7mm rem mag light loads

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Re: 7mm rem mag light loads

Post by bladeracer » 30 Nov 2017, 1:51 pm

marksman wrote:
bladeracer wrote:
marksman wrote:
bladeracer wrote:Regarding Trailboss, I'm shooting the Speer Hotcore 145gn on 10.5gn of TB at about 1150fps in 7mm-08.


are you using a can


I don't need a can, the cartridge is very quiet.


great idea :drinks:


It would kill most things with good shot placement into the brain, but it doesn't deform at this velocity so it's not for hunting.
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Re: 7mm rem mag light loads

Post by marksman » 30 Nov 2017, 2:06 pm

I work occasionally with a pro hunter who uses cans and it has to be a brain shot at reasonable distances, no more than 200 but most are under 100
lots of projectile trialling to see what works emphatically, usually seirra's are found to work best
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Re: 7mm rem mag light loads

Post by marksman » 30 Nov 2017, 2:16 pm

for those who are interested in finding out more on SEE
http://www.reloadammo.com/liteload.htm
a rifle blow up in hand loads is usually put down to a double charge but most of the time you could not put a double charge in the case
a lot of reloaders believe you cannot blow up a rifle with an under charge

a good one on prevention
http://www.guns.com/2011/07/31/handload ... on-effect/
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Re: 7mm rem mag light loads

Post by bladeracer » 30 Nov 2017, 2:52 pm

marksman wrote:I work occasionally with a pro hunter who uses cans and it has to be a brain shot at reasonable distances, no more than 200 but most are under 100
lots of projectile trialling to see what works emphatically, usually seirra's are found to work best


Yes, if he's also using subsonic ammo. But you don't have to use subsonic ammo through a suppressor.
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Re: 7mm rem mag light loads

Post by marksman » 30 Nov 2017, 3:45 pm

both are used, the subsonic where required for anonymity although there is still noise and full house loads that are not quietened at all
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Re: 7mm rem mag light loads

Post by Baronvonrort » 30 Nov 2017, 6:46 pm

Cherza wrote:
bladeracer wrote:
Cherza wrote:Hi there, can anyone help with some light load data for the 7mm remington magnum please.
Sam


Light in what way? Low velocity or low recoil, or just generally less potent than factory?
Have you got Trailboss?

Low recoil but lot too low in velocity if thats possible.
Looked a trail boss data may be too light though do you think? The velocity is verry low I dont think I should go quite that low.
Thanks


The best place to look would be in the ADI guide- page 142 http://www.adi-powders.com.au/handloaders/pdfs/130117_Handloaders_guide_6th_edition_WEB.pdf

If chasing lower recoil then try the 100gr Sierra hollow points around minimum load or up to the Nosler 120gr, the lighter projectiles around min load will be lowest recoil.

The loads around minimum will also help with barrel life, if recoil is a problem you could try a muzzle brake.
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Re: 7mm rem mag light loads

Post by Cherza » 01 Dec 2017, 2:09 am

marksman wrote:for those who are interested in finding out more on SEE
http://www.reloadammo.com/liteload.htm
a rifle blow up in hand loads is usually put down to a double charge but most of the time you could not put a double charge in the case
a lot of reloaders believe you cannot blow up a rifle with an under charge

a good one on prevention
http://www.guns.com/2011/07/31/handload ... on-effect/

Interesting
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Re: 7mm rem mag light loads

Post by Cherza » 01 Dec 2017, 2:23 am

Found this regarding safety is this ok or not?
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Screenshot_20171129-203439-1024x1820.png
Was thinking about something like this
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Re: 7mm rem mag light loads

Post by Gamerancher » 01 Dec 2017, 8:10 am

That is basically a load that you would use in a 7-08. H4895 is the same as AR2206H. I use a similar load in a .35 Winchester which has a slightly smaller case capacity than your 7mm Rem Mag. It is a very mild load behind a 130gr bullet in 7mm-08.
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Re: 7mm rem mag light loads

Post by Cherza » 01 Dec 2017, 8:56 am

So 41.2 grains will that only half fill the case with powder?
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Re: 7mm rem mag light loads

Post by Gamerancher » 01 Dec 2017, 9:48 am

Dunno, weigh out a load and put it in a case. See where it fills the case to. I don't have a 7mm RM case to see for myself.
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Re: 7mm rem mag light loads

Post by Gwion » 01 Dec 2017, 11:38 am

bentaz wrote:
Cherza wrote:Hi there, can anyone help with some light load data for the 7mm remington magnum please.
Sam

Just curious as to why you'd buy a magnum cal and then want to load it down?


