30-30 level loads in 308

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30-30 level loads in 308

Post by mickb » 05 Nov 2024, 10:48 pm

Hi fellas, anyone got load data for the above power level in 308, also preferably with 30-30 type bullets. Eg 150, 170 grains etc.
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Re: 30-30 level loads in 308

Post by bladeracer » 06 Nov 2024, 2:10 am

mickb wrote:Hi fellas, anyone got load data for the above power level in 308, also preferably with 30-30 type bullets. Eg 150, 170 grains etc.


.30-30 is going to push 150gn bullets at roughly 2350fps, and 170gn at roughly 2150fps, depending on powder choices and barrel length.
ADI's .308 starting loads put those bullet weights around 2500-2600fps and 2450-2500fps depending on powder choice, so I would just drop two or three grains below the starting loads with whatever powder you're using. That'll get you into the ballpark. If you want to exactly duplicate a specific load you would have to shoot the load in the .30-30 and chrono it, then adjust the .308 load to match that velocity.
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Re: 30-30 level loads in 308

Post by Oldbloke » 06 Nov 2024, 6:15 am

bladeracer wrote:
mickb wrote:Hi fellas, anyone got load data for the above power level in 308, also preferably with 30-30 type bullets. Eg 150, 170 grains etc.


.30-30 is going to push 150gn bullets at roughly 2350fps, and 170gn at roughly 2150fps, depending on powder choices and barrel length.
ADI's .308 starting loads put those bullet weights around 2500-2600fps and 2450-2500fps depending on powder choice, so I would just drop two or three grains below the starting loads with whatever powder you're using. That'll get you into the ballpark. If you want to exactly duplicate a specific load you would have to shoot the load in the .30-30 and chrono it, then adjust the .308 load to match that velocity.


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Re: 30-30 level loads in 308

Post by Wapiti » 06 Nov 2024, 7:12 am

]Be careful dropping powder loads in the 308 just simply 2-3 grains below minimum in loading manuals. I'd say, do not do it. with just any powder, I'd research what SEE or Secondary Explosion Effect is, Nick Harvey explains this phenomenon very well, and how to get around it.

If you're not after real low powered loads in your 308, like ones using Trailboss which is almost impossible to find, and really are after say, 2300fps from your 308, look up the ADI recommendation for these loads using ONLY 2206H.

This particular powder can be safely loaded to these levels and they have loading data especially for what you ask. Look it up for your own safety.
We have done quite a bit of this shooting, at critters along the river, using 30/30 projectiles as well. Great fun and the bait bring the pigs into the pig traps like you wouldn't believe.
Last edited by Wapiti on 06 Nov 2024, 10:37 am, edited 1 time in total.
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Re: 30-30 level loads in 308

Post by Wapiti » 06 Nov 2024, 7:19 am

Example...
Attachments
Reduced loads 60% max 2206H.JPG
Reduced loads 60% max 2206H.JPG (72.59 KiB) Viewed 823 times
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Re: 30-30 level loads in 308

Post by Oldbloke » 06 Nov 2024, 7:33 am

If you look at the Hodgden Web site they recommend subsonic loads using 2206H with heavy bullets. (H4895) These loads are as low as about 30% of the max, not 60% that ADI talks about.

Surprising isn't it!

For sometime now, ADI states in their manual any powder can be loaded to 75% of max. This is typically well below starting loads. Look it up.


ADI 75% Minimum load.JPG
ADI 75% Minimum load.JPG (38.18 KiB) Viewed 822 times


Down loading a 7mmRem mag with 2217 might be might be another matter.
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Re: 30-30 level loads in 308

Post by Wapiti » 06 Nov 2024, 7:48 am

That attachment I put up is from the ADI reloading manual to reinforce my own handloading results that we've actually used, not just copied/pasted info I've not proven. Because online it seems everybody wants to be the biggest monkey in the cage.
I'm not after trying to win a discussion, just make sure nobody comes to grief.
And I'm speaking from my own experience hopefully to help others. Take it all as you will, and good luck.
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Re: 30-30 level loads in 308

Post by Oldbloke » 06 Nov 2024, 8:06 am

My attachment also from the ADI manual.
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Re: 30-30 level loads in 308

Post by bladeracer » 06 Nov 2024, 8:12 am

Wapiti wrote:]Be careful dropping powder loads in the 308 just simply 2-3 grains below minimum in loading manuals. I'd say, do not do it. with just any powder, I'd research what SEE or Secondary Explosion Effect is, Nick Harvey explains this phenomenon very well, and how to get around it.

If you're not after real low powered loads in your 308, like ones using Trailboss which is almost impossible to find, and really are after say, 2300fps from your 308, look up the ADI recommendation for these loads using ONLY 2206H.

