Peterson Cartridge Product Changes

At Peterson Cartridge Co. we really do listen to the feedback we receive from our customers. And we make improvements to our casings based on your recommendations. As a result, aspects of our casings change from time to time. Some of the changes could require you to revise your load for optimum performance at the target.

To keep you apprised of any improvements we make, we provide the below-listed chart, showing the different versions, and when they were instituted.

Purpose: To keep track of quality changes/differences in the calibers that we produce that could effect the customer's experience. 

The types of changes that require being listed here included:

Neck Wall Thickness, External Dimension Change, Internal Dimension Change, Neck Tension, Primer Pocket

	Caliber	Version	Date of Change	First Lot # of New Version	First QC # of New Version	Description of Change(s)                      Updated 08/23/2018
1	6mm Creedmoor	B	6/13/2018	W1TL0098	QC061318A	Anti tarnish coating applied, which adds lubricity
2	6mm Creedmoor	A	2/5/2018	W1AR0082	QC020518A	Alpha Run
3	6mm Creedmoor SRP	A	2/7/2018	W1AR0083	QC020718A	Alpha Run
4	6XC	A				Alpha run
5	6XC SRP	A				Alpha run
6	.243 Win	A	1/31/2018	W1AR0081	QC013118A	Alpha run
7	.243 Win SRP	A	2/19/2018	W1AR0082	QC021918A	Alpha run
8	6.5 Creedmoor	C	6/21/2018	W1TL0101	QC062118A	Anti tarnish coating applied, which adds lubricity
9	6.5 Creedmoor	B	1/11/2018	W1HS0078	QC011118	Modified tooling to fix neck thickness variation
10	6.5 Creedmoor	A	11/7/2016	W1TL0010	QC110716A	Alpha Run
11	6.5 Creedmoor SRP	D	7/4/2018	W1TL0102	QC070418A	Anti tarnish coating applied, which adds lubricity
12	6.5 Creedmoor SRP	C	3/28/2018	W1TL0087	QC032818A	Smaller primer pocket to prevent primers from falling out
13	6.5 Creedmoor SRP	B	1/16/2018	W1HS0079	QC011618	Deeper primer pocket to prevent primers from not seating
14	6.5 Creedmoor SRP	A		W1TL0049	QC063017A	Alpha Run
15	.260 Remington	B	1/19/2017	W1TL0019		Modified tooling to fix neck thickness variation
16	.260 Remington	A	2016			Alpha Run
17	.260 Rem SRP	A	12/12/2017	W1TL0073	QC121217AB	Alpha run
18	7mm-08 Rem	A	12/7/2017	W1AR0071	QC120717A	Alpha run
19	7mm Rem Mag	A				Alpha run
20	7.62x54R	A				Alpha run
21	.308 Win	B	7/16/2018	W1TL0104	QC071618A	Anti tarnish coating applied, which adds lubricity
22	.308 Win SRP	A	12/29/2016	W1TL0018	QC122916A	Alpha run
23	CRD Wildcat Tubes	A	7/11/2018	W1AR0106A	QC071118B	Alpha Run
24	.300 Win Mag	A				Alpha run
25	.300 Norma	C	12/17/2018	W1TL0124		Modified tooling to increase base diameter by .003"
26	.300 Norma	B	4/19/2018	W1AR0090	QC041918A	Modified tooling to fix neck thickness variation
27	.300 Norma	A	4/23/2018	W1AR0090	QC042318A	Alpha Run
28	.338 Norma	B	12/19/2018	W1TL0125		Modified tooling to fix neck thickness variation and increase base diameter by .003"
29	.338 Norma	A	4/28/2018	W1AR0091	QC042818A	Alpha run
30	.338 Lapua	B	8/13/2018	W1TL0109	QC081318A	Increased prmer pocket diameter to SAAMI min. Anti tarnish coating applied, which adds lubricity.
31	.338 Lapua	A	2016			Alpha run
32	9.5 X 77 (.375)	B	10/31/2018	W1TL0119	110118A-B	Modified tooling to fix neck thickness variation.  Increased primer pocket diameter to SAAMI min.  Anti tarnish coating applied, which adds lubricity.
33	9.5 X 77 (.375)	A	1/19/2017	W1TL0022	QC011917B	Alpha run
34	10.36 x 77 (.408)	B	11/14/2018	W1TL0120	QC111418A-B	Increased prmer pocket diameter to SAAMI min. Anti tarnish coating applied, which adds lubricity.
35	10.36 X 77 (.408)	A	2/11/2017	W1TL0025	QC021117B	Alpha run
	Parameters:
	1.  List calibers from smallest to largest, in agreement with Cartridge Comparison Guide poster.
	2.  List SRP versions on separate line.
	3.  Version "A" siginifies the first run of a caliber where we made the casings available for sale - often the Alpha Run.