neutron619 Posted March 9, 2017 Report Share Posted March 9, 2017 (edited) Hello Chaps, Simple question. I have tubs of Vectan A1 and A0 and access to more. I've just bought a cheap Baikal SxS from wabbitbosher which I'll pick up next week. I shoot 28g/#6 in my 16 gauge gun and 39g/#5 in my other 12 gauge (semi). I'm not sure I want to be blasting away with "mini magnums" in a SxS, so I thought I'd work up another cartridge somewhere in the middle of those two. Maybe 33-34g/#5. The question is, A1 or A0? 34g seems to be in the overlap between the two powders. Is it enough weight of shot to make A0 play nicely? Is it going to leave me shooting a subsonic cartridge with A1? Not that that's a problem, particularly, but I usually like 1200-1250fps... Does anyone have data for such a load? There's one listed on FES, but I always like having a handful of recipes to make sure there's an average. (I once inadvertently worked up a rather hot load for .308 from a single source - rookie mistake - so let's just say I now like to see similar data from 3-4 sources before I put anything together.) Anyway - thoughts please gentlemen? Many thanks, Adam. Edited March 9, 2017 by neutron619 Quote Link to comment Share on other sites More sharing options...
propercartridges Posted March 9, 2017 Report Share Posted March 9, 2017 try 1.6 gram of a1 for a nice 35 gram load or teckna for 36 through to 52 gram in plastic 12 gauge cheers george Quote Link to comment Share on other sites More sharing options...
rbrowning2 Posted March 9, 2017 Report Share Posted March 9, 2017 (edited) Where powders overlap I would always go for the slower version. A1 is a 32gm powder in 12ga so I would go for A0 for above 32gm or PSB2 as A0 is I am finding hard to get now other than in 500gm tubs which is expensive. George What's the pressure at wth 1.6gms of A1 Edited March 9, 2017 by rbrowning2 Quote Link to comment Share on other sites More sharing options...
neutron619 Posted March 9, 2017 Author Report Share Posted March 9, 2017 George What's the pressure at wth 1.6gms of A1 Thanks both - I'm interested to know the answer to that question too if you can reveal the numbers? Quote Link to comment Share on other sites More sharing options...
Guest cookoff013 Posted March 10, 2017 Report Share Posted March 10, 2017 personally i`d go with the faster powder. i run A1 in some real funny applications and i can say it has a huge range that it works in. i got 36g loads shifting fast in a 3" load, but i also got in a 3" format 42g subsonic. i would say with my experience, it is well comfortable and optimal at 36g / 1200fps. when i ran a density assay, the shot weight that really suprised me is 30g and it out performed alot of the loads that i tested. and i tested 25g steel to 42g tungsten. sadly the tungsten load failed by statistics, if i had shot off more it may have passed, the average was ok. sadly this is all in 3" format. i started proofing alot of 3" lately... 2.75" is a fantastic format, but the 3" gets alot more beans in the hull. Quote Link to comment Share on other sites More sharing options...
rbrowning2 Posted March 10, 2017 Report Share Posted March 10, 2017 But 3" would be at 1050bar Certainly Nobel sport the powder manufacture show A1 at 32gm http://www.nobelsport.it/public/pages/ENG/schedapol.asp?ProdottoID=558&FamigliaID=0 They also so an A1SP which looks to be the kiddy for 36gm So back to George if he would share the velocity and pressure data for the load he suggests with us as he has one big advantage over us having the ballistic equipment. Quote Link to comment Share on other sites More sharing options...
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