I have had some for years.. decades probably. I just tried it for the first time 37 gr behind moly coated 145 gr BTSP gave about 2500 fps in a 29" military 7x57, and 2300 in a 23". Not hot loads but very accurate. Just wondering what else it is used for. Would like data for 303, 30'06, and enything else you use it in. Thanks.
Does anyone use win 845
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WC845, aka SMP 845.
The data sheets I have for it, say that it is 1/2 grain faster than H335. Use H335 start loads as MAXIMUM & reduce by 15% if no start load is shown. It also says Best for .223.
It is reported to be a slower lot of 844 / faster lot of 846, which, once upon a time, were just 1 powder, which was then renamed into 2 lots, the faster 844 for 5.56 (.223), while the slower lot 846 was designated for 7.62 NATO (.308 WCF)
On the included burn rate chart, it is right next to AA2460 & before H335.
A quick cross-check with Quickload reflected a Speer 145 gr. BTSP moly-coated bullet, in a 29" barrel, yielded 2,487 fps using 37.0 grs. of AA2460, and 2,350 fps in a 23" bbl. Both reflected a breech pressure of 34,026psi.
The only fly in the ointment is that, at least for the Czech AA2460, it occupies only 67.9% of net case volume, assuming a gross water capacity of 59.5 grs. of H2O & a C.O.A.L. of 3.071".
The data sheets I have for it, say that it is 1/2 grain faster than H335. Use H335 start loads as MAXIMUM & reduce by 15% if no start load is shown. It also says Best for .223.
It is reported to be a slower lot of 844 / faster lot of 846, which, once upon a time, were just 1 powder, which was then renamed into 2 lots, the faster 844 for 5.56 (.223), while the slower lot 846 was designated for 7.62 NATO (.308 WCF)
On the included burn rate chart, it is right next to AA2460 & before H335.
A quick cross-check with Quickload reflected a Speer 145 gr. BTSP moly-coated bullet, in a 29" barrel, yielded 2,487 fps using 37.0 grs. of AA2460, and 2,350 fps in a 23" bbl. Both reflected a breech pressure of 34,026psi.
The only fly in the ointment is that, at least for the Czech AA2460, it occupies only 67.9% of net case volume, assuming a gross water capacity of 59.5 grs. of H2O & a C.O.A.L. of 3.071".
