I’m hoping someone can help me wrap my head around something that is driving me crazy with my .308 gas gun setup.
For reference, guns are run-of-the-mill POF Revolution 308, 16.5” 1/10 (fairly new) and a Gen1 GAP10 which has a few thousand rounds through it). I shoot only factory loads out of both.
So, I have scoured *countless* threads (mostly here, along with a select few other resources) that have stated, in no uncertain terms, that bullet weight/type/brand/color/smell/taste absolutely does not matter, and makes zero difference at shorter (sub-300yd.) distances. Period. Some have even gone so far as to suggest that, at 100 yards, groups from a premiere load (something along the lines of Copper Creek’s 190 VLD’s in Lapua brass) would be indistinguishable from the likes of the dirtbag stuff...Wolf or TulAmmo 150 FMJ’s. My experience has been just the opposite.
Both my POF and GAP are incredibly accurate (3/4 MOA) with Hornady 178 ELD-X and FGMM 175 SMK. Even being run by a scrub like myself, these rifles are so squared away that the dreaded transition from a bolt gun to semi was almost effortless.
All that changes, however, with a lighter bullet. Switching from FGMM 175 to 168 opens the formerly sub-moa groups up to 2”+ at 100 yards, and the results were consistent across three different shooters. When running even lighter loads (150gr.) you might as well just shoot from the hip, Rambo-style. Are these results typical for anybody else that runs these guns? I know that a 1/10 twist (typically) likes heavier bullets, but should I be seeing such a significant difference in accuracy at 100 yards?
I realize that was probably long-winded, but for those who suffered through it, thanks in advance for your insight, and for your patience.
For reference, guns are run-of-the-mill POF Revolution 308, 16.5” 1/10 (fairly new) and a Gen1 GAP10 which has a few thousand rounds through it). I shoot only factory loads out of both.
So, I have scoured *countless* threads (mostly here, along with a select few other resources) that have stated, in no uncertain terms, that bullet weight/type/brand/color/smell/taste absolutely does not matter, and makes zero difference at shorter (sub-300yd.) distances. Period. Some have even gone so far as to suggest that, at 100 yards, groups from a premiere load (something along the lines of Copper Creek’s 190 VLD’s in Lapua brass) would be indistinguishable from the likes of the dirtbag stuff...Wolf or TulAmmo 150 FMJ’s. My experience has been just the opposite.
Both my POF and GAP are incredibly accurate (3/4 MOA) with Hornady 178 ELD-X and FGMM 175 SMK. Even being run by a scrub like myself, these rifles are so squared away that the dreaded transition from a bolt gun to semi was almost effortless.
All that changes, however, with a lighter bullet. Switching from FGMM 175 to 168 opens the formerly sub-moa groups up to 2”+ at 100 yards, and the results were consistent across three different shooters. When running even lighter loads (150gr.) you might as well just shoot from the hip, Rambo-style. Are these results typical for anybody else that runs these guns? I know that a 1/10 twist (typically) likes heavier bullets, but should I be seeing such a significant difference in accuracy at 100 yards?
I realize that was probably long-winded, but for those who suffered through it, thanks in advance for your insight, and for your patience.
