6mm loading

[m1aggie01]

Well, after many, many months of hanging around and slowly buying reloading items, I finally loaded my first 20 rounds of ammo over the weekend. I loaded 6mm with 95 gr Ballistic Tips...5 with 39 grains and 40 grains of IMR4350 and then 5 with Hornady 100 gr Interlocks with 37.4 and 38.4 grains of IMR4350. Hope to make it to the range soon to see how they perform. I started with the suggested starting load and then loaded my next 5 of each and added 1 grain of powder...I hope I don't blow myself up??

TIA

 

[JD338]

m1aggie01

Congratulations on your first handloads. You will do just fine by starting low and working up. Let us know how they shoot.
Remember, if you have any questions, check with your friends here on the forum.

JD338

 

[m1aggie01]

Thanks...I think that they will be fine.

After I fire these in my rifle the cases will be "fire-formed" to my chamber. How do I go back and reset my FL die to set the shoulder back a little without returning the case to "factory dimensions"? I set the FL die as stated in the die directions and the shoulder was set back pretty far...according to my Hornady headspace set.

 

[Richracer1]

Just back off your sizing die 1 turn to start. Size one case and see how it chambers. If the bolt still rotates easily, back off the die some more. Keep doing this until you feel the bolt starting to rotate harder (brass is now rubbing on the shoulder). Then turn your die down about a 1/4 turn. This is the way I did mine.

The better way would be to get the RCBS presicion mic. It's listed with the rifle dies on MidwayUSA. This mic will also help you with true bullet seat depth as well, since it measures from the ogive and not the tip.

 

[m1aggie01]

Thanks very much for the info...

 

[FOTIS]

Cartridge : 6 mm Rem.
Bullet : .243, 95, Nosler BalTip 24095
Cartridge O.A.L. L6: 2.825 inch or 71.76 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder : IMR 4350

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 77 32.80 2372 1187 26529 7996 82.2 1.574
-18.0 79 33.62 2429 1245 28177 8282 83.6 1.536
-16.0 80 34.44 2487 1305 29925 8566 84.9 1.499
-14.0 82 35.26 2545 1367 31781 8847 86.2 1.463
-12.0 84 36.08 2604 1430 33747 9123 87.4 1.428
-10.0 86 36.90 2662 1495 35834 9395 88.6 1.393
-08.0 88 37.72 2721 1562 38024 9661 89.8 1.357
-06.0 90 38.54 2779 1630 40328 9920 90.9 1.319
-04.0 92 39.36 2838 1699 42768 10172 91.9 1.283
-02.0 94 40.18 2897 1770 45355 10416 92.9 1.248
+00.0 96 41.00 2956 1843 48098 10651 93.8 1.214
+02.0 98 41.82 3015 1917 51008 10876 94.7 1.182
+04.0 100 42.64 3074 1993 54096 11091 95.5 1.150 ! Near Maximum !
+06.0 102 43.46 3133 2070 57375 11295 96.2 1.119 ! Near Maximum !
+08.0 103 44.28 3191 2148 60859 11486 96.9 1.090 ! Near Maximum !

+10.0 105 45.10 3250 2228 64562 11665 97.6 1.061 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 96 41.00 3113 2044 56725 10893 98.5 1.126 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 96 41.00 2762 1609 39686 9972 86.0 1.326

 

[Guest]

If you have the Hornady headspace guage, you can just back the die several turns (until it is not moving the shoulder at all) and then turn it in a smidgeon at a time until you get your fired measurement minus .001-.002", if I remember correctly.

Enjoy the handloading - you'll likely find it as addicting as heroin.