MissouriCrowinMass
New member
What a beautiful day to do some shooting. I took my 1939, 91/30 to my club's range with a box of Silver Bear, a box of Brown Bear and a package in Plain Brown Paper (The headstamp was 60 over 80 - red seal on primer & casemouth - no idea what it is other than the cheapest 7.62x54R ammo.)
The Range is 50 yards. Standard Russian 9" Pie Plate. Iron sights at closest setting. POA - bottom of pie plate. 57 year old eyes. Discarding all outlier shots!
Results
1. Plain Brown Paper - 4"x2" Group is about 6" High & 2" Left.
2. Brown Bear - 5"x2.5" Group is about 6-1/2" High and 1" Right.
3. Silver Bear - 3"x2" Group is about 3" High and centered. Best round at 50 yards.
It amazes me how different these ammunitions shoot? I've shot the Plain Brown Paper Rounds twice now and they shoot WAY left for my rifle. All rounds shoot high due to the sights but a difference of 6" vs. 3" high can't be muzzle velocity, right? Not at 50 yards? What exactly causes these deviations? Is it the vibration of the barrel at a certain point when the bullet leaves the muzzle?
Good lesson today. With Silver Bear and shooting about 3" high at 50 yards.....I'm going to put a hurting on some beer cans. Plus, I used a tip on the clips. I put some oil on them and lifted up on the tip of the top one while pushing down on the hind end of the cartridge. Not smooth but not bad. Better than loading 1 at a time.
I wish my Mosin shot just a little better. The action & bolt are as smooth as Greased Owl Dung. The bore has very good rifling just pretty dark. The bore isn't very smooth...it chews up patches a leaves those little barrel boogers after a cleaning.
Anybody think that a good session with Bore Paste might smooth the bore & shrink the groups?
John
The Range is 50 yards. Standard Russian 9" Pie Plate. Iron sights at closest setting. POA - bottom of pie plate. 57 year old eyes. Discarding all outlier shots!
Results
1. Plain Brown Paper - 4"x2" Group is about 6" High & 2" Left.
2. Brown Bear - 5"x2.5" Group is about 6-1/2" High and 1" Right.
3. Silver Bear - 3"x2" Group is about 3" High and centered. Best round at 50 yards.
It amazes me how different these ammunitions shoot? I've shot the Plain Brown Paper Rounds twice now and they shoot WAY left for my rifle. All rounds shoot high due to the sights but a difference of 6" vs. 3" high can't be muzzle velocity, right? Not at 50 yards? What exactly causes these deviations? Is it the vibration of the barrel at a certain point when the bullet leaves the muzzle?
Good lesson today. With Silver Bear and shooting about 3" high at 50 yards.....I'm going to put a hurting on some beer cans. Plus, I used a tip on the clips. I put some oil on them and lifted up on the tip of the top one while pushing down on the hind end of the cartridge. Not smooth but not bad. Better than loading 1 at a time.
I wish my Mosin shot just a little better. The action & bolt are as smooth as Greased Owl Dung. The bore has very good rifling just pretty dark. The bore isn't very smooth...it chews up patches a leaves those little barrel boogers after a cleaning.
Anybody think that a good session with Bore Paste might smooth the bore & shrink the groups?
John