in this thousand-yard rival billed challenge were hampered by a few factors mostly our budget
so we're limited to this savage axis rival which has a sporter weight bare rill and a couple other
issues but that doesn't mean that we can't take advantages in other areas one of the biggest which
we discussed in the last video is the choice of caliber so we decided instead of going with 308
that we were going to do 7 millimeter Oh 8 which is just a 308 neck down to 7 millimeter caliber
and here is our next step we are going to be using these brand new bull its from Hornady
you might have heard about the eld match bull its and the eld ex hum king bull its these are very
high bull is stick coefficient progressiles they tend to be very heavy for their caliber they're
very long and it's mostly about this new tip Hornady found out that the tips on their older
bol it's like the aim axes like this 208 grain a max here in the background that they were melting
in flight and that was causing the bull its become unsteple as they got slower and it was messing up
the bull is stick coefficient so we're going to be using these bull its in our loads and before
we actually get down to developing the loads for this rival the first thing we need to do is figure
out the cartridge overall length and to do that we need a once fired case a case that has been fired
in your rival and not yet resized is a very handy thing to have around this will allow us to figure
out the seating depth of the bull it in our gum now what I want ideally is for this bull it to
be 5 thousandths of an inch off the lands the lands are where the rifling is it's where the the
bull it will actually engage the rifling so I want just the tiniest jump from the bull it to where it
strikes the rifling and then is forced down and forced through the bare rill now to do this you
can see that the neck there really is no tension because again this was fired and stretched inside
my rival so what I'm going to have to do I want just a little bit of tension on this next that the
bull it can slide just a little bit but also stick on the way out not just fall out so what I'm going
to do is I'm going to pop it here in my press and this is the next size or die I'm not going to do a
full length resize but what I want is to give it just a little bit of neck tension and this takes
a little bit of testing so let's try just a few pounds of pressure okay so it's still very loose
that's more like it I can push and pull the bull it with my fingers but it's pretty tight I think
this will work well so here's the drill to find the seating depth I have my partially sized case
which doesn't have enough neck tension to really hold the bull it in place there's just enough to
keep it from sliding too easily and what I'm going to do is I'm going to gently place this into the
chamber of this rival I'm going to leave that bull it hanging out quite a bit because I want
the rifling to push that bull it back into the case close that down and be careful when opening
this you don't want the injector to throw your round anywhere but this right here should be the
depth to where it engages the lands now what I want is to push this back another 5 thousandths
that will be the distance that I want I don't want this actually touching the lands before I
fire it and what I'll do is I'll I'll gauge this I'll figure out how long this overall length is
and I'll run this a few more times just to bake sure that I'm not getting any weird data I'm
going to do this a few more times just see bake sure that they're all ending up the same length
then I'll take that length and push it back five thousandths now for the actual load development
I decided to go with Hodgdon Vargas which is an excellent excellent powder it's useful for
pretty much anything short action probably some long action stuff too and instead of going with
the usual ladder loads I decided to try out this optimized loads which are supposed to be better
instead of doing the usual you know you have your minimum charge and then you go up say 0.5
grains all the way up to your maximum charge and you chute groups to figure out which one is your
smallest this is something a little bit different first it's all based off your max charge right
here so the maximum load in the lea manual for Hodgdon VAR get anyway in this case with this
bull it is 41 grains of Varget powder so all of this is based off a 2% amount of this so you just
kind of back off by percents I think this is 1% down this is 1% down this is 2% down and then we
actually do go over the maximum charge for one of our loads I just have to be careful to watch for
overpressure when I'm firing if you want to learn more about optimized loads you should look up the
OCW site I'll put the link here and you can see the difference for yourself see if it's something
you might be interested in trying in the next video I will test these loads at the range you're
going to love the results subscribe to get instant updates when new videos roll out like the social
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rapidly expanding and will eventually include the competitions where we'll be testing this rifle you