cooling .
Then when cool , thorough removal of flux residue ( most difficult part ) .
Then the real secret is seat the core as normal with a punch that has a small conical raised centre . The reason I do this is when the lead alloy cools in a bonded jacket it leaves a depression or small hole in the centre of the core surface . This is out of balance with the centre axis of the bullet .
The raised centre punch removes the out off balance structure by pressing in a concentric structure as the jacket is core seated and expanded up to the die diameter. Point forming operation is as normal.
However no matter how well you core bond a bullet some accuracy is lost but it can be minimised to a point that when taking into consideration that a core bonded bullet is going to be used on a larger game animal at shorter ranges not a small varmint . The main problem is small areas that may contain trapped flux and when the bullet is point formed the core material that flows forward to form the Ogive is not bonded anymore , it is kind of a balloon of lead alloy being extruded forward to fill the ogive . So it is possible it can extrude forward in a non concentric manner to fill the Ogive and result in a core surface that is not square across the axis of the bullet . I have found that it is better to try and fill the Ogive as much as possible rather than leave a core low in the bullet . The smaller the diameter of the finish of the core the less it can be out of balance. Providing the Ogive has filled properly . The loss is not that important over shorter ranges on big game . Hunting at long range generally requires a different class of high BC bullet anyway .
I generally don't miss game because I tend to only take shots that I know I can make within my range capabilities , however I do have off days when the gun will not shoot, ha ha. However with this gun I am expecting to extend my range capabilities a bit more from a more static firing position . A new more powerful scope is going to help a lot eventually .
This is the 30 cal bullets I make at the moment. You can't see the end of the core in the 180 grain bullet because it has a small amount of nail polish on the end of the core to identify a core bonded from a non bonded . NO I don't paint my nails .
The Meplats look larger than they actually are due to being close to the camera .