Range Report Load test

[tripdoc6]

I am very green in reloading and precision shooting. So please bare with me if I leave out terms or data needed. I'm looking for any advice I can get on my data. I am running savage 10t 6.5 creedmoor in a xlr chassis with a razor gen 1. My best four 5 shot groups were
Berger 140gr VLD hunter 40.3gr MV 2725 SD 26 .420 group
Berger 140gr VLD hunter 40.6gr MV 2730 SD 29 .649 group
Hornady 140 eld m 39.8gr MV 2668 SD 21 .665 group
Hornady 140 eld m 41.1gr MV 2755 SD 35 .788 group
I have afew others that were higher .7 and .8 groups those 4 were just the lowest. I am getting my MV and SD from magnetospeed sporter. My OAL 2.850. Any advice where to go or what to adjust would be much appreciated thanks in advance.

 

[Rondogg]

I dont know much either in reloading. Your powder choice will make a difference also. I measure from Ogive and not so much worry on OAL. Below is what i currently load for my MPA 6.5 with a 26" barrel. Good luck
Hornady 6.5 140gr ELD Match
With a compensator I am at 2.219
40.5gr. H4350
Hornady brass
CCI #200 primers

 

[tripdoc6]

I dont know much either in reloading. Your powder choice will make a difference also. I measure from Ogive and not so much worry on OAL. Below is what i currently load for my MPA 6.5 with a 26" barrel. Good luck
Hornady 6.5 140gr ELD Match
With a compensator I am at 2.219
40.5gr. H4350
Hornady brass
CCI #200 primers

I am at 2.246
H4350
CCI BR-2 PRIMERS

 

[ShtrRdy]

You might try different seating depths. Also, if you're measuring velocity while shooting groups, the Magnetospeed may be influencing the barrel harmonics. Some people claim that having the Mag-speed doesn't affect group size, but from my experience, it can.

 

[b6graham]

you SD sucks. and its most likely from neck tension and a shit scale. velocity is a little slow, but nothing i'd be too concerned about

you need to find the lands and measure to the ogive from there. typically .020 off the lands but may be jammed .010 into them or even .060 or more away. OAL only matters for magazines

 

[tripdoc6]

you SD sucks. and its most likely from neck tension and a shit scale. velocity is a little slow, but nothing i'd be too concerned about

you need to find the lands and measure to the ogive from there. typically .020 off the lands but may be jammed .010 into them or even .060 or more away. OAL only matters for magazines

I am using chargemaster lite scale. And those were my first loads after I measured with hornady OAL guage with compensator. I did bring it back .020 off so I'll try alittle more next round. I will also try and get groups before using magneto speed. Thanks.

 

[b6graham]

I am using chargemaster lite scale. And those were my first loads after I measured with hornady OAL guage with compensator. I did bring it back .020 off so I'll try alittle more next round. I will also try and get groups before using magneto speed. Thanks.

are you verifying the charge weights at all?

nothing wrong with the group sizes, but they'll open up quite a bit at extended ranges

 

[tripdoc6]

are you verifying the charge weights at all?

nothing wrong with the group sizes, but they'll open up quite a bit at extended ranges

No I am not verifying the weights. I do not have another scale. Is there a scale you reccomand reasonably priced?

 

[tripdoc6]

Also by seating the bullet alittle more that should drop my SD right?

 

[b6graham]

Also by seating the bullet alittle more that should drop my SD right?

doubtful

i'd look at consistent neck tension and charge weights for SD.

 

[tripdoc6]

doubtful

i'd look at consistent neck tension and charge weights for SD.

Ok I will look into getting a secondary scale to verify weights. This is prolly another stupid question but for the neck tension I am using redding full length bushing die with the 289 bushing I should get the 290 or 291 bushing and see what that does? Or should I do anything different. I dont have a concitricity gauge yet but will have one in the near future.

 

[ShtrRdy]

Regarding neck bushing size --
1. what brand brass are you using?
2. What is the case neck diameter with a bullet seated in the case?

 

[Kadams1563]

You don’t need a secondary scale. Just leave the chargemaster on about 30 minutes before you start loading. Calibrate before you use it and then when I’m load testing I calibrate every 5 rounds. This keeps the chargemaster very accurate in my testing.

I tested it with a gem pro 250 and it was spot on.

We need more info of what components your using. Brass, primers, press, dies.

