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Hi Team just doing a few reloads for the 308 got to the range today in perfect conditions but buy the time id put the flags up & target up could barely open the car door, anyway I had 12 rounds loaded but 4 shots of AR2208 at 46.1grn of powder looked promising, question is how much more powder can I get in there as its already sitting in the neck & a touch over the recommended load ...anyone got a load that's similar ? projectiles are Nosler 165 ballistic tips , seated well off the lands.
I use 2206h with same pills in 16" 308 for 2650fps. Its a little laser out to 550
You can get as much powder in there as you can intill it all spills out the top to be frank.
Similar but not the same 47gr 2208 168amax lapua brass magnum primer.
dont be too concerned with light compression of powder,hey they even list compressed loads.
Where it becomes an issue is when it is compressed so much that it pushes the projectile back out or stretches the body so it wont chamber......I am sure you will have no problems going to 47 (Standard disclaimer work up and stop if any signs of excess pressure!)
Check overall length after seating and again in a few days...if it is growing that is not good pull them and go back to the drawing board,but I am sure you will have no problems there......I got growing problems at 52gr 2208 with a 130grttsx for example.
Some specialist powders like trail boss should not be compressed.
308 and laser should never be used in the same sentence!Quote:
Originally Posted by Gibo
Ok it is not the same sentence but I failed Englrish.
I use 44gns 2206H behind a 165 SGK, very accurate out of 2 rifles, can also swap for 165 SST with do difference in speed or POI, close to 2700 fps, not sure if thats up to max but powders right up to the neck.
Too true, shes a sharp wee rainbow ;)Quote:
Originally Posted by veitnamcam
As stated by others, you can probably cram more powder in if you want to, but why would you want to? Loading to max pressure or possibly beyond is to take the track of diminishing returns. Your brass doesn't last long, any extra velocity gained is mostly gone in the first 100 to 200 yards, shock stress to your action is cumulative and you risk a premature action failure which could be to you or to the poor bastard that you on-sold it to. If you are looking for better long range performance, then seek a better bullet. The highest BC bullets in 30 calibre require a larger case than the 308W to give good performance at reasonable pressures
Valid point but often book data max is well below even factory ammo speeds which of course have to be loaded to be safe in the lowest common denominator.(old worn weak actions)Quote:
Originally Posted by JWB
IMO and only my opinion (for a hunting rifle)if you are not achieving close to or above factory speeds with better accuracy then why bother reloading?
Not quite sure where you got the idea that factory ammo is faster then home loads. I'd suggest you go to the SAAMI website and see what the max pressure limits manufactures are allowed. They have to account for old actions, hand loaders don't. Try 47grn 2209 under a 208 match. Pressures are way over the spec of 50,000cup but the action is a barnard and cases binned after three reloads.
Factory ammo is often faster than book max data which is why one should work up a load to find max in your own rifle which may or may not be many grains above book max.Quote:
Originally Posted by Walker
This is the point I was trying to make.
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When I worked up a load for my 308 with 150 grain interlocks I got really sticky bolt lift at 44 grains of 2208. But this was over 20 years ago, and the listed loads for 2208 are quite different from what they used to be when comparing the ADI website to Nick Harvey's first edition. I suspect the powder has changed over the years, or maybe it is more consistent/stable now.
Where it becomes an issue is when it is compressed so much that it pushes the projectile back out or stretches the body :thumbsup: iv been having a bit of a chuckle reading that ...Quote:
Originally Posted by veitnamcam
Ok sweet il try a nice day & a bit more powder , I was hoping to seat the bullet just behind the lands but the mag wont allow it ..thanks for the reply's team.
I'm intrested to know where factory ammo is faster then reload Data. Please list where to find this information and what calibers/barrel lenghts.
Book max, and there is plenty of factory ammo shooting faster than book max especially the adi book. Superformance comes to mind ive chronied it 8n quite a few calibers and it's never been far off the box speeds in some cases it's been 50 fps faster.
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Everyone is entitled to be as innovative and adventurous as their intelligence allows. Why, I knew a chap up this way with only one arm as a result of fishing with gelly. Go for it I say, after all, what could possibly go wrong?Quote:
Originally Posted by Boaraxa
I’m running 46 GRS with a 165 sgk. Approx 2780 according to my chrony. I was thinking I was already pushing my luck - I usually don’t run at book max - don’t see the point. What’s another click or two? Shoots very well (22” sako).
52 grains is case capacity to top of neck, so 46 should be the practical limit. If you must have more speed or powder capacity a 3006 reamer is the answer, after all the 308 is just a 3006 that didnt eat its veg when it was little.
I use 49 grains, but it is quite a fine powder
Yep that velocity will be max or very close,velocity is a good indicator of pressure load data is not always.Quote:
Originally Posted by 7x64
careful does it...
I run 46gr of 2208 with sierra 165gr HPBT in my tikka t3 308 with a 16.5" barrel, 10 shots into 0.6" @ 100 is the best group but consistently shoots tight. Need to chrony it as really curious to see speeds so i can work out my drop chart.
Did a live test yesterday with the dog on a goat and needless to say the exit wound was pretty brutal albeit the shot was only 30-40m quartering away. Happy that it opened up on a small animal though rather than punch through it.
If you have access out to say 3-400 then a chrony isn't needed, or as accurate unless you spend a lot.Quote:
Originally Posted by superdiver
Yeh my accuracy was at 44.6 of 2208 with the 165. The 165 is also the accurate weight for my finnlight.
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@Gibo i do have access out to that distance so was thinking could do a drop chart and somehow figure out speed that way if possible.
Only issue is my scope is a 2.5-8 so getting sufficient zoom at 400y on a 1" target may be an issue?
Going to work in yards as scope has the B&C reticle.
8x is plenty for 4-500 . I've shot 1000 with 10x and that was getting fairly small LOL.Quote:
Originally Posted by superdiver
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Mate its pretty easy. Set up a tall target at say 300 or 400 thereabouts but you need to know the distance via rangefinder, make sure your zero at a hundy is spot on, now the target needs to be about say a metre to be safe, draw a dot about the size of a golf ball up near the top of the target board, do not dial and aim 3-5 shots at that dot, once done, measure the distance in inches from the dot to the centre of your group. Twiddle with a ballistic calculator until the drop in inch at that particular range matches and waaalah you will have your muzzle velocity . Thats all a bit mixed up but will get you there :DQuote:
Originally Posted by superdiver