Thread: 6.5x55AI

Toby have you tried 2209 yet. It might not be worth going to 560 for you if price or availablity is an issue.

In my old Mauser 6.5x57 AI 51.5 grains of 2209 with a 129 SST gives 3030.

From memory I settled on 50.5gr N560 behind the 140 AMAX @ 3050 out of a 24" barrel. I pushed it as high as 3170, (around 52gr) before getting really obvious pressure, but brought it back for sanity reasons...

Pretty sure that Crazy was running 49gr N560 in a standard 6.5x55 sako for 2900 at one stage... was a pretty stout load for that..

Didn't do much with RL17..

I reckon you will love getting over 3000fps with 130g using a .270 Toby. Now there's a man's calibre . . . . . . lol. 3200fps with sst. Good varmint round but stay away from the deer and pigs . . . . . hahahahahaha

So it was pissing down raining today so we thought it was as good as any other day for a hunt.

Anyway funny thing happened. I got pressure signs on my brass that I shot an even managed one where the primer fell out. Hardcase alright, it was a lot colder then when I tested those loads and had backed off from when it got hot when testing so didnt think they'll do what they did but there you go.

On your lapua brass? What speed etc you end up with and load?

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Nah I haven't managed to get out an test those loads I done in the lapua brass. These were just some loads I had left over. Thought I might as well use them while I can. I have a feeling the one where the primer fell out was one of the old brass with loose pockets and it slipped into my good brass pile

Out of the few I fired these ones where the ones that showed signs, the others were fine.

Of the bottom picture, the two cases on the left side look like they've has a thrashing in the past going by the imprinted bolt face marks on them.
The current load looks mild as the primers aren't even beginning to square off on the edges of the pockets

That should have been their 4-5th firing now but I think some of my rooted cases from when I went too high in the testing got mixed into my good pile

Originally Posted by Toby

Out of the few I fired these ones where the ones that showed signs, the others were fine.

https://fbcdn-sphotos-b-a.akamaihd.n...97977596_n.jpg

https://scontent-a-pao.xx.fbcdn.net/...62&oe=54776FA8

Compressed load?

Nah man, still got heaps of room left

wow talk about extractor marks, have seen worse with actual nuggets imprinted from the extractor hole!

have you measured case head expansion>?

Nope. How do I go about doing that?

Anyone know why the loads were shooting hotter then they should have been going off the day they were tested? I thought it was a hot day that made them go hotter not a cold day

Heavy fouled barrel?
Hot barrel and a chamber, round sitting in hot chamber to long before shot.

Tho you said you had got them mixed up could be they where rooted anyway from previous loads. Bin then all start on your new lapua brass and mark the head when fired each time on resize with small file. Then you know how many times they been around.

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