sabotloader

Let me start this by once again saying - that mathematically the 40x215 CF should not shoot from a slow twist rifle.

I was able to get to the farm this morning and the mission was to shoot the new Lehigh 40x215 CF bullet. If you read the previous post you know that I mentioned that I had shoot a couple of 215 yesterday while shooting the new 40x185's. Those two shots indicated that there might be some hope for shooting this new bullet from a slower twist rifle.

This morning was a little warmer than yesterday day but I really wanted to do this activity. So headed out to farm to get setup. At the farm I placed the target near the same spot as I had yesterday - I forgot the range finder so I could not get the exact distance. When I paced back to the shooting bench it was 123 paces - so I believe I am very close to 100 yards.

Also a thought to consider, I was shooting a 110 grains of T7 for this shoot. I normally shoot 120 grains while hunting but since these bullets should not shoot from the 1-30 I did drop the charge hoping to induce the tumble if it were going to happen. Another factor that might play into this is that I am shooting at about 2600 ft. of elevation in high 70* temperature.

I ended up shooting to groups and a OOP's. The OOP's was my own doing trying to move the front Caldwell rest to the right with my left hand while the right hand trigger finger was on the trippger - OOP's.

The first group was shot with my normal MMP Tan sabot the second group of 3 was shot using a Harvester Light Blue Sabots.

Here is the target... Even with this target - Nothing has really been proved about shooting this bullet shooting from a slow twist 45 cal. rifle.



I really did want to set the target out to longer range but walking through the Garbanzo Field sounded like I was killing 100's of big beetles and I was even trying to be careful. At some point I will get those long range shots...

And a couple more pics to show some of the shooting expedition

super_hunt54

uhhuh that "oops" says "RULE NUMBER ONE, KEEP YA BOOGER HOOKER OFF THE BANG SWITCH TILL YER READY TO ROCK!" Other than that, it looks like they made another winner with the 215. If it shoots that well out of a 1:30 then it should do amazingly well out of a 1:20!

sabotloader

Ya I know.. but dang sometimes crap happens - made me terribly mad...

Oh! I am quite sure they will do just fine from a 1-20.

Like you Tom was somewhat concerned about the holes in the target. Part of that might be that I am not using any type of target backing - just to paper stapled to a bang board that has been shot many times.

Grouse suggested a 25 yard test not for a group but just to shoot holes to see if maybe the bullet is Yawing a bit. Then shooting a 175-200 yard target would also confirm that. I am thinking I hate Garbanzo Beans - but again at least that field is green.

mike

Gm54-120

The calculators say even the 185gr is on the edge of stability in a 1-30. I shot one of my best 200 yard groups with a Lehigh 185gr DOA in a 1-30 or 1-28 45cal. It wasnt even a max load of BH209. Muzzle velocity was very likely less than 2300fps.

super_hunt54

Yeah I line hang mine between to wires with no backing either so they sometimes tear weird even with the bullets going through properly. Especially flat points. Really shows up when I scan them in instead of a cam picture.

sabotloader

Good to know - I just do not know why I am able to shoot the 200 and the 215's from a 1-30 and others can not. Would my elevation play a part in that?

Scott, I am really fond of this new 215's - the nose has been completely rebuilt and closed down.

Do you have some coming?

cayugad

real good shooting and should be an excellent hunting bullet.

sabotloader

And I keep asking myself could I get that kind of accuracy if the bullets were yawing or not stabilized?

Dave if you could physically see this bullet I think you would really be impressed.

Gm54-120

Not yet but the more i look at the new 245gr CF and the 215gr, the more interested im becoming. My Pacnor 1-22 does very well with large doses of BH209 and the ULA might do well with some of the mid level smokeless loads.

Ive got some 250gr Bloodlines i can try first to make sure.

lemoyne

If I had some I would drop the charge to 80 grains and work up 10 grains at a time, might be some surprises in store.