Reloading

308 Winchester load development: Sierra 168 gr. MatchKing with IMR 4064 and VARGET

December 6, 2016 Bill Marr 0

In the days before the 175 gr. Sierra MatchKing (SMK), the 168 SMK ruled supreme in the 308 Winchester. Back then it was sometimes referred to as a “heavy match” bullet since it was a […]

223 Ackley Improved (223AI) loads and review: A better 223?

November 28, 2016 Bill Marr 0

223 Ackley Improved: A better 223? Whether it’s simple curiosity or a desire to increase performance, exploring different cartridges is part of being a shooter. One way to accomplish this is to purchase a new firearm. […]

308 Winchester load development: Sierra .308 195 gr. Tipped MatchKing (TMK) and VARGET

November 21, 2016 Bill Marr 0

Sierra .308 195 gr. Tipped MatchKing (TMK) load development: 308 Winchester and VARGET In Sierra .308 195 gr. Tipped MatchKing (TMK) REVIEW and load development: 308 Winchester and IMR 4064, we had a first look at […]

308 Winchester load development: Sierra .308 195 gr. Tipped MatchKing (TMK) REVIEW with IMR 4064

November 14, 2016 Bill Marr 0

Sierra 195 gr. Tipped MatchKing (TMK) REVIEW and load development: 308 Winchester and IMR 4064 Sierra recently expanded the Tipped MatchKing (TMK) line with the introduction of a 195 grain .308 diameter bullet #7795. […]

Annealing brass for reloaders

June 6, 2016 Bill Marr 0

Most shooters are aware that brass work hardens as it is fired in a rifle and sized in a die. The work hardening process makes the brass harder and less ductile. If you have ever […]

300 BLK load development: 125, 135, 175 and 220 SMK with H110 and IMR 4227

June 1, 2016 Bill Marr 0

The 300 AAC Blackout (300 BLK) is a popular alternative cartridge in the AR-15/M16 M4 (AR) community. Known for its ability to deliver heavy subsonic bullets for standard AR magazines while cycling the action in suppressed applications, […]

6.5 Creedmoor load development: Sierra 130 grain Tipped MatchKing (TMK) with H4350, Varget, Reloder 15 and Reloader 17

May 23, 2016 Bill Marr 0

Sierra’s 6.5 mm (.264″) 123 and 142 grain MatchKings (SMK) are staples of the precision shooting world. Both offer exceptional precision to the marksman, but a middle weight 6.5mm option eluded those of us who […]

Ammunition concentricity and accuracy: Testing the effect of run-out on precision

February 8, 2016 Bill Marr 0

What is cartridge concentricity? Cartridge concentricity is how straight a cartridge is along it’s center axis. The straighter the round, the lower the concentricity. Ammunition concentricity is measured using a method called Total Indicator Runout (T.I.R.)- sometimes […]

308 Winchester 175 Sierra MatchKing and IMR 4064 load development

January 11, 2016 Bill Marr 0

308 Winchester load development with the Sierra 175 grain MatchKing (SMK) and IMR 4064 Powder. In this post, I’ll be developing a load for my M40A3 clone. Built on a customized Remington 700 receiver, the […]