Flick me a pm or text bro :thumbsup:
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Big cheers to @TARGEX for the hook up, will get a ladder loaded up tomorrow and see how they go. Got high hopes after all the rave reviews these pills get :cool: would also be keen on trying the 175gn Targex when they are available again.
Attachment 198067
apparently the factory winny 180 gr Accubond 300 WSM load has shot some very good groups 1 1/4" at 400 yrds
It was my 300 wsm that james shot the group with.
He has ordered some in for himself etc as i lent him 3 boxes.
Doing a bit over 2900 on a 21 inch barrel
Winchester supreme 180 grain accubonds
I've shot plenty of good groups and developed plenty of sub moa loads, I'm sure I'll get it sussed. Just tricky finding projectiles I can get reliably that will perform at the velocity I can achieve is a bit of a juggle but I'm enjoying the process.
I certainly won't be shooting factory ammo when I can load myself for a fraction of the cost....that is pretty impressive for factory ammo with a decent projectile to boot
Back on task.....loaded up a charge ladder this afternoon.
Thanks to @striker for the GRT specs.
Hopefully get out tomorrow to shoot them weather permitting....
62gn-63.5gn going in .5gn increments. Fingers crossed
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now my good buddy...WHEN you have finished pissing around getting your load sorted and want to really try them out......Man do I have the place to take you..cold frosty morning up at sparrows fart and the wallabies will be out ,like the sun sluts they are...ranges from 50yard out to as far as you dare...best we have done was seeing 23 from one spot at same time.... who cares if its a big round and might cost a wee bit ,there is NOTHING that will boost your faith and confidence like tipping over/blowing up some hoppersAttachment 198203
Finally cracked it :cool:
After not getting the velocity I wanted outta the 200gn eldx I have to admit I was starting to wonder if my super short 300wsm might've been a bit ambitious.
As you'll know I ordered some targex 190gn to try.
I loaded up a charge weight ladder based on some GRT calculations provided by @striker now I'm not gonna lie my charge weight ladder didn't inspire confidence :yaeh am not durnk:
I got good velocity but hit pressure quite early and considering I loaded my ladder to not be near pressure I was a little surprised.
What I also noticed was that I was getting weird velocity spikes, I couldn't place the culprit and even though I was shooting for es not groups I was also quite disappointed that none of the charges shot anything close to a respectable group.
So charge weight ladder was all loaded to saami length 2.85 COAL 3 at each weight.
62gn velocity 2719, 2718 and 2786 fps
62.5gn velocity 2775, error, error :pissed off:
63gn velocity 2741, 2778, 2792 (pressure)
63.5gn didn't shoot as heavy bolt and flat primers previous load
As you can see velocity was a bit all over the show and even though I had a wee spike at 62gn I decided to do a seating depth ladder at 62gn then tweak the charge weight if needed after that.
So going off the info Berger punlishes on their bullets I loaded up a ladder all at 62gn but varied seating depth from 10thou off lands out to a massive 130thou off the lands :o
I was sceptical that the bigger jumps would shoot but this is what Berger swear by so worth a crack.
10thou: 2756, 2738, 2718
50thou: 2721, 2729, 2754
90thou: 2744, 2734, 2736
130thou: 2736, 2703, 2742
So 10, 50 and 130thou all shot similar sized groups and not particularly great which is no shock looking at the velocity spreads.
However 90tho shot a group just over 1/2 " and interestingly the velocity spread dropped to a very acceptable 10fps.
That'll do nicely, velocity was plenty enough for what I want, accuracy is on point and this should be well below pressure.
What I found interesting was that the velocity spikes seem to coincide with the seating depths that didn't shoot well.
Remember all the seating depth ladder are at the same charge weight.
Anyway, I need to load up a few more confirmation rounds just to make sure it isn't a fluke and also shoot them over a labrader as all thus data has been gathered shooting over an optical chrono which whilst it gives consistent data the velocity can vary depending on conditions.
Here are the seating depth targets.
10thou
Attachment 198364
50thou
Attachment 198365
90thou
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130thou
Attachment 198367
Why the obsession with ES if its only going to be a 500 od meter gun?
What's also interesting is that berger state in reference to the seating depth test "The remarkable reality of this test is that one of these 4 COALs will outperform the other three by a considerable margin."
I was sceptical but the evidence is quite stark :pacman:
Here's a link https://bergerbullets.com/getting-th...in-your-rifle/
I've done that Berger test a few times and it definitely shows the sweet spot.
Heres one with 215 hybrids which clearly shows -10 as best.
Attachment 198372
I did it with the 208 amax and -90 was on the money but havnt got a picture of that one
To put this load in perspective at 500y I am still carrying 2000fps and 1687ft-lbs which will be ample knock down.
I don't dip below 1800fps till 700y where I'll still be carrying nearly 1300ft-lbs
The next hurdle will be to see how the virgin brass loads perform vs the reloaded brass I've been using for the load developement.....
Either way I'll load up a few of each and run them over a labradar this weekend and report back :thumbsup:
Now redo the ladder all at 90thou
I totally agree have seen it myself, I'll still stick with what I'm doing as clearly I have achieved the results I was aiming for :P
If there was a magic way to develop a load without all the dark arts and testing I'd be all for it but till then my way works for me :yaeh am not durnk:
Good effort, but you should have just got a Tikka and loaded to mag length eh.
Now to shoot some creatures.
I have always loaded to max mag length in my a7 for starting point and never needed to adjust seating depth, funy this didn't like mag length at all. I've always done charge weight ladders first when working up aload but maybe @GWH has a point maybe I should be doing seating depth first over a mild charge :o