Yep. I don't understand the whole concept of this post...
Yes, i load down my 223 to around 22wrm but i wouldn't do it with my 7mm.
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Re: 7mm rem mag light loads

Post by Gwion » 01 Dec 2017, 11:56 am

As you say, you can never have too many guns so go buy another one in 7-08 and load that min with 110gn bullets and you'll have a low recoil 7mm to use. Load your 7remmag with 175gn ELDX to mid range for those bigger, tougher critters.
Problem solved. Two birds, one stone. Lower recoil and more guns. What more could you want??? :lol:
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Re: 7mm rem mag light loads

Post by Oldbloke » 01 Dec 2017, 6:25 pm

AR2206H can be used for reduced loads. But only if it listed for that cartridge. In this case ADI do not recommend it.

Contact ADI before using it.
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Re: 7mm rem mag light loads

Post by bladeracer » 01 Dec 2017, 6:38 pm

straightshooter wrote:Light loads in magnum cases can be a recipe for disaster.
There is an effect something like detonation that has been known to destroy magnum cartridge chambered rifles that have been very underloaded.
The process goes something like this:
The primer ignites correctly but it's flash is somewhat dissipated in the empty space in the case. There is enough flash to burn off the deterrent coating on the powder but not enough flash to maintain smooth continuity of combustion over the whole surfaces of the propellant but nonetheless there is still some combustion. What happens is the propellent then detonates because there is no deterrent left to moderate the speed of ignition.
The answer is to use a magnum for what it was intended for.
Don't go below any reputably published minimum load.
If you really need or want something that has recoil performance like a 223 or 243 then entertain those as an option.


It's always worth repeating the information, but in this case he's really only talking about minimum loads rather than reduced loads. I don't think anybody considers using minimum load data figures to be "reduced loads".
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Re: 7mm rem mag light loads

Post by Oldbloke » 01 Dec 2017, 8:51 pm

41 grains is about 12 grains below the ADI minimum if I read it right.
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Re: 7mm rem mag light loads

Post by Cherza » 01 Dec 2017, 9:13 pm

Thanks fellas
I think I have a bit of a plan now what I will do is find some 150gr Nos part pills and load a minimum load using 55gr of AR2209.
fit it with a good recoil pad to it and add a bit of weigh to the stock.
That load will be around 2781fps
Going by a recoil calculator with a 8lb rifle the recoil will be 18.99 ftlbf
What do you all think?
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Re: 7mm rem mag light loads

Post by Oldbloke » 02 Dec 2017, 9:27 am

That makes sense. Roughly the same as a 3006. Very manageable.
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Re: 7mm rem mag light loads

Post by bladeracer » 02 Dec 2017, 1:06 pm

Oldbloke wrote:41 grains is about 12 grains below the ADI minimum if I read it right.


41gn of what powder behind what bullet?
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Re: 7mm rem mag light loads

Post by bladeracer » 02 Dec 2017, 1:26 pm

Cherza wrote:Thanks fellas
I think I have a bit of a plan now what I will do is find some 150gr Nos part pills and load a minimum load using 55gr of AR2209.
fit it with a good recoil pad to it and add a bit of weigh to the stock.
That load will be around 2781fps
Going by a recoil calculator with a 8lb rifle the recoil will be 18.99 ftlbf
What do you all think?


Probably still heavier than factory .308 ammo, but bearable for hunting.
More than I'd enjoy shooting much off a bench though.

The stock design plays a huge role in perceived recoil.
My M91/30 is painful to shoot more than a few dozen rounds, and that's only making around 15ft/lbs of recoil energy.
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Re: 7mm rem mag light loads

Post by Oldbloke » 02 Dec 2017, 7:57 pm

If you have a look at the ADI data, most starting loads are well over 50g, with just couple of exceptions. So 41gr is very light.
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Re: 7mm rem mag light loads

Post by duncan61 » 02 Dec 2017, 9:26 pm

I load 100 gn sierras on 56 grains of 2208 and the recoil is not too bad
.22 winchester .22hornet .222 .243 7mm rem mag cbc 12g
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Re: 7mm rem mag light loads

Post by Oldbloke » 03 Dec 2017, 2:35 pm

For the purpose of clarification. After asking about reduced (light) loads received this in 2014.

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Re: 7mm rem mag light loads

Post by Oldbloke » 03 Dec 2017, 2:37 pm

Also this is in the ADI manual page 31. You can load below the recommended starting load, just not too far below.

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Re: 7mm rem mag light loads

Post by Cherza » 04 Dec 2017, 4:36 pm

Awesome info Oldbloke
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Re: 7mm rem mag light loads

Post by rossfrb » 11 May 2019, 9:36 pm

Cherza wrote:We all buy stuff we dont need or cant use mate Id rather have a gun collection than pay bills


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Re: 7mm rem mag light loads

Post by SCJ429 » 11 May 2019, 10:04 pm

What was he referring to?
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Re: 7mm rem mag light loads

Post by Oldbloke » 12 May 2019, 4:40 pm

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