The 6.5 creedmoor is easy to load for. 2750-2830 with 140’s are all pretty accurate in my testing.

 

[tripdoc6]

You don’t need a secondary scale. Just leave the chargemaster on about 30 minutes before you start loading. Calibrate before you use it and then when I’m load testing I calibrate every 5 rounds. This keeps the chargemaster very accurate in my testing.

I tested it with a gem pro 250 and it was spot on.

We need more info of what components your using. Brass, primers, press, dies.

The 6.5 creedmoor is easy to load for. 2750-2830 with 140’s are all pretty accurate in my testing.

Neck diameter with bullet is .291.
Hornady brass once fired
CCI br2 primers
H4350 powder
Co ax with redding dies

 

[JimLee]

Neck diameter with bullet is .291.
Hornady brass once fired
CCI br2 primers
H4350 powder
Co ax with redding dies

Do you know the thickness of your brass at the neck?

 

[JimLee]

Also since you have a chrono you should look up "10 shot load development", it actually works pretty well to have a methodical method of working up your loads. Some people (like myself) shoot more rounds during load development than the 10 shot method (I load 5 at each powder increment) but without fail I always get the best results in the "accuracy nodes" that show up in my chrono data. Then I start playing with seating depths within those nodes to fine tune.

 

[PinesAndProjectiles]

You don’t need a secondary scale. Just leave the chargemaster on about 30 minutes before you start loading. Calibrate before you use it and then when I’m load testing I calibrate every 5 rounds. This keeps the chargemaster very accurate in my testing.

I tested it with a gem pro 250 and it was spot on.

We need more info of what components your using. Brass, primers, press, dies.

The 6.5 creedmoor is easy to load for. 2750-2830 with 140’s are all pretty accurate in my testing.

Is that a typo or are you really calibrating your Chargemaster every 5 rounds? I calibrate once, before I load. I will then load 50 to 150 rounds. My SD is usually 7 or 8 and SD is 15 or so when measuring a five shot group.

 

[Kadams1563]

Not a typo.

I only do that when I’m loading 5 rounds at a certain charge weight. During load testing.

A friend and I tested our chargemasters extensively against a gempro 250 and found that right after calibration it will drop almost a perfect charge down to the grain. After you load a few sets of charges it starts to drift even though it will measure accurately on the CM the gempro is a much more fine scale. The gempro measures down to a single grain and is much more accurate.

Once I find a load in the middle of a node then I usually load 50 at a time before calibration.

 

[tripdoc6]

Not a typo.

I only do that when I’m loading 5 rounds at a certain charge weight. During load testing.

A friend and I tested our chargemasters extensively against a gempro 250 and found that right after calibration it will drop almost a perfect charge down to the grain. After you load a few sets of charges it starts to drift even though it will measure accurately on the CM the gempro is a much more fine scale. The gempro measures down to a single grain and is much more accurate.

Once I find a load in the middle of a node then I usually load 50 at a time before calibration.

So I narrowed a gempro 300 which is almost brand new to check my chargemaster lite loads let them warm up calibrated both and the chargemaster is weighing out .5 -.7 lighter then the gempro. Not really sure what scale to go with and have tested both with calibration weights and both are good.

 

[Seymour Fish]

So I narrowed a gempro 300 which is almost brand new to check my chargemaster lite loads let them warm up calibrated both and the chargemaster is weighing out .5 -.7 lighter then the gempro. Not really sure what scale to go with and have tested both with calibration weights and both are good.

An FX 120i and an auto-trickler will take away your pain

 

[supercorndogs]

So I narrowed a gempro 300 which is almost brand new to check my chargemaster lite loads let them warm up calibrated both and the chargemaster is weighing out .5 -.7 lighter then the gempro. Not really sure what scale to go with and have tested both with calibration weights and both are good.

Did you measure all your calibration weights on one scale to make sure they way the same?

 

[tripdoc6]

Did you measure all your calibration weights on one scale to make sure they way the same?

I did measure weights on both. I can not afford the fx scale. I think I might look into spare calibration weight and see what happens.

 

[Sogan]

Neck diameter with bullet is .291.
Hornady brass once fired
CCI br2 primers
H4350 powder
Co ax with redding dies

What dies are you using and do they take a neck bushing? You want to make sure that everything is as consistent as possible between rounds