I know every barrel is different, but...


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1911 guy
December 10, 2013, 03:54 AM
This one has got me stumped. So I built a varmint gun. 20" heavy barrel AR with a 1:9 twist. My bolt gun is also a 1:9 and just loves the 60gr. Hornady V-Max over a dose of Hogdon Varget.

So I go to the range with a couple things. First, a spread of handloads to find the "sweet spot" for this rifle. Loads from start to near max charge, magazine length to single load lengths. And... some 45gr. ammo for a bolt gun I used to have with a 1:12 twist. Gonna shoot that up and "reclaim" the brass.

Except it shoots better than any of the 60gr loads.

I know every barrel is a law unto itself, but I admit to being a little confused. Other 1:9 twists I've tried the 45gr load in have slung it down range like a buckshot pattern.

The barrel is a Shaw, freefloated. Any ideas what might be going on here? The thought occurred to me to check the twist, make sure I got what I ordered. Maybe should have done that before I installed it.

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ArchAngelCD
December 10, 2013, 03:59 AM
I see no reason why a 1:9 twist barrel wouldn't be accurate with a 45gr bullet, especially from a quality maker like Shaw.

My 1:9 barrel shoots 50gr Sierra bullets like they were made specifically for that rifle. Don't get me wrong, other bullets shoot well too but the 50gr Sierra bullets shoot VERY well.

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