Thread: "Extreme Velocity Spread"!

Originally Posted by jakewire

Yes, only passing on what they told me, I have the middle of the chrony 15ft from the muzzle now, and seem to get better consistant readings.
I still throw the odd one or some reason,but my F1 chrony is the cheaper end.
Could well be your loads and not the chrony but worth a try if all else is equal including keeping the shades on etc,
I'd imagine a 300 would have some reasonable muzzle blast.

F1 Chrony is probably the same just with a few less bells and whistles, accuracy wise they're probably the same machine!

Yeah, the .300's got a bit of a blast alright, shoot long enough and you'll send the diffusers flying! I've also cracked the printer with the muzzle blast alone!

I'd still work on your grouping as it's very important, this could mean a powder variation or other things.
Consistancy is paramount.

Originally Posted by jakewire

I'd still work on your grouping as it's very important, this could mean a powder variation or other things.
Consistancy is paramount.

I've tried two different types of powder so far (IMR 4350 & RL 22) and six different bullet types, all "averaging" around the 1 - 1/2" mark!

Originally Posted by Remington 5R .300 Win Mag

I've tried two different types of powder so far (IMR 4350 & RL 22) and six different bullet types, all "averaging" around the 1 - 1/2" mark!

Ring steveo54 and tell him you need to trade for a tikka. They all shoot 1/4 moa from the box. He will love it

Originally Posted by distant stalker

Ring steveo54 and tell him you need to trade for a tikka. They all shoot 1/4 moa from the box. He will love it

And that's an inaccurate one!

Remington cough cough

Rl22 and a 208 Amax works well for me

Originally Posted by 338

Rl22 and a 208 Amax works well for me

What's an Amax like as a hunting bullet? Also, my rifle has 1 in 11.25" twist and may not suit a heavier bullet such as a 208!

Originally Posted by Remington 5R .300 Win Mag

What's an Amax like as a hunting bullet? Also, my rifle has 1 in 11.25" twist and may not suit a heavier bullet such as a 208!

The amax at 800yards leaves exit wounds big enough to put your hand in. My 1-11 twist stabilises them but any slower might be pushing it

Originally Posted by 338

The amax at 800yards leaves exit wounds big enough to put your hand in. My 1-11 twist stabilises them but any slower might be pushing it

You are right there Cam, the A-Max just plain works !!!

Originally Posted by 338

The amax at 800yards leaves exit wounds big enough to put your hand in. My 1-11 twist stabilises them but any slower might be pushing it

What are they like closer in guys, say around the 100 - 200 meter mark?

Originally Posted by Remington 5R .300 Win Mag

What are they like closer in guys, say around the 100 - 200 meter mark?

leathel,has any one mentioned using someone elses scales?what if you scales need calibrating.hope that hasnr already been mentioned.

Originally Posted by Remington 5R .300 Win Mag

What's an Amax like as a hunting bullet? Also, my rifle has 1 in 11.25" twist and may not suit a heavier bullet such as a 208!

The data I have found says the 300 win mag should be 1-10 twist like most of the Remington 30 cals which gives them an advantage over the Tikkas with the heavier projectiles.

I would be more concerned with your accuracy issues than problematic ES readings.

Originally Posted by Kiwi Greg

The data I have found says the 300 win mag should be 1-10 twist like most of the Remington 30 cals which gives them an advantage over the Tikkas with the heavier projectiles.

I would be more concerned with your accuracy issues than problematic ES readings.

Yeah, look I agree Greg, with regards to my accuracy issues, the Chrony ES (despite the Chrony being set up only 3m from the muzzle) was really a "One Off" with that sort of extreme spread, most of my other strings are generally well behaved, it was just that "One"!.. The accuracy issues, however, I am very concerned about for that's the very reason I bought this rifle and all I'm getting is a "scant" 200fps over my ole Ruger MK11 in .30-06 calibre that's shooting 180 Grain Noslers at 2,800fps with an accuracy of no more that 1-1/2" five shot groups consistently, for nearly twice the weight in rifle! (Geeze there's a lot of sad faces in my camp!)

Um, now yeah, the second thing I agree with you is... that the rifle "Should" be a 1 - 10" Twist, however, interestingly enough I actually did a YouTube Video on my rifle when I first got it, and there I demonstrated (by use of a cleaning rod and insulation tape and a rule of some sort) that my barrel (despite it having 1 in 10" twist written on the outside of it) was actually, as fellow Internet users claimed, a 1 in 11.25" Twist! So I now know first hand that it definitely "IS" a one in eleven point two five inch twist! Go figure that! So, as I say, it may not suit the heavier 208 Grain Projectile!

Originally Posted by 338

Rl22 and a 208 Amax works well for me

Whats your recipe? And also, is this in a Tikka .300 Winchester magnum? ALSO, what are the Amax's like at closer ranges 100-200m?
Thanks.