I liked this powder, I orded 12lbsThis. TAC is a good one.
I often wondered what Big Game would do with the 105 type bullets in the 6BR Norma. I t falls pretty close to N140 on the burn chart.I liked this powder, I orded 12lbs
Source: http://www.targetshooter.co.uk/?paged=13&cat=58
TAC, whose burning rate matches that of the much-missed Alliant Re12 of days gone by. It falls between Hodgdon BL-C(2) and H4895, likewise Viht N133 and N135. This is a flexible number with a large range of uses in small to mid size cartridges and Henry Krank’s Ken Grey tells me it’s the company’s biggest seller. It’ll work in 223 Rem with the lighter bullets but really comes into its own with projectiles weighing 69gn or more where it gives better velocities than X-Terminator, although not that much more. TAC promises good results from 308 Win with a good size bullet-weight range, data provided for bullets up to 200gn. I had excellent results from TAC in a heavy-barrel 308W Ruger 77V with 155gn Sierra Palma MatchKings in my earlier try-out, so was keen to try it in my Howa 1500 ‘affordable F/TR rifle’ with its short 22-inch barrel. Running TAC + 155s through QuickLOAD suggested I should exceed 2,800 fps despite the barrel length. It’s still fast-burning enough to have uses in some big-bore straight-case rounds too.
TAC and Wild Boar produce very high MVs in .308. Wild Boar suits .223 with 75-80gn bullets.
As usual, if you provide the data needed for GRTools, I can run you a sim:I often wondered what Big Game would do with the 105 type bullets in the 6BR Norma. I t falls pretty close to N140 on the burn chart.
TAC and Wild Boar produce very high MVs in .308. Wild Boar suits .223 with 75-80gn bullets.
Why do you think Temp stability would be a issue with IMR 4064 ? I shoot it year round in Arizona , and only drop my Summer load about three to four tenths from my winter load . Thats a temperature spread from mid 30's to over 110 - 115 .Shooters world precision rifle, which Laurie references in his Reach articles, has been showing promise for me in replacement of Varget, and seems to have decent availability. IMR 4064 is tough to beat as a versatile powder unless you absolutely must have temp stability.
I like IMR-4064 quite a bit and use it regularly. If I was competing at long ranges in variable temps, I would prefer to have slightly better temperature stability, particularly if I was pushing maximum velocities/pressures. The Hodgdon extreme powders are pretty well documented to be some of the best performers in that category.Why do you think Temp stability would be an issue with IMR 4064 ? I shoot it year round in Arizona , and only drop my Summer load about three to four tenths from my winter load . Thats a temperature spread from mid 30's to over 110 - 115 .