Not necessarily. Small arms qualification does not prove that a person was trained on handguns. A DD 214, block 13 is prepared using all federally recognized awards, medals, badges, citations, and campaign ribbons. If the person has qualified with a pistol (sometimes referred to as handgun) they will have earned a qualification badge (marksman, sharpshooter, or expert) and it will appear in block 13. If it is not on the DD 214, it did not happen, from an official standpoint. There is a mechanism for a person to get their DD 214 corrected.
It is certainly possible that a person qualified with a pistol, and their DD 214 does not specifically say that. In that case, they would have to provide some other evidence to show this – we cannot grant proficiency because we have not seen documentation to show that.
If a person has a pistol marksmanship, pistol sharpshooter or pistol expert badge listed on the DD 214 – we can use that as proof of handgun safety training for the Oregon Concealed Handgun License.
It is ultimately your burden to show you are qualified, and you need to provide us with documentation that shows that you meet the requirements. Unfortunately, documentation you were in the military, and even documentation that you had small arms training is not specific enough to satisfy the CHL standard.