Step six. The powder charge. This is the step where careless
hand loaders get into trouble. It is essential that the information contained in the
reloading manual you are using be followed. Never start with maximum loads. It is
recommended that you start ten percent below maximum and work up to a point where pressure
signs begin to show. Every firearm handles pressure differently. A load developed in one
rifle showing no signs of pressure when fired, may, in another rifle of the same caliber
show excessive pressure signs. We will discuss what to look for on pressure signs further
on.
The two essential tools you need in
determining the correct amount of powder are a good scale and a powder measure. Remember,
setting your scale and powder measure for some specific powder does not mean that by
changing powders the weight will be the same. In other words, a measure set to drop five
grains of Unique will not necessarily drop the same weight of another powder at the same
setting. Changing powders requires re-weighing and re-setting the powder measure. When
filling cases with powder I like to fill a number of them and place them in a loading
block. This allows for visual inspection to make sure the powder level is the same in all
cases prior to seating the bullet.
Step seven. Seating the
bullet. The correct seating depth can be determined using a full length, empty, unprimed
case with the bullet seated out too far. Chamber the dummy round carefully and extract it
from the chamber. Look for marks on the bullet made by the rifling. Seat the bullet in
slightly farther, then color the bullet with a marker and re chamber the dummy round.
Continue this process until the rifling marks do not appear. The seating depth obtained
just short of the rifling usually gives the best accuracy in most rifles. Some rifles may
shoot better with some slight variation to this, but this is a good guide to work with.
Magazine length may have a bearing on
overall length of the cartridge and may require seating the bullet deeper to accommodate a
short magazine. After I have determined how deep the bullet should be seated with the
dummy round I usually make up four or five more dummy rounds and cycle them through the
action to make sure they operate smoothly prior to loading the finished product. A
complete discussion of setting your seating die, crimping, seating depth for bullets used
in tubular magazines etc. Are usually in the instructions with your dies or in your
reloading manual. Follow them closely.
Trouble Shooting. A quick
review here should help to eliminate any problems.
1. After sizing, chamber a dummy round to see if everything operates smoothly.
2. Check for high primers
3. Visually inspect powder levels before seating bullets.
4. Seat bullets carefully and cycle dummy rounds through to check for smooth operation
5. Work up to maximum loads. I usually load in increments of one half grain, three to five
rounds per increment until signs of pressure appear. Usually the first sign to appear is
around the primer. If you look at where the firing pin strikes the primer, you will see
the primer begin to flatten and the indentation made by the firing pin will have ridges
around it instead of being smooth and rounded. See photos. At this point I stop. Going up
another half grain accomplishes little.
Other signs can be hard extraction. A ring formed around the case just forward of
the head of the case, and blown primers are the most common signs. I have always found
that watching the primer has been the best way for me to see the first signs of pressure.
Reloading can be a great hobby. It will
give you ammunition equal to or better than most factory loads at a fraction of the cost.
By following the rules and using good common sense it is safe and will give you many hours
of enjoyment.
-----> Read
Reloading Part 1
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