I am reloading .308 and getting some pretty wide ranging results in accuracy. My SD is around 5 across several strings so I think I have that dialed in possibly, however, I will get .3 inch groups and then with the same load, get a 2 1/2 inch group... I have a fully customized (by LRI) Remington 700 in an AICS AX chassis with a Minox ZP5 in a Spuhr mount. Shooting suppressed with a SilencerCo Omega. It's a Remage setup using a 26" Criterion barrel (Varmint Profile) with around 500 rounds through it. I've verified the torque several times on the action screws (53 in/lbs.) per AICS spec. Also verifed that the Sphur mount is tight and not loose on the rail.
It's making no sense so I thought I was ask here.
I am using Lapua Brass, Berger 175 OTM's, 4064 Powder and FGGM (210M) primers.
Process below:
1) De-prime brass with RCBS decapping die (not sizing) in a Dillon 650. (Do I need to use an Expander Mandrel or just stick with what I am doing in step 4? It didn't make sense to expand the neck just to size it in step 4 with a bushing)
2) Clean brass in Frankford Arsenal with Stainless Steel media using dish soap, hot water, and a tablesppon of Lemi-Fresh
3) Anneal Brass with an Annealeez setup
4) Spray the brass with Dillon case lube and Full length resize brass with a RCBS competition bushing die in a Dillon 650. I use a carbide .336 bushing. The shoulder is taken to a few thousandths below the headspace in the rifle (measured with a gauge and calipers). I also seat the primers in this step as well while they are in the 650. (Should I be cleaning the lube off the brass at any point? Does it make any difference in the load quality?)
5) Trim brass to 2.005" and use a little hand held RCBS deburr tool to chamfer the inside and outside of the brass mouth.
6) Hand dispense 42.8 grains of powder that is checked in a RCBS 10/10 beam scale.
7) Seat the bullet, using a Forster Co-Ax press and a Forster Co-Ax Competition Micrometer die to approximately 5 thousandths off the lands. I use a comparator with a pair of Mitutoyo calipers to verify length to OGive.
Just trying to eliminate the human error from the equation. Thanks in advance for any help or advice!
It's making no sense so I thought I was ask here.
I am using Lapua Brass, Berger 175 OTM's, 4064 Powder and FGGM (210M) primers.
Process below:
1) De-prime brass with RCBS decapping die (not sizing) in a Dillon 650. (Do I need to use an Expander Mandrel or just stick with what I am doing in step 4? It didn't make sense to expand the neck just to size it in step 4 with a bushing)
2) Clean brass in Frankford Arsenal with Stainless Steel media using dish soap, hot water, and a tablesppon of Lemi-Fresh
3) Anneal Brass with an Annealeez setup
4) Spray the brass with Dillon case lube and Full length resize brass with a RCBS competition bushing die in a Dillon 650. I use a carbide .336 bushing. The shoulder is taken to a few thousandths below the headspace in the rifle (measured with a gauge and calipers). I also seat the primers in this step as well while they are in the 650. (Should I be cleaning the lube off the brass at any point? Does it make any difference in the load quality?)
5) Trim brass to 2.005" and use a little hand held RCBS deburr tool to chamfer the inside and outside of the brass mouth.
6) Hand dispense 42.8 grains of powder that is checked in a RCBS 10/10 beam scale.
7) Seat the bullet, using a Forster Co-Ax press and a Forster Co-Ax Competition Micrometer die to approximately 5 thousandths off the lands. I use a comparator with a pair of Mitutoyo calipers to verify length to OGive.
Just trying to eliminate the human error from the equation. Thanks in advance for any help or advice!
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