This particular powder can be safely loaded to these levels and they have loading data especially for what you ask. Look it up for your own safety.
We have done quite a bit of this shooting, at huge carp in the river, using 30/30 projectiles as well. Great fun and the carp bring the pigs into the pig traps like you wouldn't believe.


Very few load data list _minimum_ loads, they just list _starting_ loads, generally about 10% below their maximum load. You can certainly go lower if you want to. When a powder is dangerous to reduce too low it will state very clearly in the load data "Do not reduce this load!", or words to that effect. This will usually be because it's a very slow powder and you're loading a very large cartridge with it.
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Re: 30-30 level loads in 308

Post by Billo » 06 Nov 2024, 9:53 am

307 Winchester data is a smart place to start looking

49gr of 2213SC will give you the result youre looking for with the 150gr at around 2400fps. :thumbsup:

47gr of 2209 should also be suitable with the 170gr at around 2380fps, drop to around 45gr for 2200fps
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Re: 30-30 level loads in 308

Post by No1_49er » 06 Nov 2024, 2:01 pm

Oldbloke wrote:If you look at the Hodgden Web site they recommend subsonic loads using 2206H with heavy bullets. (H4895) These loads are as low as about 30% of the max, not 60% that ADI talks about.

Surprising isn't it!

For sometime now, ADI states in their manual any powder can be loaded to 75% of max. This is typically well below starting loads. Look it up.


ADI 75% Minimum load.JPG


Down loading a 7mmRem mag with 2217 might be might be another matter.

I think you have made a serious error re' the 75%.
ADI quite clearly says "should not be reduced to below 75% OF CASE CAPACITY.
It DOES NOT say 75% of maximum (recommended charge).
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Re: 30-30 level loads in 308

Post by Oldbloke » 06 Nov 2024, 2:28 pm

Your right, what's the difference?
1 grain, 2 grains?

Edit: it's a vague term IMO.
Is capacity:
To the base of the neck?
To the top of the neck?

Some max charges are compressed.
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Re: 30-30 level loads in 308

Post by mickb » 06 Nov 2024, 4:10 pm

Thanks fellas. I have read all about Secondary explosions which is why I dont fool about with anything too low.

307 Win loads are a clever idea Billo, nice work there
.
You stimulated me to also check with 30-40 krag which is same capacity as 308 win and has just the loads I need off hodgons site

H4831 which is Ar2213SC I believe. 180 grain SP, 39.2 grains, 1970fps up to loads for 2400fps. Covers all the low end I need, perfect and done!
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Re: 30-30 level loads in 308

Post by Billo » 06 Nov 2024, 5:07 pm

Hey Mickb yeah the 307W never gets any attention in Oz but with a similar case capacity to the 308 and used with Cast bullets there is plenty of good data :drinks:
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Re: 30-30 level loads in 308

Post by bladeracer » 06 Nov 2024, 5:14 pm

No1_49er wrote:
Oldbloke wrote:If you look at the Hodgden Web site they recommend subsonic loads using 2206H with heavy bullets. (H4895) These loads are as low as about 30% of the max, not 60% that ADI talks about.

Surprising isn't it!

For sometime now, ADI states in their manual any powder can be loaded to 75% of max. This is typically well below starting loads. Look it up.


ADI 75% Minimum load.JPG


Down loading a 7mmRem mag with 2217 might be might be another matter.

I think you have made a serious error re' the 75%.
ADI quite clearly says "should not be reduced to below 75% OF CASE CAPACITY.
It DOES NOT say 75% of maximum (recommended charge).


How do you work with case capacity? Case capacity is measured to the case mouth, in grains of H2O, not grains of whichever powder you are using.
You can load AR2206H as low as you want to. The most that will happen is you'll see inconsistent burn and if you keep going down eventually the bullets will stop in the bore.
AR2213SC, AR2217, AR2225 are all slow powders and should not be reduced by large degrees in very large capacity cases. A few grains below starting loads is fine.
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Re: 30-30 level loads in 308

Post by bigpete » 09 Nov 2024, 6:13 am

I gotta ask,why do you want to load it down so much ?
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Re: 30-30 level loads in 308

Post by mickb » 09 Nov 2024, 12:36 pm

its a reasonable question mate. Really no vital purpose to it, just 30-30 power and the benefits of less noise/powder/barrel wear and more accurate in a bolt action. I was thinking a takedown 308 BLR at 30-30 power would make a very handy and quickshooting backpack/scrub gun.
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Re: 30-30 level loads in 308

Post by bigpete » 09 Nov 2024, 12:58 pm

Fair enough. I've loaded 170gn sierra flat points at 2600 and they worked very well in my 308
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