Any 300-mp?

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jtkrpm
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Any 300-mp?

Post by jtkrpm » Fri Oct 22, 2021 3:11 pm

I have not seen any Alliant 300mp in the last year

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BobinNC
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Re: Any 300-mp?

Post by BobinNC » Fri Oct 22, 2021 4:03 pm

No, but the very similar Accurate #11FS is available. I just bought 5 lbs direct from Hodgdon.

https://shop.hodgdon.com/accurate

How similar?? Read the below article.

https://www.handloadermagazine.com/prop ... rofiles-12

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dellet
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Re: Any 300-mp?

Post by dellet » Fri Oct 22, 2021 7:23 pm

Of the three powders listed, slowest to fastest, 300 MP, H110/296, 11FS, there is about a 10% difference top to bottom and about a grain difference in what you need to reach a certain velocity.

If the load is 20 Grains of H110, it will take 21 of 300 MP, and 19 for 11FS.

For the most part H110 will still get you the highest velocity, Accuracy would be arguable for any of the 3.

Using H110 as the example or one to beat, you run out of case capacity with 300 MP before you can achieve the same velocity and will hit pressure signs first with 11FS.

All this seems to happen within about 100 fps, so unless you are chasing absolute maximum FPS, in times like these use what you can get.

The flash suppressant in 11FS works very well. So if shooting in low light, that would be my first choice of the 3 for both super and subs.
300 Blackout, not just for sub-sonics.

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BobinNC
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Re: Any 300-mp?

Post by BobinNC » Fri Oct 22, 2021 9:58 pm

Dellet

I respectfully disagree. I view Accurate #11FS as the slowest of the bunch, and load data provided by both Handloader and Accurate/Hodgdon (it's listed on both sites) shows it to be slower that H110/W296 and a smidge slower than 300-MP.

This data is for Hornady 110 Grain VMax for the Hornady Data Center

Hodgdon H110 0.308" 2.050" 18.4 2,191 38,900 PSI 19.4 2,286 48,400 PSI
Hodgdon Lil'Gun 0.308" 2.050" 19.9 2,368 39,700 PSI 21.0 2,474 46,400 PSI
Winchester 296 0.308" 2.050" 18.4 2,191 38,900 PSI 19.4 2,286 48,400 PSI
Accurate No. 11FSK 0.308" 2.068" 18.3 2,095 44,700 PSI 21.0 2,381 51,400 PSI

The Accurate #11FS data was developed by Accurate BTW and not Hodgdon. The Handloader article shows the history of both 300 MP and #11FS and both have their genesis as Win 297, as a slower burning brother to Win 296/H110 twins.

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dellet
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Re: Any 300-mp?

Post by dellet » Fri Oct 22, 2021 11:00 pm

BobinNC wrote:
Fri Oct 22, 2021 9:58 pm
Dellet

I respectfully disagree. I view Accurate #11FS as the slowest of the bunch, and load data provided by both Handloader and Accurate/Hodgdon (it's listed on both sites) shows it to be slower that H110/W296 and a smidge slower than 300-MP.

This data is for Hornady 110 Grain VMax for the Hornady Data Center

Hodgdon H110 0.308" 2.050" 18.4 2,191 38,900 PSI 19.4 2,286 48,400 PSI
Hodgdon Lil'Gun 0.308" 2.050" 19.9 2,368 39,700 PSI 21.0 2,474 46,400 PSI
Winchester 296 0.308" 2.050" 18.4 2,191 38,900 PSI 19.4 2,286 48,400 PSI
Accurate No. 11FSK 0.308" 2.068" 18.3 2,095 44,700 PSI 21.0 2,381 51,400 PSI

The Accurate #11FS data was developed by Accurate BTW and not Hodgdon. The Handloader article shows the history of both 300 MP and #11FS and both have their genesis as Win 297, as a slower burning brother to Win 296/H110 twins.
I’ve been shooting 11FS for about 4 years. Developed many loads comparing the three powders, I’ll hold my opinion.

The heavier the bullet, the more pronounced the differences become.

The Hodgdon data for Lil’gun has been found to be almost dangerous by many people, for whatever that might be worth. Most can’t get anywhere near max loads for many bullets listed. It gets unstable with high density loads and has pressure spikes. Accuracy compared to H110 is poor.

Don’t take my word for it. Get bullets ranging from 110-150 grains and test all four powders together. It’s always good to see others real world results.
300 Blackout, not just for sub-sonics.

jtkrpm
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Re: Any 300-mp?

Post by jtkrpm » Sat Oct 23, 2021 12:16 am

Good info guys! I’m just trying to keep it all Alliant. Though I do have enforcer on the shelf with the 2400 I have.

jtkrpm
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Re: Any 300-mp?

Post by jtkrpm » Sat Oct 23, 2021 2:21 pm

The 2400 is definitely on the fast side though and not good for max velocity.

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