7.62x39 vs 300AAC vs 6.5 Grendel

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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by JimTom » 10 Jan 2019, 2:58 am

Flyer wrote:I had a 527 full stock (lovely rifle) in 223 and disabled the set trigger so that it worked only off the main trigger. It was a great little rifle which I only sold to buy a Sako 85 in the same cailbre.

At least with the Grendel you can have a stash of 6.5 projectiles to use for that and your 6.5 Creedmoor.



Yeah that's true mate, have 95gn Vmax and 123gn SST already. Was going to get around to trying them in my Creedmoor.
Shoot straight you bastards, don’t make a mess of it!!
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by Flyer » 10 Jan 2019, 1:41 pm

According to all my books, 2209 gives the best velocity with 123gr 6.5CM bullets.

43.2gr of 2209 with 123gr Lapua Scenars shoots best in my 6.5CM Sako A7 - 0.375" 4-shot groups at 100m (well under 1/2 MOA) at 2815fps (chronoed).

44.2gr of 2209 shoots second best and was chronoed at 2880 - would make a good hunting round.

I also tested 45.2gr of 2209, which wasn't as accurate, but was a very fast load at 2960fps.

These should all be good ball-park figures for the 123gr SSTs. I loaded .015" off the lands, so OAL was 2.850" (2.865" to the lands with the 123gr Scenar). Lapua small primer cases (Starline SRP cases have almost identical case capacity) with CCI BR4 primers.
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by in2anity » 10 Jan 2019, 1:58 pm

I thought we were talking about Grendel?
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Re: 7.62x39 vs 300AAC vs 6.5 Grendel

Post by JimTom » 10 Jan 2019, 4:24 pm

Yes mate we were, Flyer and I both have Creedmoors and the talk of a common projectile developed into a bit of a tangent in the conversation.
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