quote:

Originally posted by Doc224/375:
Do you know how to measure your rifles chamber ?. Are loads for hunting or paper punching for ultimate accuracy ?.

Knowing the dimensions of your rifles particular chamber is extremely helpful as well as your absolute

Thank you Doc. You and others gave me many., many things to consider now. To answer your question, I plan to reload for hunting. I am writing all of these tips down. Hadn't thought about the magazine length parameters. Thanks!

OAL of the magazine well . Setting up cartridges longer than will feed is counter productive .

Knowing just how long you can make a cartridge OAL before it seats in the lands is paramount .

Some like it .005 -.020 off the lands , opinions vary !.

quote:

Originally posted by 338zmag:
If you are going to go through all the trouble of reloading, then you may as well do it right. I would get an overall length gauge from Hornady and see what the max length is for your rifle. Then I would check to see if they will work in your clip and feed into your chamber (if using a bolt action). Then back off .002 - .005 with each batch of loads until you find the COL that your rifle likes best. Of course there a lot of other variables, but I think with 5 years of general reloading experience you must have a good idea of the basic issues.

If you want to get the best consistency, then you may want to get more equipment (assuming you don't have it) such as a concentricity gauge, primer pocket uniformer, bullet comparator, etc., etc. You didn't say what the groups were other than you were pleased with them. I wouldn't waste my time reloading if I had very acceptable results from factory ammo. I reload when I don't get acceptable results from factory ammo. Good luck.

quote:

Originally posted by Winchester 69:
Most reloaders try to experiment with long lengths, getting the bullet close to the lands. You're probably limited by magazine length, and may want to see what that technique will provide while retaining reliable feed. You split a case neck, insert a bullet, mark the tip with a marker and see what your OAL is with the bullet contacting the lands. You can compare your magazine-length rounds to determine what your distance to lands is.

You may eventually try slower powders. H4831 is very popular for the caliber.

quote:

...bullet comparator...

quote:

Originally posted by M4Finny:
Hello everyone. I appreciate the great deal of knowledge on these forums. I'm a new member and new to reloading the .270 Win cartridge. As a caveat, I have primarily reloaded for handgun and for .223/5.56 mm for my AR. I have about five years experience in general reloading.

I am ready to begin reloading for my .270 Win and have my recipe and all the particular components. I have completed my case preps and will begin working up some test loads. Specifics: Nosler 130 gr BT Spitz., IMR 4895 (using powder loads beginning at 42.0 to 46.0 max). All cases are new brass and have been trimmed to same length. When I first fired my rifle, I used factory ammunition and was very pleased with the grouping even though their casing length and C.O.L. measurements varied (pre-measured before firing factory). My question is simple. I am leaning toward using the average C.O.L. taken from my pre-fired measurements (3.255) for my hand loads because the factory ammunition used the same bullet mentioned above and it functioned very well. Am I thinking this through too much? Or, am I on the correct path with regard to establishing my C.O.L.? Thanks, hope it doesn't sound too silly.