I have tried it in the following:
7mm Mauser
175gn Partition over 50gn for 2562fps. 49gn was more accurate at MOA but R26 was slower than R 17 which generated 2640fps and very tight groups. I feel this powder is a little slow to generate best velocities in this case.
280 Ackley Imp
150gn Nosler BT - I worked up to 64gn with this bullet for 3027fps and MOA groups but R22 and R17 beat it slightly by about 30-5-fps and generate better accuracy both under MOA from this 22" barrel.
154gn Hornady SP - 63gn generated 2886fps.
160gn Accubond - 63gn generated 2891 and .75MOA accuracy using Fed 210 and 2876fps and just n=under .5MOA using the same load and CCI 200 primer.
160gn Partition - 63gn for 2937fps though 62gn was more accurate at 2846fps.
175gn Accubond - 62gn generated 2892fps which I feel is perhaps a warm load though no excess pressure indicators were present.
175gn Partition - shot very tight .6MOA groups using 62gn but I encountered a slightly sticky bolt though not on all cases, so it is likely a grain or more too high though the cases were still tight in the primer pockets when being examined and re-annealed for the 2nd time for their 6th reloading.
7mm Remington Magnum
160gn Partition - 69gn shot some very fine accuracy at 3048fps
175gn Partition - My accuracy load was 68gn for 2990fps at best accuracy of .309". I did try up to 69gn and 3071fps by accuracy opened up to just over MOA.
.30/06
200gn Accubond - 62gn developed 2633fps which is no better than the 4350's so I need to try a little more here.
200gn Barnes TTSX - This bullet is sold as the LRX now, but Barnes provided samples to me under the TTSX label. 62gn of Rel 26 generated very tight .4" range grouping at 2724fps so I stopped here at this load will take anything a 30 caliber rifle could possibly be used on.
200gn Partition - This bullet digested 63gn for 2696fps in my Featherweight with 22" barrel and good accuracy. I did record that the increase in velocity was marginal over the 62gn loads.
220gn Partition - 60gn generated 2486fps and I will try an extra grain as the load was mild in my rifle.
.338 Winchester Magnum
225gn Partition - 77gn generated 2742fps so appears a little slow for this case size.
225gn Accubond - The same 77gn generated 2777fps.
250gn Partition - 76gn generated 2637fps.
250gn Accubond - 76gn generated 2656fps.
265gn Barnes TTSX - 72gn generated the tightest groups in the .3" range and 2496fps and I worked up to 74gn for 2536fps so there isn't a lot of gain for grain. groups went from .274" to .650" but it should be noted that bullet seating was well out at 3.375" as I was using a Mark V rifle with 24" barrel.
285gn Barnes TSX - 71gn generated 2478fps and is around .8MOA for accuracy in my rifle.
NOTE: An important point to relay at this stage, is that the last 5 loads (excepting the 225gn Partition) all shoot into a composite 1.1" group so were interchangeable. That makes this Weatherby Mark V rifle extremely desirable as a hunting rifle for an awful lot of big game species. The seating die was the same setting for 265 and 285gn bullets where the 285gn settled a little deeper for an OAL of 3.322".
Now, where can anyone find this stuff?
John
