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New .270 Bullets
Discussion regarding the reloading of ammunition and tuning of loads for accuracy
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English Mike
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Location: Whitehaven, Cumbria, UK

PostPosted: Sat Mar 03, 2018 4:43 am    Post subject: New .270 Bullets Reply with quote

There's a company started producing monolithic bullets in the Czech Republic & they're a lot easier to get hold of over here than the US made Barnes & Hornady offerings.
Picked up a box of 130gr on Wednesday & when i get a minute I'll load some up & see how they shoot.
They also do a 150gr which they say stabilises in a 1:10 twist barrel due to the shape making it shorter than the Barnes TSX.
I'm hoping for a few of the latter to try before I buy.



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slimjim
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PostPosted: Sat Mar 03, 2018 8:49 am    Post subject: Re: New .270 Bullets Reply with quote

English Mike, looks interesting. Let us know how they perform. If you can spare a few, I can test expansion and measure BC for you.

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Elvis
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PostPosted: Sat Mar 03, 2018 10:17 am    Post subject: Re: New .270 Bullets Reply with quote

intreging..... personally I wouldnt bother with 150grn mono and would if anything look lighter rather than heavier..... the figures Slimjim put up a year or so back had me scratching my head to start with but make sense when you look harder.

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English Mike
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PostPosted: Sat Mar 03, 2018 2:09 pm    Post subject: Re: New .270 Bullets Reply with quote

slimjim wrote:
English Mike, looks interesting. Let us know how they perform. If you can spare a few, I can test expansion and measure BC for you.
I'll bring some over so long as my memory lets me. Scratch
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slimjim
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PostPosted: Sat Mar 03, 2018 8:31 pm    Post subject: Re: New .270 Bullets Reply with quote

good point, Elvis. The 150 (145) will be slower to start with and have more drag because of its shape so won't run out as well. The 130, because it should retain all its weight, will have plenty of mass to penetrate.

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Elvis
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PostPosted: Sat Mar 03, 2018 8:36 pm    Post subject: Re: New .270 Bullets Reply with quote

chuck us up the graph will ya please slim....the one with 110s on it...that was a real eye opener.

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slimjim
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PostPosted: Sun Mar 04, 2018 2:42 pm    Post subject: Re: New .270 Bullets Reply with quote

Elvis, I must be having a senior moment. Which one are you referring to?

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Elvis
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PostPosted: Mon Mar 05, 2018 2:11 am    Post subject: Re: New .270 Bullets Reply with quote

waaay back in your testing you did graph with velocity and energy figures for 110-130-150grn in .270 the 110 won hands down as the others didnt catchup/over take till out past 300 yards

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Vince
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PostPosted: Mon Mar 05, 2018 5:06 am    Post subject: Re: New .270 Bullets Reply with quote

Elvis wrote:
waaay back in your testing you did graph with velocity and energy figures for 110-130-150grn in .270 the 110 won hands down as the others didnt catchup/over take till out past 300 yards

Is this the one you are thinking of Elvis?



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Elvis
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PostPosted: Tue Mar 06, 2018 12:09 am    Post subject: Re: New .270 Bullets Reply with quote

yea nah it was a graph....with coloured lines showing energy figures for each projectile so you could compare them at a glance.

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slimjim
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PostPosted: Tue Mar 06, 2018 10:38 pm    Post subject: Re: New .270 Bullets Reply with quote

Elvis, this is one for my .270 Win. The 130 GMX (would be the same for 129 LRX) has the balance of MV and BC to pass the 110 and stay ahead of the heavier bullets.



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