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Post by tisme on Jul 3, 2015 7:53:32 GMT
Can't go on forever load testing! Nope if I do much more I'll need it re barrelled.
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Post by sako75varminter on Jul 3, 2015 21:11:20 GMT
Spud has some 140 A-max..if that's any good?
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Post by swampdonkey on Jul 3, 2015 21:58:32 GMT
Just use .243 ammo, saves on barrel wear
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Post by davet on Jul 5, 2015 20:43:19 GMT
I have called all my suppliers, and no one has any 140 Berger anythings in stock. I have put some on back order, but they are not due until September apparently. My recommendation would be if you see them, buy them all, because we are not guaranteed to get any in the next shipment from Berger either. Rich
I heard of some European suppliers that seem to do business into UK reliably but cannot remember the web address....anyone got any info?
We can't use Scenars at the RRC and now Bergers are off the menu.......I might just stick to SMKs assuming they can be had!
I am sooo tired of load dev!
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Post by c18rch on Jul 6, 2015 6:48:36 GMT
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Post by tisme on Jul 11, 2015 17:15:34 GMT
Just in case anyone else can't find 140 Bergers I've just tested 142 MK at the same load as I do Bergers and they were 12.fps faster average and all the bullets (10) went though the same hole 5 Bergers made. Very please I don't need to do loads of testing.
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Post by davet on Jul 12, 2015 12:45:12 GMT
Good news....I don't even have enough Bergers to get drop tables ...will have to rely on Applied Ballistics predictions!
What powder/load are you using for the SMKs and what MV are you seeing?
With 46g of N560 out of a 29" barrel I am getting 2957fps with 140g Bergers....pretty swifty but no pressure signs.
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Post by oaken on Jul 12, 2015 16:57:19 GMT
I scrounged 18 140 Bergers off Pete a couple of weeks ago. Now with anything over 43gr N160 I get pressure signs, as in ejector stamps, with 123gr SMK yet can go to 46gr with 140 Bergers!!!! What's going on ?!? Didn't get a chance to chrono but very optimistic :-D
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Post by tisme on Jul 12, 2015 17:31:06 GMT
Good news....I don't even have enough Bergers to get drop tables ...will have to rely on Applied Ballistics predictions! What powder/load are you using for the SMKs and what MV are you seeing? With 46g of N560 out of a 29" barrel I am getting 2957fps with 140g Bergers....pretty swifty but no pressure signs. I'm not trying to get them that hot as I'm trying to make a barrel last 2000 rounds. So my load is 42.2 gr H4350 and getting 2826 fps all ready shot out to 1500 yards so happy with this speed. cleaned and sized 350 cases today ready to load for the RRC, don't want to run out.
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Post by tisme on Jul 12, 2015 17:32:48 GMT
I scrounged 18 140 Bergers off Pete a couple of weeks ago. Now with anything over 43gr N160 I get pressure signs, as in ejector stamps, with 123gr SMK yet can go to 46gr with 140 Bergers!!!! What's going on ?!? Didn't get a chance to chrono but very optimistic :-D Are you getting pressure signs due to OAL?
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Post by oaken on Jul 12, 2015 18:47:59 GMT
Running around 12thou off, so shouldn't be that.
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Post by swampdonkey on Jul 12, 2015 18:56:42 GMT
Shorter bearing surface on the bergers 0.398"as opposed to 0.407" on the smk.
Might not sound like much, but like they say at tesco
Every little helps
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Post by oaken on Jul 12, 2015 19:08:43 GMT
That could be it! Got same with the Scenars, what is their bearing surface length? You getting any pressures with the aMax, they are long stemmed bullets? I've not tried them yet.
You've been reading those Litz books I reckon.
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Post by swampdonkey on Jul 12, 2015 19:24:17 GMT
123gr scenar. 0.357" 123gr amax too new to be in book. As for pressure signs, nope, not at 45.7gr of n165. If anyone has QL and fancies running that through, 27" barrel, fed 215m primers in lap brass ?
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Post by davet on Jul 12, 2015 19:37:32 GMT
Good news....I don't even have enough Bergers to get drop tables ...will have to rely on Applied Ballistics predictions! What powder/load are you using for the SMKs and what MV are you seeing? With 46g of N560 out of a 29" barrel I am getting 2957fps with 140g Bergers....pretty swifty but no pressure signs. I'm not trying to get them that hot as I'm trying to make a barrel last 2000 rounds. So my load is 42.2 gr H4350 and getting 2826 fps all ready shot out to 1500 yards so happy with this speed. cleaned and sized 350 cases today ready to load for the RRC, don't want to run out. Well my next accuracy node down from 46g of N560 was 44.5g which by coincidence was also my accuracy load for 139g Scenars and it still gave me 2893FPS with the Bergers.
I may drop to this if I see it making the extreme ranges ...and if I can ever get a reliable bullet supply!
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