.22 Center fire 300 yard group challenge

[Karl Blanchard]

I will hopefully gunning for number 1 this weekend.  Get it...."gunning" 

[Jonathan_S]

I will hopefully gunning for number 1 this weekend.  Get it...."gunning" 

Don't make me load 20 more! Haha yeah I plan on getting smoked if BLRman posts a group

[Karl Blanchard]

I don't know man, that's some good shootin

[jasnt]

Pretty impressive shooting heavies with a 1:12 in cold weather to boot 👍🏻👍🏻
Holes look pretty round too.

[Jonathan_S]

Pretty impressive shooting heavies with a 1:12 in cold weather to boot 👍🏻👍🏻
Holes look pretty round too.

It's a bumblebee load. All the books say it won't stabilize but this one does...and he bumblebee flies despite the "laws" of physics.

[jasnt]

Have you measured the twist? I have a rem that's supposed to be a 9 1/8 twist that is 8 1/2

[Jonathan_S]

Have you measured the twist? I have a rem that's supposed to be a 9 1/8 twist that is 8 1/2

I did but just with a patch on a rod. It's definitely right around 12". Unless Interarms had some funky batch back in the day

[Reidus]

Just breaking in my new custom 22 LR custom from S and G's Custom. 72hr twist ( means the rifleing rotates 72hrs if it were a clock hand in 305mm of barrel length) Handloaded some 69gr smk's on top of some ammonium nitrate n a pinch of aluminum powder. Shot 1 decent group at 300yds but still in the break in phase so it should get better.  Was shooting in a 10-20 mph gusting crosswind which made it tough. My ti-89 with the calculus feature and taking the theory of relativity into account was showing a gyroscopic stability factor of 0.2 and a lateral phase drift coefficient of 1.1! Freaking amazimg! Super happy with my purchase! Looking forward to doing some real long range work with it.

[DaveMonti]

I find it hard to believe you got the lateral phase drift coefficient down to 1.1.  I've been shooting 22 LR for 47 years, 9 months and 18 days, hand loaded every conceivable incendiary concoction in every brass dimension with EVERY bullet available, even some I designed and cast myself, and the only way I ever sniffed a 1.1 is when my gyroscopic stability factor was 0.17 or less.  I don't know what kind of BS you are pushing, but something about your setup is clearly suspect. 

[JJB11B]

Worlds most accurate rifle. Seen some damn good grouping with this

[JJB11B]

I'm doing some experimenting with my 22-250 and my .223

[jaymark6655]

It's a spin off from this thread.

http://hunting-washington.com/smf/index.php/topic,205241.msg2753036/topicseen.html#new

I though this would be fun enough to warrant its own thread befor the other one gets derailed even more! 

Feel free to jump in with whatever you've got though. I may do it with a 68gr bullet from my 6mm BR pistol just to play along.

I will be using a 68 gr because I already have some of those loaded.

Setup:
3-9 scope
16" barrel with 1-9 twist
68gr only going 2416 fps  (supposed to be 2800 fps in a 24" barrel)
About as much energy as my muzzle loader has at 100 yds.  I usually like to keep it close to 800 ftlbs on deer when using a modern firearm, so that would limit me to 100 yds.
I probably could build up a better deer round, but its 2 hrs one way to the store and 2 hrs one way the opposite direction to the range for testing.