Sako 243 copper 80grn
- Thread starter jb7x57
- Start date
1 in 10 twist by any chance?
Heym SR20
Well-Known Member
Give the barrel a really good clean. Some have found that monolithic bullets like really clean barrels - something to do with rifling not gripping the bullet when fouled.
Some say cleaning is a myth, but given they are not working and appear to be tumbling, you have little to loose by giving the barrel a deep clean getting rid of any fouling.
Try another brand of ammo. Monolithics are just like any other bullets. Some rifles like some bullets better than others.
A 1 in 10” standard 243 should comfortably stabilise an 80gn monolithic bullet. But some are longer than others. The Fox is a flat based short bullet and tends to work well in most rifles. Barnes and Yew Tree also seem to work well.
Some say cleaning is a myth, but given they are not working and appear to be tumbling, you have little to loose by giving the barrel a deep clean getting rid of any fouling.
Try another brand of ammo. Monolithics are just like any other bullets. Some rifles like some bullets better than others.
A 1 in 10” standard 243 should comfortably stabilise an 80gn monolithic bullet. But some are longer than others. The Fox is a flat based short bullet and tends to work well in most rifles. Barnes and Yew Tree also seem to work well.
Last edited:
Coleman21d
Well-Known Member
The only non lead bullet I have tried in my S&L .243 is Hornady Outfitter CX 80gr and it shoots better than 100gr lead. Standard 1in10 twist rate.
devon deer stalker
Well-Known Member
Check the twist rate on the custom rifle
I have a .243 Sako 75, I used 100grain lead and it grouped just fine, I dropped down to 80g Barnes TTSX and I was a little worried, I needn't of, even tighter groups.
I have a .243 Sako 75, I used 100grain lead and it grouped just fine, I dropped down to 80g Barnes TTSX and I was a little worried, I needn't of, even tighter groups.
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