Compressed loads

takbok

Well-Known Member
Hi guys, have any of you ever used a compressed load where the powder fills the case completely. This is a Vihtavuori recommended maximum load of 69.9gr N165 in a .270 Norma case for 100gr bullets. I used a straw to help drop the powder into the case as I was having trouble getting it all in. I'm not planning on loading this in the near future but just wondered how compressed some of your loads are with slow burning powders. In case you're wondering, I'm not planning on starting with this max load.
 

Twts

Well-Known Member
I tried getting Muir's recommended hornet load of lilgun into an rws case and it looked like an ice cream cone!!! - still shot ok though.
 

takbok

Well-Known Member
Well, the data says N165 will give really good velocity. I'll report back when I get the chance to try it out. I'm going to try it behind 110gr GS Custom's if the recommended faster burning powder doesn't work out.
 

Southern

Well-Known Member
Is this a .270 Win load in Norma brass?
If so, it requires so much powder because that is too slow a powder for a 100-gr bullet.
You can get 3,500 fps from
54.0 gr RL-15
57.0 gr W-760 or H-414
60.0 gr 4350
54.0 gr Varget
50.0 gr VV N-150

and a more accurate load if you back off 2 grains and 100 fps from each of those.
 

takbok

Well-Known Member
Yes, it's a .270 Winchester. Thanks for the recommendations - I do have faster burning IMR4320 (Specifically for the drive band copper bullets), but just thought I'd also try the N165 because I have some. It's right up at the top velocity wise in the Lee manual so there can't be any harm in trying it.
 

Southern

Well-Known Member
How much velocity do you "need"?

I don't load the .270 that hot. Right now, I am getting ready to load some 110-gr HPBT match bullets for the 6.8mm AR-15, for my .270s, for practice rounds, hoping to find accuracy somewhere around normal 130-gr rounds, about 3,000 to 3,100 fps.
 

takbok

Well-Known Member
Hi, I just want to see what velocity I can get. The maximum recommended velocity for the 110gr GS Custom's is 3475 fps with IMR4320 - will just work up the load and see where we get to. I don't see the point in not getting the best velocity I can out of these copper bullets, as meat damage is not meant to be an issue with them at high velocities. And if I can get a flatter shooting, more wind defying round, I'll be happy. That said, I don't "need" any of this, it's just good fun in itself.
 

Muir

Well-Known Member
Nothing wrong with compressed loads provided they are the right powder and charge weight.~Muir
 

bewsher500

Well-Known Member
Some of my loads are compressed, notably the .222 using n133, 300wm with h1000

the 100gr .270 better suits n160
 

bewsher500

Well-Known Member
A little
but I have over 300 of them so I am about to use them a lot more!

I use 130 normally but a 100gr doing a moderate 3000-3100 will sort most things out I am guessing!
 

Beserk

Well-Known Member
I have loaded a few guns with a compressed load but if the powder goes above the base of the neck/shoulder I stop!

You have to bear in mind that different makes of cases have different case capacities! these can vary by a few gr's of powder! and this is where the load data's don't take into account.
 

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