In recent testing I found that N540 is very accurate in combination with the 105gr. Lapua Scenars,Moly). Accuracy is equal to the best load I have with Norma's 203B in my gun which has a Border cut rifling 1 in 8 barrel.
The load is as follows :
Case : Lapua
Primer : CCI BR4
Bullet : Lapua 105 grs Scenar Moly
COAL : 2.366' - jumped 0.005'
Load : 31.8grs N540
I would like to try this load in 300 meter prone competition but several of my fellow shooters claim this powder will ruin my barrel very quickly, some say even after a match or two.
300 meter prone competition is very demanding on barrels as one fires 65 to 75 shots in less than 75 minutes, sighters included. The barrel tends to get very hot,too hot to touch) during summer matches.
Normal useful barrel life in my gun,with N140 and Norma 203B)has been between 2200,Shilen) and 3400,Border) shots.
My question is could I use N540 for my matches or should I stay away from it?
I think German Salazar has used this powder in his high power competition but I am not sure.
Eddy
The load is as follows :
Case : Lapua
Primer : CCI BR4
Bullet : Lapua 105 grs Scenar Moly
COAL : 2.366' - jumped 0.005'
Load : 31.8grs N540
I would like to try this load in 300 meter prone competition but several of my fellow shooters claim this powder will ruin my barrel very quickly, some say even after a match or two.
300 meter prone competition is very demanding on barrels as one fires 65 to 75 shots in less than 75 minutes, sighters included. The barrel tends to get very hot,too hot to touch) during summer matches.
Normal useful barrel life in my gun,with N140 and Norma 203B)has been between 2200,Shilen) and 3400,Border) shots.
My question is could I use N540 for my matches or should I stay away from it?
I think German Salazar has used this powder in his high power competition but I am not sure.
Eddy