Projectile wt variances does it matter?

[Red9]

I bought some Fmj off Rocky mountain. All in all pretty happy. Cost, quality and shipping all good. For the paltry sum of 50 bucks, i got the "pulled" 10mm/.40 180 gr Fmj.
Most were 180.6 about 75 %. My question is, does weight variance matter that much? Total spread may be +- 1 gr. Lowest was 178.9. Heaviest at 181.3.

Powder: Titegroup 4.6 gr.
Oal 1.1249

I just shoot for practice and plinking. No real hardcore target shooting. Occasional plinking on buddies ranch. How much does boolit weight matter?

thanks
dino
ps ya the noob.

[Eljay]

Any kind of pulled bullets are going to be plinking grade so no surprise.

The differences are usually pretty minor at that level. I'd load up 10 of the 10.6gr and 10 from the full spectrum of lightest to heaviest and compare groups. I'd be surprised if you can tell the difference.

[jericho89]

Yes and No. If you are trying to shoot the same hole then yes the variance does matter. For 96% of people the bullets will be more accurate then the shooter. There are variances in all bullets, it is more of an issue if you are shooting rifle, and even then people will weigh them into groups and load the same weights so that they have better grouping for that batch of ammo. For handgun I would say load and go, you will not see a difference in accuracy to weight variation.

[Red9]

Any kind of pulled bullets are going to be plinking grade so no surprise.

The differences are usually pretty minor at that level. I'd load up 10 of the 10.6gr and 10 from the full spectrum of lightest to heaviest and compare groups. I'd be surprised if you can tell the difference.

Yes and No. If you are trying to shoot the same hole then yes the variance does matter. For 96% of people the bullets will be more accurate then the shooter. There are variances in all bullets, it is more of an issue if you are shooting rifle, and even then people will weigh them into groups and load the same weights so that they have better grouping for that batch of ammo. For handgun I would say load and go, you will not see a difference in accuracy to weight variation.

Pretty much how i figured. Im not the best shooter... so i need lots o practice! Lol.

Shooting, Glock 22 and sig 229. I have to say, seems the 229 shoots pretty much the same holes at 10 yards. Glock? I need more time behind that trigger.

['ol shooter]

I have test weighed the plated Xtremes I load with, and all calibers had variations, with 230 grs. of up to 5 grains. I can't tell the difference shooting them, since they are plinkers anyway.

[Red9]

I have test weighed the plated Xtremes I load with, and all calibers had variations, with 230 grs. of up to 5 grains. I can't tell the difference shooting them, since they are plinkers anyway.

Thank you for sharing that bit of intel. Was going to buy the Xtremes, but for less i got Fmjs delivered. Yes i know they ARE pulled, but who cares? The guns dont seem to mind Interesting that the plated, have so much variance.

I feel the more affordable practice i get, the better. Now if only Usi was still open.

[BigBronco]

#variancesmatter

[Mike402]

For 96% of people the bullets will be more accurate then the shooter.

Where on earth did you get 96%? Pretty specific.

#variancesmatter

Hopefully we won't see you blocking traffic this weekend as you are out protesting the unfair treatment of variances

[sghart]

At the pistol distances that most people shoot at, including me, you won't notice a difference.

I doubt there are more than a handful of guys on this forum with the guns and/or skills to tell the difference at 7 to 10 yards.

[Red9]

At the pistol distances that most people shoot at, including me, you won't notice a difference.

I doubt there are more than a handful of guys on this forum with the guns and/or skills to tell the difference at 7 to 10 yards.

Good because i loaded them all up, and the a few more.

[jericho89]

Where on earth did you get 96%? Pretty specifc

That is a scientific number that I pulled out of my backside

[Fjold]

I see 1 grain of difference in 55 rifle bullets and 2-3 grain differences in 300- 450 grain bullets, all the time.

96% of the shooters? I would have guessed closer to 99%.

[sghart]

I remember reading an article many years ago about variances in bullet weights and powder charges in commercial ammo. The authors bought sample boxes of factory rounds, disassembled them and compared the components.

I was loading single stage on an old Rockchucker in those days and being very meticulous about powder charges and trickling, etc. When I saw the variances in powder charges that they recorded I was shocked. It was an eye opener for me.

I took a different approach after that and I have to say, in hunting rifles, my practical accuracy has always been more than satisfactory.

Handgun plinking ammo gets the same treatment.

[Red9]

I remember reading an article many years ago about variances in bullet weights and powder charges in commercial ammo. The authors bought sample boxes of factory rounds, disassembled them and compared the components.

I was loading single stage on an old Rockchucker in those days and being very meticulous about powder charges and trickling, etc. When I saw the variances in powder charges that they recorded I was shocked. It was an eye opener for me.

I took a different approach after that and I have to say, in hunting rifles, my practical accuracy has always been more than satisfactory.

Handgun plinking ammo gets the same treatment.

Honestly i started to separate the rounds by weight. Then i noticed that i had too many piles. There was the bright idea of ok, with in .5 gr groups. I then realized i was thinking too hard and it was just pistol, plinking. Not the olympics or match grade.
I caved in, lumped them all back into a box and just reloaded them.

[sghart]

Honestly i started to separate the rounds by weight. Then i noticed that i had too many piles. There was the bright idea of ok, with in .5 gr groups. I then realized i was thinking too hard and it was just pistol, plinking. Not the olympics or match grade.
I caved in, lumped them all back into a box and just reloaded them.

Right on. This is supposed to be fun.

Now I'm sure there are a lot of guys reading this that cringe at the thought of cranking out rounds by the hundreds. These guys measure the water volume of each case, standardize flash holes, measure neck thickness, etc. And that is awesome.

In fact, I admire those guys. That is dedication to your craft and it pays off. Just the other night I was watching the Outdoor Channel and they were showing the 2015 Palma Matches. These shooters were hitting the bull at 1000 yards with iron sights, in a very stiff crosswind. I'm sure their ammo is loaded to the highest standards.

But I like to cast up a pile of lead bullets and go shoot them. Then go home and cast up another pile.