Sierra Plus PRB Bonus, August 19, 20236mm Creedmoor Load dataThe 6mm Creedmoor cartridge now has an official SAAMI spec. Sierra Bullets has published the load data for the 6mm Creedmoor, a necked down version of the popular Creedmoor 6.5. Sierra Bullets has published very comprehensive 6mm Creedmoor loads, covering fifteen different bullets ranging from 55 to 110 grain. Sierra’s 6mm Creedmoor loads were tested using Hornady brass, not the stronger, newer Lapua 6.5 CM Brass with small primer pocket. Hand-loaders who use Lapua 6.5 Creedmoor Brass necked down to 6mm might have to adjust their load. Sierra writes: “As early as 2007, the 6.5 Creedmoor came out, a 6mm version began to be envisioned.” After the 6mm Creedmoor proved its worth at 1,000 yards, it began to attract the attention of Precision Rifle Series competitors. The 6mm Creedmoor cartridge is an excellent choice for AR platform users. It has velocities that are very similar to.243 Win, but fits in the AR10 magazine. The 30-degree shoulder helps make this case very efficient and prolongs the life of the case. For heavier bullet weights, the 6mm Creedmoor is best used with powders like H4350, RE-16, RE-17, Ramshot Hunter, and Ramshot Hunter. Powders that are a little faster, such as RE-15 and Win 760, work well with lighter bullets. “Sierra Bullets tested for 6mm Creedmoor Load data 55gr BlitzKing #1502
60gr HP (#1500).
70gr HPBT (#1505)
70gr BlitzKing (#1507)
75gr HP (#1510) and 80gr SBTs (#1515)
85gr Spitzer (#1520)
85gr HPBT (#1530)
90gr FMJBT #1535
95gr HPBT (#1537) 95gr TMK (#7295)
100gr Spitzer (#1540)
100gr SBT #1560
107gr HPBT (#1570)
Sierra tested two dozen propellants in total to develop its 6mm Creedmoor loads. Fast-burning powders like Benchmark, CFE223 and H4895 were tested for the smaller bullets. Sierra tested a variety of powders with medium burn rates for the heavier bullets over 100 grains, including H4350 and Reloder 16, Reloder 17 and Varget. Sierra did an excellent job. Don’t know which powder to start with? If you are looking for the best accuracy with low ES/SD and a 107-110 grain bullet, our Forum members suggest Alliant Reloder 16 or Hodgdon h4350. Sierra’s 6mm Creedmoor Load Data charts for 90-95 grain and the 107gr and 110gr bullets. There are also five tables for bullet types.BONUS – PRB 6mm Creedmoor & 6.5 Creedmoor Load surveyThe Precision Rifle blog compiled Load data from PRS competitors for both 6mm Creedmoor & 6.5 Creedmoor. This is a great place to start. PRB surveyed match loads for 173 of the best precision rifle shooters across the country. One cautionary note: The PRS guys might be loading pretty hot. Work up gradually, 0.3 grain at a time. CLICK HERE.
Similar Posts:Tags: 6.5 Creedmoor, 6mm CM, 6mm Creedmoor, Hodgdon Powder, Sierra Bullets
