Magnetospeed Sporter review

[titch--]

Ive done a couple ladders at 300 and I use a gopro to record it. Then I watch it to see what order they come in

 

[hawk-i]

Go back to 260m... load 3rds at each powder charge... shoot each load at a separate target... I use the RED STAR TARGET 9 cross hair target.

View attachment 442120

It will be very obvious which load is working best when you separate each charge on a clean target... if you prefer 4 or 5 rds per step, have at it. Target for my FTR 308Win work up using the "then new" Matrix bullet.

I think you are making this ALOT harder then it needs to be. This is pretty much the pattern you see going into and out of a node... so yes, the group pattern for B and D are repeatable.. some close together then a 'flyer'. Increase the rd count and the central cluster will increase BUT there will also be a ring of flyers.

Why being able to plot each impact in real time is important... always compare the impact to the group center.. and the wind.

These are the "must have pulled that shot" loads.... when more then likely it is a load out of tune with the barrel (but then some don't consider barrel movements relevant anymore... they make me smile)

Load C will just get rounder and slightly bigger as you put more bullets through the small group. Pretty sure each letter is 0.2gr apart... you can muck with seating depths for Load C if you want to see if there is anything left to tune out.

FYI, if there were an 'F' load, it would be big and non descript... just like 'A'. Keep adding powder and this pattern will repeat.. with pressure being your limiting factor. I don't use this higher node anymore... just too fussy for my tastes

Jerry

PS.. if you are using a Tikka and hornady bullets, I would be very happy with consistent 1/2 to 2/3 MOA groups that far out. If you want tighter, you should consider better bullets as a min... and then a match barrel as ideal.

What was your powder charges on these groups?

 

[Mystic Precision]

It was a while back and I don't remember.

Just go with standard load data for Varget.... I don't stray from print data

It would have been 10 thou OFF the lands. CCI 450 Lapua brass

Jerry

 

[Mystic Precision]

Once again thank you for the thoughtful and informative replies Jerry. The plan is to get a match barrel once this one has been shot out. Maybe I’ll switch back to Bergers when that happens.

How many rds have your fired? Were you happy with the results? How much did that cost?

For me, missing is really really expensive. With the combos I am familiar with and match barrels with quality bullets, I typically find the node within 21rds.... often 9 to 12rds

Match barrels and quality match bullets are .... CHEAP!

Jerry

 

[Tikka223]

Well I’ve settled on 42.5gr of H4350. I shot the following groups without the Magnetospeed then used it to check the velocity. This is actually several groups that I’ve overlayed. Of particular interest is that the POA never changed but the 42.5gr group was quite a bit left of the other groups. Strange. The total group including all shots 42.4,42.5,42.6 has a max vertical of 1.6” at 300m. I’m happy with that. The numbers are per the Magnetospeed (10 shots): AV 2676, ES 25, SD 7.

 

[Tikka223]

I can honestly say that the Magnetospeed has been 100% reliable over more than 100 shots out of various calibers. It has missed one shot out of a .22lr and it was my fault because I forgot to increase the sensitivity. I find it increasingly fast to install and take down and it is dead simple to use.