.300 ammo

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All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should treated as suspect and not used.

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Forum rules
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.

Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
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hobbesy
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.300 ammo

#1 Post by hobbesy »

Anyone know if there's any stock of .300 blackout factory ammo anywhere and how much?

Cheers

Rob
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dodgyrog
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Re: .300 ammo

#2 Post by dodgyrog »

I can't say I've ever seen it advertised - maybe just load your own?
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hobbesy
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Re: .300 ammo

#3 Post by hobbesy »

dodgyrog wrote:I can't say I've ever seen it advertised - maybe just load your own?
I generally do but having a few issues with grouping so I want to start afresh using factory ammo then reload those cases and see how they stand up.

Rob
S&W M&P 15-22
Stoeger Sec 1
Adler a110 Sec 1
Winchester 94 .357,
Marlin 45-70
Savage 10 FP-SR .223
AI AE .308
.357 Westlake Alpha

Have slots open for.....
.22 LB pistol
.22LR rifle
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dodgyrog
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Re: .300 ammo

#4 Post by dodgyrog »

That's a WHOLE different problem. ain't it!
Go back to basics (sorry, not wishing to sound like a smart arse)
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dromia
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Re: .300 ammo

#5 Post by dromia »

When I get a new, to me, gun I like to put 50-100 factory rounds through it just to give me a benchmark for its performance also you get nice fireformed once fired brass.

How ever in this case I wish you luck in sourcing factory ammunition for the 300 Blackout, Hornady make it so a call to Hannams could be worth a try.
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Re: .300 ammo

#6 Post by Swamp Donkey »

Ive not found any yet in the 6 months or so ive had mine. 18gr of h110 under a 110vmax in either lapua or converted ggg brass works well for me.
hobbesy
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Re: .300 ammo

#7 Post by hobbesy »

Thanks, want to get a group at 25 to start off with. Do you have any cases (have to be .300 and not converted) this would at least give me a start.
S&W M&P 15-22
Stoeger Sec 1
Adler a110 Sec 1
Winchester 94 .357,
Marlin 45-70
Savage 10 FP-SR .223
AI AE .308
.357 Westlake Alpha

Have slots open for.....
.22 LB pistol
.22LR rifle
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Re: .300 ammo

#8 Post by Mattnall »

I have found I get the most consistent reloads using .221FB brass necked up, the .223 cut down always needed a lot more work to get the neck tension/thickness consistent.
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ovenpaa
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Re: .300 ammo

#9 Post by ovenpaa »

Have you trued RUAG, I have a feeling they manufacture .300 Blackout.
/d

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Re: .300 ammo

#10 Post by ovy »

I know that Gun_Tec in Shobdon Leominster had factory .300BLK ammo in stock a few weeks ago. The guys who run it are big BLK shooters.
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