Echo Charlie
Well-Known Member
Would you please give me your opinion about this 6.5CM load?
Any comments are appreciated.
Lapua SR primer cases.
CCI BR4.
Vihtavuori N550 powder
147grain ELD match
24" barrel
COL: 2.880" (Maximum for magazine). Lands @ 2.913" (.033" Jump).
1st test done @ 100 meter.
Before this test fired 10 shots with N150/140ELD_M to harm and foul the barrel.
New cases (0 firing).
Oheler 35P didnt read velocity of the 38 grain charge
Photo of the case loaded with 41.5 grain.
Cratered primer and also visible a light round ejector hole mark around the last "A" of LAPUA lettering. This case measured a slightly larger OD near the base than the other ones.
Not noticed signs on the other cases and no bolt lift increased force.
Any comments are appreciated.
Lapua SR primer cases.
CCI BR4.
Vihtavuori N550 powder
147grain ELD match
24" barrel
COL: 2.880" (Maximum for magazine). Lands @ 2.913" (.033" Jump).
1st test done @ 100 meter.
Before this test fired 10 shots with N150/140ELD_M to harm and foul the barrel.
New cases (0 firing).
Oheler 35P didnt read velocity of the 38 grain charge
Photo of the case loaded with 41.5 grain.
Cratered primer and also visible a light round ejector hole mark around the last "A" of LAPUA lettering. This case measured a slightly larger OD near the base than the other ones.
Not noticed signs on the other cases and no bolt lift increased force.