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View Full Version : sizing .40SW to .400"



1stSkink
02-08-2010, 07:25 PM
Does anyone make a sizer that will size 145g or 170g Lee .40SW bullets
to .400"?

I spoke with someone at Lazercast a while back because their bullets wouldn't chamber in a Lone WOlf barreled G22 (bullets marked as .401").

He said LW barrels were tight and that I could either find .400" sized bullets or get the chamber reamed...

thanks,
skink

mike in co
02-08-2010, 07:39 PM
Does anyone make a sizer that will size 145g or 170g Lee .40SW bullets
to .400"?

I spoke with someone at Lazercast a while back because their bullets wouldn't chamber in a Lone WOlf barreled G22 (bullets marked as .401").

He said LW barrels were tight and that I could either find .400" sized bullets or get the chamber reamed...

thanks,
skink


what good to chamber at 400 if the you still need .001 over for cast boolits.....ya telling me its a 0.399 bore ??

mike in co

1stSkink
02-08-2010, 08:01 PM
Good point, but all I know was the Lazercast bullets did mic at .401" and would not chamber...

gwilliams2
02-08-2010, 08:19 PM
I've never had any trouble with 40 cal boolits not chambering; lately I've been castin, loadin and shootin a 170 g swc at .402 dia. Chamber perfectly in my glock 27 with a lonewolf and no problems in my S & W Sigma or my sons Kahr as well. I have experience extensive problems with several 9mm's though... Certain shapes of boolits just wouldn't fully chamber no matter how they were sized; the problem was not with the diameter, but the shape of the boolit itself (the part that isn't touched by the sizer). The only way to make these rounds chamber was to seat them way too deep, I would never take a chance shooting these... Back to the melting pot.

BLTsandwedge
02-08-2010, 09:25 PM
.400 sizers......

http://www.midwayusa.com/browse/BrowseProducts.aspx?pageNum=1&tabId=1&categoryId=17787&categoryString=9315***685***9172***

fredj338
02-08-2010, 09:54 PM
It's not the bbl that is tight but the chamber. SEnd it to them, ask them to open it up 0.001". It's a pretty common issue w/ LW bbls. Did you try seating a bit deeper? Sometimes they are just cut w/ a minimal throat to the rfiling & seating a bit deeper will work. You of course have to reduce your powder charge a bit to compensate for the deeper seating.

1stSkink
02-08-2010, 10:26 PM
I thought about seating them deeper, but I already was at the starting load. Knowing the whole Glock Kb thing, I did not want to push the envelope and and increase pressure with a short round.:shock:

skink

shootinxd
02-08-2010, 10:55 PM
I am having the same issue with my 40.Cast with a lee 6cav and sized to .4015.I am told start at min charge and seat bullet deep enough to camber.I'll try this weekend.

HammerMTB
02-09-2010, 01:19 AM
I had 2 Lone Wolf bbls chambered for .40 S&W. Both were very tight. They had basically no leade to them at all.
After contacting LW, I sent them back. They fixed one and f#%ked the other one up. It took me 3 months of haggling with them to get my money back, and then they would not refund my shipping.
No more LW bbls for me...... :evil:

Shiloh
02-09-2010, 07:01 AM
It is going to be too small.

SHiloh

mike in co
02-09-2010, 11:21 AM
fix the probelm( the chamber) not the symptom(not chambering correct sized boolits)


mike in co

sqlbullet
02-09-2010, 11:34 AM
Try seating and crimping in separate steps if you aren't. I had issues with .401 bullets chambering in my EAA Match barrel (10mm). A small amount of lead was gathering just ahead of the cartridge mouth when I seat/crimp together. Separate steps and this went away, along with my chambering issue.

kawalekm
02-09-2010, 12:30 PM
Would taper crimping your rounds give any kind of improvement? I have a Wather P1 that would not chamber my lead bullet reloads. I would have to push the slide forward with my thumb to lock it into battery. A little taper crimp solved that problem.

I had to get a real taper crimping die from Hornady, the "modified taper crimp" in my Lee die set would not do it.

I've got a new Ruger in .40 auto (sorry S&W) and my cast load (also with Lee dies) is borderline for feeding with a case mouth diameter of 0.422". That is, maybe 19 out of 20 cartridges would feed properly. Once I taper crimped down to 0.421" feed issues disappeared. If you just apply enough crimp to allow feeding, you might not reduce base of the bullet, preserving gas sealing.

truckmsl
02-09-2010, 03:39 PM
Contact Lone Wolf and explain the problem. Their 40 S&W barrels should chamber a .401. I had them open up the leade area on mine so I could chamber .402 cast. A couple of days turn around, no charge. Many tens of thousands of rounds later I'm a happy customer. You don't want to go under size on a high pressure round like the .40 - you will get leading.