cart SHOPPING CART You have 0 items

Discussion Forums

Search forums
Forum Index > Rifles general discussion > .22-243 load data

.22-243 load data

05 Aug 2014
@ 07:57 pm (GMT)

chris murphy

Hi all a mate just came to me with his new howa 22-243 and wanting some loads done but i can't find any data for them. does anyone have any data?


05 Aug 2014
@ 09:26 pm (GMT)

Nathan Foster

Re: .22-243 load data
HI Chris, you can start with ADI 2209 (H4350) if you want to. This will cover all bullet weights without changing powders. with 55 grain bullets, sweet spots will probably be between 43 and 45gr 2209. Start at 41 grains as we have no history for the reamer.

Add or remove 1 grain powder weight per 10 grains bullet weight when changing bullets.

Example- 75 grain bullet, start load 39 grains 2209. Expected sweet spot at 41-43 grains.

If you are going to run heavy bullets only, you might want to use ADI 2213sc for a better fill ratio.

Example- 75 grain bullet, start load 43 grains, Sweet spot expected at 44-45 grains.

Again, we have no history for the reamer so play it safe. Watch for pressure signs etc. The smallest bores are very pressure sensitive so make sure you buddy your friend through, make sure his scales are reading true.
05 Aug 2014
@ 09:36 pm (GMT)

chris murphy

Re: .22-243 load data
thanks Nathan i came to the similar starting load by looking at load data for a 55grn 243 and backing up a couple of grn for the smaller bore.
06 Aug 2014
@ 05:32 am (GMT)

Mike Davis

Re: .22-243 load data
try www.huntingnut
over on lefthand sidebar is a reloading database
a few loads in there may give you start
12 Aug 2014
@ 01:39 am (GMT)

chris murphy

Re: .22-243 load data
thanks mike


We are a small, family run business, based out of Taranaki, New Zealand, who specialize in cartridge research and testing, and rifle accurizing.