retumbo in a 300wm

bigry26

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Dec 11, 2011
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Creswell, Or
Is anyone using retumbo with 180 gr ab in a 300wm? I am seeing guys running it in the heavys 200+. Is it too slow with the lighter bullets? I want to try to reduce the powders that I buy thanks
 

Lefty7mmstw

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May 13, 2012
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Dakota del norte
Is anyone using retumbo with 180 gr ab in a 300wm? I am seeing guys running it in the heavys 200+. Is it too slow with the lighter bullets? I want to try to reduce the powders that I buy thanks
Yes it's possible with 180's. There was just a thread on this a while back. My brother was doing this for a couple of year when he had a 300win. He was using data for 200 grain bullets. Shot very well.
 

jsthntn247

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Jan 14, 2009
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I would say it's too slow for the 180's. H-1000 is about as slow as I would go for 180 grainers.
 

Lefty7mmstw

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May 13, 2012
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Dakota del norte
I would say it's too slow for the 180's. H-1000 is about as slow as I would go for 180 grainers.
Yes it's a compressed charge but it'll go like hell. His rifle was doing 3100 fps on 200 grain bullets with retumbo and over 3150 with 180's. Great accuracy but it recoiled plenty stiff in a #1
 

bigry26

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Dec 11, 2011
Messages
239
Location
Creswell, Or
I am using h4831sc in it now and am getting 3050. It is the only rifle I load for using that powder and I load 3 others with retumbo.
 

MSLRHunter

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Oct 3, 2009
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397
Location
Northeast MS
I tried retumbo in my 300wm but the load was so compressed that it actually was pushing the bullet up in the case after seating. Plus, it never shot great in mine either, but I now some that use it. BTW, I was loading 210 vld.
 

brentc

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Apr 3, 2009
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2,399
Are you stuck on 180s? The heavier bullets offer significant downrange advantages over the 180. If you want to use Retumbo, spend the $25 to buy a box of Berger 215s or 230s and turn that 300 WM loose.

I'm using Retumbo with 215 and 230 hybrids. The rifle loves it. I'm pushing the 215 at 2940 and the 230s at 2800 out of a 26" Rem 5r. My 215 load is 77.6 with slight crunch when seating. My 230 load is 75.5 also with slight crunch. I can only imagine the amount of compression you'd have with a 180. I could be wrong though.
 

brentc

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Apr 3, 2009
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2,399
It's a fantastic bullet. Easy to load and the performance in the 300 WM is almost unbelievable.
 

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