Bullet diameter Q

xcc_rider · November 23, 2016, 03:13 PM

I've been looking around and found 1k pulled 180gr fmj 40 cal for $95 shipped. I don't have an issue with pulled bullets for plinking\general shooting purposes (as long as they're not deformed) but they say a random amount mic out a bit small at .3995.
Do you see any issues with this besides a marginal decrease in accuracy?

I have found 1k new 180gr fmj for $116 shipped but being on a fixed income I need to count pennies and could use the $21 towards something else like primers and such.

I know I can get plated or cast for less (I use plated in my Sig) but I'll be shooting these out my carbine and velo is too high for cast and plated doesn't hold up too well.

**Unclenick** · November 23, 2016, 03:50 PM

Normal SAAMI bullet tolerances cover a bullet diameter range of about 0.003". For 10mm and 40 S&W it is from 0.3975-0.4005". Half a thousandth under nominal is well within that range and pressure should have no problem upsetting even a jacketed bullet enough to fill that last half thousandth gap.

xcc_rider · November 23, 2016, 07:37 PM

Good info, thx.

Looks like I'll be ordering some during their black Friday sale at 5% off ($90 per 1k).
Can't complain about that!

thx again

November 23, 2016, 03:13 PM	#1
xcc_rider Senior Member Join Date: March 25, 2016 Posts: 169	Bullet diameter Q I've been looking around and found 1k pulled 180gr fmj 40 cal for $95 shipped. I don't have an issue with pulled bullets for plinking\general shooting purposes (as long as they're not deformed) but they say a random amount mic out a bit small at .3995. Do you see any issues with this besides a marginal decrease in accuracy? I have found 1k new 180gr fmj for $116 shipped but being on a fixed income I need to count pennies and could use the $21 towards something else like primers and such. I know I can get plated or cast for less (I use plated in my Sig) but I'll be shooting these out my carbine and velo is too high for cast and plated doesn't hold up too well.

November 23, 2016, 03:50 PM	#2
Unclenick Staff Join Date: March 4, 2005 Location: Ohio Posts: 21,061	Normal SAAMI bullet tolerances cover a bullet diameter range of about 0.003". For 10mm and 40 S&W it is from 0.3975-0.4005". Half a thousandth under nominal is well within that range and pressure should have no problem upsetting even a jacketed bullet enough to fill that last half thousandth gap. __________________ Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle

November 23, 2016, 07:37 PM	#3
xcc_rider Senior Member Join Date: March 25, 2016 Posts: 169	Good info, thx. Looks like I'll be ordering some during their black Friday sale at 5% off ($90 per 1k). Can't complain about that! thx again